The buyer question · week of Nov 2 – 8

Best Vitamin C Serums Ranking

Picked by AI, checked by people.

The weekly chart ?

The top 20 products brands right now.

Product chart

Current race ?

This week ?

Timeless 20% Vitamin C + E Ferulic Acid Serum holds #1.

#1 in 3 of the last 25 weeks

2 back2 out

All 27 moves ↓

Tap a card for each AI’s place and the monthly check.

#ProductPlace by weekLast weekWeeks in top 20Top-20 weeks
  1. #1same place as last week20% Vitamin C + E Ferulic Acid SerumTimelessMonthly check: Passes the checkLast week #1 · 25 weeks in top 20

    AI places · this week ?

    1. GPT#11
    2. Claude#2
    3. Gemininot named
    4. AI Modenot named
    5. Grok#7
    6. Perplexity#5

    named by 4/6

    The card’s #1 is the 4-week average.

    People · October 2026 check ?

    • Passes the check · buyers rate it highly ?
    • Buyers’ rating4.817,753 ratings · Oct 2026
    • Owners’ threads: widespread, serious failures0serious failures · 9 threads read · Oct 2026
    Evidence
    Check evidence
    Frozen October 29, 2026
    Owners

    9 threads read · 0 serious failure themes

    Watch · YouTube ?

    Timeless 20% Vitamin C + E Ferulic Acid Serum - Best USA Vitamin C? | Doctors ReviewYouTube: Doctor Anne · 41.9K views · Aug 2022
    Search Google for Timeless 20% Vitamin C + E Ferulic Acid Serum
  2. #2same place as last weekC15 Super BoosterPaula's ChoiceLast week #2 · 25 weeks in top 20

    AI places · this week ?

    1. GPT#3
    2. Claude#3
    3. Gemini#2
    4. AI Modenot named
    5. Grok#3
    6. Perplexitynot named

    named by 4/6

    The card’s #2 is the 4-week average.

    People · October 2026 check ?

    • Buyers’ rating4.43,767 ratings · Oct 2026
    • Score read from review videos4.0/5read from 5 videos · Oct 2026 ? 123

    Watch · YouTube ?

    Paula's Choice Skincare 🍊 C15 Vitamin C Super Booster Vitamin C Serum Review and How to UseYouTube: No BS Beauty · 27.1K views · Oct 2020
    Search Google for Paula's Choice C15 Super Booster
  3. #3up 5 places since last weekC-Firma Fresh Day SerumDrunk ElephantLast week #8 · 25 weeks in top 20

    AI places · this week ?

    1. GPT#4
    2. Claude#4
    3. Gemini#4
    4. AI Modenot named
    5. Grok#5
    6. Perplexity#17

    named by 5/6

    The card’s #3 is the 4-week average.

    People · October 2026 check ?

    • Buyers’ rating4.215,976 ratings · Oct 2026
    • Score read from review videos3.8/5read from 3 videos · Oct 2026 ? 123

    Watch · YouTube ?

    DRUNK ELEPHANT C-FIRMA FRESH DAY SERUM | REVIEWYouTube: Sincerely Miss Ash · 34K views · Oct 2021
    Search Google for Drunk Elephant C-Firma Fresh Day Serum
  4. #4down 1 place since last weekC.E.O. 15% Vitamin C Brightening SerumSunday RileyMonthly check: Passes the checkLast week #3 · 25 weeks in top 20

    AI places · this week ?

    1. GPT#5
    2. Claude#24
    3. Gemininot named
    4. AI Modenot named
    5. Grok#6
    6. Perplexity#8

    named by 4/6

    The card’s #4 is the 4-week average.

    People · October 2026 check ?

    • Passes the check · video reviews and the press rate it highly ?
    • Buyers’ rating4.312,121 ratings · Jun 2026
    • Score read from review videos4.3/5read from 2 videos · Oct 2026 ? 12
    • Press2/3outlets recommend · 0 with more cons than pros · Jul 2026
    Evidence
    Check evidence
    Frozen October 29, 2026
    Press · 3 publications
    • ForbesRecommends · Date not savedOriginal
    • ByrdieRecommends · Date not savedOriginal
    • AllureMixed · Date not savedOriginal

    Watch · YouTube ?

    SUNDAY RILEY C.E.O 15% Vitamin C Brightening Serum HONEST REVIEW!YouTube: Nicole Lisa · 5.9K views · Oct 2022
    Search Google for Sunday Riley C.E.O. 15% Vitamin C Brightening Serum
  5. #5same place as last weekProfessional-C Serum 20%ObagiMonthly check: Passes the checkLast week #5 · 25 weeks in top 20

    AI places · this week ?

    1. GPT#6
    2. Claude#9
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexity#2

    named by 3/6

    The card’s #5 is the 4-week average.

    People · October 2026 check ?

    • Passes the check · buyers rate it highly ?
    • Buyers’ rating4.82,543 ratings · Oct 2026

    Watch · YouTube ?

    Obagi Professional C Serum 20% reviewYouTube: Health.doc1- keloii12 · 2.4K views · Jul 2021
    Search Google for Obagi Professional-C Serum 20%
  6. #6down 2 places since last weekVitamin C Complex SerumNaturiumLast week #4 · 20 weeks in top 20Monthly check: People disagree: AI #6 · people #11 of 13

    AI places · this week ?

    1. GPT#9
    2. Claude#11
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexity#9

    named by 3/6

    The card’s #6 is the 4-week average.

    People · October 2026 check ?

    • People disagree: people’s order#11people’s order, of 13 checked · AI #6 ?
    • Buyers’ rating4.42,452 ratings · Oct 2026
    • Score read from review videos3.0/5read from 3 videos · Oct 2026 ? 123
    • Owners’ threads: widespread, serious failures0serious failures · 9 threads read · Oct 2026
    • Press3/5outlets recommend · 0 with more cons than pros · Aug 2026
    Evidence
    Check evidence
    Frozen October 29, 2026
    Press · 5 publications
    • ForbesMixed · Date not savedOriginal
    • ByrdieRecommends · Date not savedOriginal
    • The New York TimesRecommends · Date not savedOriginal
    • harpersbazaar.comMixed · Date not savedOriginal
    • AllureRecommends · Date not savedOriginal
    Owners

    9 threads read · 0 serious failure themes

    Watch · YouTube ?

    30 DAY SKIN CARE TEST: NATURIUM VITAMIN C COMPLEX SERUM! Before & Afters! Dry, Acne Prone SkinYouTube: Jacqueline Lemieux · 15.9K views · Oct 2021
    Search Google for Naturium Vitamin C Complex Serum
  7. #7up 3 places since last weekAscorbyl Glucoside Solution 12%The OrdinaryLast week #10 · 22 weeks in top 20

    AI places · this week ?

    1. GPT#12
    2. Claude#12
    3. Gemininot named
    4. AI Modenot named
    5. Grok#4
    6. Perplexitynot named

    named by 3/6

    The card’s #7 is the 4-week average.

    People · October 2026 check ?

    • Buyers’ rating4.63,913 ratings · Oct 2026
    • Score read from review videos4.0/5read from 5 videos · Oct 2026 ? 123
    • Owners’ threads: widespread, serious failures0serious failures · 9 threads read · Oct 2026
    Evidence
    Check evidence
    Frozen October 29, 2026
    Owners

    9 threads read · 0 serious failure themes

    Watch · YouTube ?

    The Ordinary Ascorbyl Glucoside Solution 12% Review | Vitamin C serum for face | Researcher ExplainsYouTube: Dr. Ashwini Megur · 19.6K views · Oct 2024
    Search Google for The Ordinary Ascorbyl Glucoside Solution 12%
  8. #8up 5 places since last weekC+ Correcting Complex 30%Revision Skincarenot checkedLast week #13 · 9 weeks in top 20

    AI places · this week ?

    1. GPT#7
    2. Claude#8
    3. Gemininot named
    4. AI Modenot named
    5. Grok#21
    6. Perplexity#7

    named by 4/6

    The card’s #8 is the 4-week average.

    Not in the October 2026 check ?

    Search Google for Revision Skincare C+ Correcting Complex 30%
  9. #9same place as last weekC E Ferulic with 15% L-Ascorbic AcidSkinCeuticalsLast week #9 · 10 weeks in top 20Monthly check: Fails the check: video reviews 2.3/5

    AI places · this week ?

    1. GPT#1
    2. Claudenot named
    3. Gemini#1
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 2/6

    The card’s #9 is the 4-week average.

    People · October 2026 check ?

    • Score read from review videos2.3/5read from 2 videos · Oct 2026 ? 12

    Watch · YouTube ?

    SkinCeuticals C E Ferulic With 15% L-ascorbic Acid ReviewYouTube: itsjustmejamie · 3.1K views · Oct 2021
    Search Google for SkinCeuticals C E Ferulic with 15% L-Ascorbic Acid
  10. #10down 4 places since last weekC E FerulicSkinCeuticalsLast week #6 · 25 weeks in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claude#1
    3. Gemininot named
    4. AI Modenot named
    5. Grok#1
    6. Perplexitynot named

    named by 2/6

    The card’s #10 is the 4-week average.

    People · October 2026 check ?

    • Buyers’ rating5.026 ratings · Oct 2026

    Watch · TikTok ?

    1 TikTok clip · 1.9K views

    1.9K
    Search Google for SkinCeuticals C E Ferulic
  11. #11down 4 places since last weekPure Vitamin C10 SerumLa Roche-PosayLast week #7 · 24 weeks in top 20Monthly check: Fails the check: video reviews 2.3/5

    AI places · this week ?

    1. GPTnot named
    2. Claude#5
    3. Gemininot named
    4. AI Modenot named
    5. Grok#2
    6. Perplexitynot named

    named by 2/6

    The card’s #11 is the 4-week average.

    People · October 2026 check ?

    • Buyers’ rating4.410,994 ratings · Jun 2026
    • Score read from review videos2.3/5read from 3 videos · Oct 2026 ? 123
    • Press4/5outlets recommend · 1 with more cons than pros · Jun 2026
    Evidence
    Check evidence
    Frozen October 29, 2026
    Press · 5 publications
    • Skin EliteRecommends · Date not savedOriginal
    • Beautycrew.com.auRecommends · Date not savedOriginal
    • Geeky PoshRecommends · Date not savedOriginal
    • AnastasijaRecommends · Date not savedOriginal
    • Dukes AvenueMore cons than pros · Date not savedOriginal
    Search Google for La Roche-Posay Pure Vitamin C10 Serum
  12. #12same place as last weekSkin Renewing Vitamin C SerumCeraVeLast week #12 · 25 weeks in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claudenot named
    3. Gemini#6
    4. AI Modenot named
    5. Grok#11
    6. Perplexity#15

    named by 3/6

    The card’s #12 is the 4-week average.

    People · October 2026 check ?

    • Buyers’ rating4.34,057 ratings · Oct 2026
    • Owners’ threads: widespread, serious failures0serious failures · 9 threads read · Oct 2026
    • Press3/4outlets recommend · 0 with more cons than pros · Jul 2026
    Evidence
    Check evidence
    Frozen October 29, 2026
    Press · 4 publications
    • The GuardianRecommends · Date not savedOriginal
    • The New York TimesRecommends · Date not savedOriginal
    • AllureMixed · Date not savedOriginal
    • ByrdieRecommends · Date not savedOriginal
    Owners

    9 threads read · 0 serious failure themes

    Search Google for CeraVe Skin Renewing Vitamin C Serum
  13. #13up 2 places since last weekVitamin C12 SerumLa Roche-Posaynot checkedLast week #15 · 2 weeks in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claudenot named
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexity#14

    named by 1/6

    The card’s #13 is the 4-week average.

    Not in the October 2026 check ?

    Search Google for La Roche-Posay Vitamin C12 Serum
  14. #14down 3 places since last weekPowerful-Strength Line-Reducing ConcentrateKiehl'sLast week #11 · 20 weeks in top 20

    AI places · this week ?

    1. GPT#16
    2. Claudenot named
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 1/6

    The card’s #14 is the 4-week average.

    People · October 2026 check ?

    • Buyers’ rating4.46,142 ratings · Oct 2026
    Search Google for Kiehl's Powerful-Strength Line-Reducing Concentrate
  15. #15up 2 places since last weekC E Ferulic AcidSkinCeuticalsnot checkedLast week #17 · 2 weeks in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claudenot named
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 0/6

    The card’s #15 is the 4-week average.

    Not in the October 2026 check ?

    Search Google for SkinCeuticals C E Ferulic Acid
  16. #16up 2 places since last weekC-Tetra AdvancedMedik8not checkedLast week #18 · 2 weeks in top 20

    AI places · this week ?

    1. GPT#2
    2. Claudenot named
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 1/6

    The card’s #16 is the 4-week average.

    Not in the October 2026 check ?

    Search Google for Medik8 C-Tetra Advanced
  17. #17up 3 places since last weekGlow Maker Vitamin C SerumMaelovenot checkedLast week #20 · 2 weeks in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claudenot named
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 0/6

    The card’s #17 is the 4-week average.

    Not in the October 2026 check ?

    Search Google for Maelove Glow Maker Vitamin C Serum
  18. #18up 3 places since last weekThe Glow MakerMaeloveRe-entrynot checkedLast week #21 · 6 weeks in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claude#14
    3. Gemini#20
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 2/6

    The card’s #18 is the 4-week average.

    Not in the October 2026 check ?

    Search Google for Maelove The Glow Maker
  19. #19down 3 places since last weekC E Ferulic (2026 Formulation)SkinCeuticalsnot checkedLast week #16 · 2 weeks in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claudenot named
    3. Gemininot named
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 0/6

    The card’s #19 is the 4-week average.

    Not in the October 2026 check ?

    Search Google for SkinCeuticals C E Ferulic (2026 Formulation)
  20. #20up 3 places since last weekLiftActiv Vitamin C SerumVichyRe-entryLast week #23 · 18 weeks in top 20

    AI places · this week ?

    1. GPTnot named
    2. Claude#6
    3. Gemini#9
    4. AI Modenot named
    5. Groknot named
    6. Perplexitynot named

    named by 2/6

    The card’s #20 is the 4-week average.

    People · October 2026 check ?

    • Buyers’ rating4.45,387 ratings · Oct 2026
    • Press4/4outlets recommend · 0 with more cons than pros · Jul 2026
    Evidence
    Check evidence
    Frozen October 29, 2026
    Press · 4 publications
    • New York MagazineRecommends · Date not savedOriginal
    • The New York TimesRecommends · Date not savedOriginal
    • Harper's BAZAARRecommends · Date not savedOriginal
    • ForbesRecommends · Date not savedOriginal
    Search Google for Vichy LiftActiv Vitamin C Serum

Dropped out of the top 20 ?

Show places 21–100Hide places 21–100
  1. #21Vitamin C+E ComplexSkinMedica · last wk #28 0 wks in top 20
  2. #22Lucent-C Brightening Vitamin C SerumPrequel · last wk #32 0 wks in top 20
  3. #23Mad Hippie Vitamin C SerumMad Hippie · last wk #14 16 wks in top 20
  4. #24Pure Vitamin C12 SerumLa Roche-Posay · last wk #19 2 wks in top 20
  5. #25Phloretin CFSkinCeuticals · last wk #38 15 wks in top 20
  6. #2625% Vitamin C + Glutathione Clinical SerumPaula's Choice · last wk #29 0 wks in top 20
  7. #27Alto Advanced Defense and Repair SerumSkinBetter · last wk #24 2 wks in top 20
  8. #28C15 Super Booster (v4)Paula's Choice · last wk #25 0 wks in top 20
  9. #29Environmental Shield Essential-C SerumMurad · last wk #45 0 wks in top 20
  10. #30Vitamin C Facial SerumTruSkin · last wk — 0 wks in top 20
  11. #31C15 Super Booster 2026 EditionPaula's Choice · last wk #33 0 wks in top 20
  12. #32Banana Bright Vitamin C SerumOle Henriksen · last wk #22 9 wks in top 20
  13. #33Universal C Skin RefinerBeautyStat · last wk #30 1 wk in top 20
  14. #34C-GlowGeek & Gorgeous · last wk #49 0 wks in top 20
  15. #35C-Tetra Advanced 20% Vitamin C Gel-SerumMedik8 · last wk #72 0 wks in top 20
  16. #36C.E.O. 15% Vitamin C Rapid Flash SerumSunday Riley · last wk #75 0 wks in top 20
  17. #3720% Vitamin C + E Ferulic 2026Timeless · last wk #35 0 wks in top 20
  18. #3835% Vitamin C+ Perfecting SerumAllies of Skin · last wk #26 0 wks in top 20
  19. #39C+ Collagen Brighten & Firm Vitamin C SerumDr. Dennis Gross · last wk #42 0 wks in top 20
  20. #40Vita-C Glycolic Brightening SerumMurad · last wk #34 20 wks in top 20
  21. #41LiftActiv Vitamin C Serum 16%Vichy · last wk #56 0 wks in top 20
  22. #4220% Vitamin C Brighten + Firm SerumAllies of Skin · last wk #44 0 wks in top 20
  23. #43The Vitamin C 23 SerumCosRX · last wk #36 9 wks in top 20Fails the check
  24. #44Vitamin C + Lactic 15% Firm & Bright SerumDr. Dennis Gross · last wk #41 0 wks in top 20
  25. #45Vitamin C Serum Pro 2026TruSkin · last wk #40 0 wks in top 20
  26. #46Vitamin C Suspension 30% in SiliconeThe Ordinary · last wk #48 0 wks in top 20
  27. #47Vitamin C Suspension 23% + HA Spheres 2%The Ordinary · last wk #43 6 wks in top 20
  28. #48The Brightening SerumTatcha · last wk #61 0 wks in top 20
  29. #49Powerful-Strength Line-Reducing & Dark Circle Vitamin C SerumKiehl's · last wk — 0 wks in top 20
  30. #5015% Vitamin C + Clean Caffeine Energy SerumYouth To The People · last wk #97 0 wks in top 20
  31. #51C E Ferulic (Next-Generation Formula)SkinCeuticals · last wk — 0 wks in top 20
  32. #52Vitamin Nectar Glow Juice Antioxidant Face SerumFresh · last wk #52 0 wks in top 20
  33. #53C E Ferulic 2026 EditionSkinCeuticals · last wk #53 0 wks in top 20
  34. #54LiftActiv Supreme Vitamin C SerumVichy · last wk — 0 wks in top 20
  35. #55C E Ferulic 2025 FormulaSkinCeuticals · last wk #55 0 wks in top 20
  36. #56C15 Super Booster Gen 5Paula's Choice · last wk #58 0 wks in top 20
  37. #57Multi Correxion Revive + Glow Daily SerumRoC · last wk — 0 wks in top 20
  38. #5810% Pure Vitamin C SerumLa Roche-Posay · last wk — 1 wk in top 20
  39. #59Truth SerumOle Henriksen · last wk #27 14 wks in top 20
  40. #60Bakuchiol + Vitamin C 2026Herbivore · last wk #60 0 wks in top 20
  41. #61Ascorbyl Glucoside 20% 2026The Ordinary · last wk #62 0 wks in top 20
  42. #62Biolumin-C SerumDermalogica · last wk #70 0 wks in top 20
  43. #63C.E.O. 15% Vitamin C Brightening Serum (Gen-II)Sunday Riley · last wk #64 0 wks in top 20
  44. #64Pure Vitamin C10 Serum LatestLa Roche-Posay · last wk #65 0 wks in top 20
  45. #65C15 Brightening Super BoosterPaula's Choice · last wk #66 0 wks in top 20
  46. #66Vitamin C Super Serum (Advanced Formula)TruSkin · last wk #69 0 wks in top 20
  47. #67Ascorbyl Glucoside Solution 15% 2025The Ordinary · last wk #68 0 wks in top 20
  48. #68TruSkin Vitamin C Super Serum (Plus+)TruSkin · last wk #71 0 wks in top 20
  49. #69C-Firma Fresh Day Serum 2.0Drunk Elephant · last wk #73 0 wks in top 20
  50. #70C E Ferulic 2026 FormulaSkinCeuticals · last wk #80 0 wks in top 20
  51. #71C15 Super Booster Gen 3Paula's Choice · last wk #76 0 wks in top 20
  52. #72C-Firma Fresh Vitamin-C Day SerumDrunk Elephant · last wk #77 0 wks in top 20
  53. #73Skin Renewing Vitamin C Serum (2026 Edition)CeraVe · last wk #78 0 wks in top 20
  54. #74C.E.O. 15% Vitamin C Serum 2026Sunday Riley · last wk #79 0 wks in top 20
  55. #75C-Firma Fresh 2.0Drunk Elephant · last wk #37 0 wks in top 20
  56. #76C-Tetra LuxeMedik8 · last wk #87 2 wks in top 20
  57. #77C.E.O. 15% Vitamin C LatestSunday Riley · last wk #82 0 wks in top 20
  58. #78Banana Bright Vitamin C Serum (v2)Ole Henriksen · last wk #83 0 wks in top 20
  59. #79C.E.O. 15% Vitamin C 2026Sunday Riley · last wk #84 0 wks in top 20
  60. #80Ascorbic Acid 8% + Alpha Arbutin 2%The Ordinary · last wk #39 0 wks in top 20
  61. #81LiftActiv Vitamin C Serum 15%Vichy · last wk — 0 wks in top 20
  62. #82Vitamin C Suspension 23% + HA Spheres 2nd GenThe Ordinary · last wk #85 0 wks in top 20
  63. #83Brighten + Firm 15% Vitamin C SerumSkinfix · last wk #86 0 wks in top 20
  64. #84Vitamin C + Advanced Brightening Serumgoop · last wk — 0 wks in top 20
  65. #85Environmental Shield Vita-C Glycolic Brightening SerumMurad · last wk #31 0 wks in top 20
  66. #86Vitamin C Suspension 31% + HAThe Ordinary · last wk — 0 wks in top 20
  67. #87C-Firma Fresh Day Serum (2026 Refresh)Drunk Elephant · last wk — 0 wks in top 20
  68. #88The Vitamin C Glow SerumTatcha · last wk — 0 wks in top 20
  69. #89Vitamin C Serum Advanced FormulaTruSkin · last wk #92 0 wks in top 20
  70. #90Pure Vitamin C10 Serum RenewedLa Roche-Posay · last wk #93 0 wks in top 20
  71. #91C-Firma Fresh Day Serum 2026Drunk Elephant · last wk #90 0 wks in top 20
  72. #92Ascorbyl Glucoside 15% SolutionThe Ordinary · last wk #91 0 wks in top 20
  73. #93C-Firma Fresh Day Serum (Gen 2)Drunk Elephant · last wk #96 0 wks in top 20
  74. #94Pure Vitamin C10 Serum 2026La Roche-Posay · last wk #95 0 wks in top 20
  75. #95Squalane + 10% Vitamin C Dark Spot SerumBiossance · last wk — 0 wks in top 20
  76. #96AlphaRet Vitamin C SerumSkinBetter · last wk #100 0 wks in top 20
  77. #97Freshly Juiced Vitamin DropKlairs · last wk — 0 wks in top 20
  78. #9820% Vitamin C + E Ferulic 2025Timeless · last wk — 0 wks in top 20
  79. #99Vitamin C Super Serum PlusNaturium · last wk — 0 wks in top 20
  80. #100Skin Renewing Vitamin C Serum LatestCeraVe · last wk — 0 wks in top 20

Brand chart

Current race ?

This week ?

SkinCeuticals holds #1.

#1 in 25 of the last 25 weeks

All 23 moves ↓

Tap a card for its products here, its price tier and other charts.

#BrandPlace by weekLast weekWeeks in top 20Top-20 weeks
  1. #1same place as last weekSkinCeuticalsModels here: #9 C E Ferulic with 15% L-Ascorbic Acid · #10 C E Ferulic · +7Last week #1 · 25 weeks in top 20

    SkinCeuticals products here ?

    9 products in the top 100 · 4 in the top 20

    1. #9 C E Ferulic with 15% L-Ascorbic AcidFails the check: video 2.3/5
    2. #10 C E FerulicBuyers’ rating 5.0 · 26 ratings · Oct 2026
    3. #15 C E Ferulic Acidnot checked
    4. #19 C E Ferulic (2026 Formulation)not checked
    5. #25 Phloretin CFbelow the top 20

    Where SkinCeuticals is strong · top 20 ?

    Search Google for SkinCeuticals vitamin c serums
  2. #2same place as last weekPaula's ChoiceModels here: #2 C15 Super Booster · #26 25% Vitamin C + Glutathione Clinical Serum · +5Last week #2 · 25 weeks in top 20

    Paula's Choice products here ?

    7 products in the top 100 · 1 in the top 20

    1. #2 C15 Super BoosterBuyers’ rating 4.4 · 3.8K ratings · Oct 2026
    2. #26 25% Vitamin C + Glutathione Clinical Serumbelow the top 20
    3. #28 C15 Super Booster (v4)below the top 20
    4. #31 C15 Super Booster 2026 Editionbelow the top 20
    5. #56 C15 Super Booster Gen 5below the top 20

    Where Paula's Choice is strong · top 20 ?

    Search Google for Paula's Choice vitamin c serums
  3. #3same place as last weekLa Roche-PosayModels here: #11 Pure Vitamin C10 Serum · #13 Vitamin C12 Serum · +5Last week #3 · 25 weeks in top 20

    La Roche-Posay products here ?

    7 products in the top 100 · 2 in the top 20

    1. #11 Pure Vitamin C10 SerumFails the check: video 2.3/5
    2. #13 Vitamin C12 Serumnot checked
    3. #24 Pure Vitamin C12 Serumbelow the top 20
    4. #58 10% Pure Vitamin C Serumbelow the top 20
    5. #64 Pure Vitamin C10 Serum Latestbelow the top 20

    Where La Roche-Posay is strong · top 20 ?

    Search Google for La Roche-Posay vitamin c serums
  4. #4same place as last weekTimelessModels here: #1 20% Vitamin C + E Ferulic Acid Serum · #37 20% Vitamin C + E Ferulic 2026 · +1Last week #4 · 24 weeks in top 20

    Timeless products here ?

    3 products in the top 100 · 1 in the top 20

    1. #1 20% Vitamin C + E Ferulic Acid SerumPasses the check: buyers 4.8★
    2. #37 20% Vitamin C + E Ferulic 2026below the top 20
    3. #98 20% Vitamin C + E Ferulic 2025below the top 20
    Search Google for Timeless vitamin c serums
  5. #5up 2 places since last weekThe OrdinaryModels here: #7 Ascorbyl Glucoside Solution 12% · #46 Vitamin C Suspension 30% in Silicone · +7Last week #7 · 25 weeks in top 20

    The Ordinary products here ?

    9 products in the top 100 · 1 in the top 20

    1. #7 Ascorbyl Glucoside Solution 12%Buyers’ rating 4.6 · 3.9K ratings · Oct 2026
    2. #46 Vitamin C Suspension 30% in Siliconebelow the top 20
    3. #47 Vitamin C Suspension 23% + HA Spheres 2%below the top 20
    4. #61 Ascorbyl Glucoside 20% 2026below the top 20
    5. #67 Ascorbyl Glucoside Solution 15% 2025below the top 20

    Where The Ordinary is strong · top 20 ?

    Search Google for The Ordinary vitamin c serums
  6. #6down 1 place since last weekSunday RileyModels here: #4 C.E.O. 15% Vitamin C Brightening Serum · #36 C.E.O. 15% Vitamin C Rapid Flash Serum · +4Last week #5 · 25 weeks in top 20

    Sunday Riley products here ?

    6 products in the top 100 · 1 in the top 20

    1. #4 C.E.O. 15% Vitamin C Brightening SerumPasses the check: video reviews 4.3/5 · press 2/3
    2. #36 C.E.O. 15% Vitamin C Rapid Flash Serumbelow the top 20
    3. #63 C.E.O. 15% Vitamin C Brightening Serum (Gen-II)below the top 20
    4. #74 C.E.O. 15% Vitamin C Serum 2026below the top 20
    5. #77 C.E.O. 15% Vitamin C Latestbelow the top 20

    Where Sunday Riley is strong · top 20 ?

    Search Google for Sunday Riley vitamin c serums
  7. #7down 1 place since last weekDrunk ElephantModels here: #3 C-Firma Fresh Day Serum · #69 C-Firma Fresh Day Serum 2.0 · +5Last week #6 · 25 weeks in top 20

    Drunk Elephant products here ?

    7 products in the top 100 · 1 in the top 20

    1. #3 C-Firma Fresh Day SerumBuyers’ rating 4.2 · 16K ratings · Oct 2026
    2. #69 C-Firma Fresh Day Serum 2.0below the top 20
    3. #72 C-Firma Fresh Vitamin-C Day Serumbelow the top 20
    4. #75 C-Firma Fresh 2.0below the top 20
    5. #87 C-Firma Fresh Day Serum (2026 Refresh)below the top 20

    Where Drunk Elephant is strong · top 20 ?

    Search Google for Drunk Elephant vitamin c serums
  8. #8up 2 places since last weekVichyModels here: #20 LiftActiv Vitamin C Serum · #41 LiftActiv Vitamin C Serum 16% · +2Last week #10 · 25 weeks in top 20

    Vichy products here ?

    4 products in the top 100 · 1 in the top 20

    1. #20 LiftActiv Vitamin C SerumBuyers’ rating 4.4 · 5.4K ratings · Oct 2026
    2. #41 LiftActiv Vitamin C Serum 16%below the top 20
    3. #54 LiftActiv Supreme Vitamin C Serumbelow the top 20
    4. #81 LiftActiv Vitamin C Serum 15%below the top 20

    Where Vichy is strong · top 20 ?

    Search Google for Vichy vitamin c serums
  9. #9up 2 places since last weekNaturiumModels here: #6 Vitamin C Complex Serum · #99 Vitamin C Super Serum PlusLast week #11 · 20 weeks in top 20

    Naturium products here ?

    2 products in the top 100 · 1 in the top 20

    1. #6 Vitamin C Complex SerumPeople disagree
    2. #99 Vitamin C Super Serum Plusbelow the top 20

    Where Naturium is strong · top 20 ?

    Search Google for Naturium vitamin c serums
  10. #10down 2 places since last weekCeraVeModels here: #12 Skin Renewing Vitamin C Serum · #73 Skin Renewing Vitamin C Serum (2026 Edition) · +1Last week #8 · 25 weeks in top 20

    CeraVe products here ?

    3 products in the top 100 · 1 in the top 20

    1. #12 Skin Renewing Vitamin C SerumBuyers’ rating 4.3 · 4.1K ratings · Oct 2026
    2. #73 Skin Renewing Vitamin C Serum (2026 Edition)below the top 20
    3. #100 Skin Renewing Vitamin C Serum Latestbelow the top 20

    Where CeraVe is strong · top 20 ?

    Search Google for CeraVe vitamin c serums
  11. #11down 2 places since last weekKiehl'sModels here: #14 Powerful-Strength Line-Reducing Concentrate · #49 Powerful-Strength Line-Reducing & Dark Circle Vitamin C SerumLast week #9 · 25 weeks in top 20

    Kiehl's products here ?

    2 products in the top 100 · 1 in the top 20

    1. #14 Powerful-Strength Line-Reducing ConcentrateBuyers’ rating 4.4 · 6.1K ratings · Oct 2026
    2. #49 Powerful-Strength Line-Reducing & Dark Circle Vitamin C Serumbelow the top 20

    Where Kiehl's is strong · top 20 ?

    Search Google for Kiehl's vitamin c serums
  12. #12same place as last weekObagiModels here: #5 Professional-C Serum 20%Last week #12 · 25 weeks in top 20

    Obagi products here ?

    1 product in the top 100 · 1 in the top 20

    1. #5 Professional-C Serum 20%Passes the check: buyers 4.8★
    Search Google for Obagi vitamin c serums
  13. #13same place as last weekTruSkinModels here: #30 Vitamin C Facial Serum · #45 Vitamin C Serum Pro 2026 · +3Last week #13 · 25 weeks in top 20

    TruSkin products here ?

    5 products in the top 100 · 0 in the top 20

    1. #30 Vitamin C Facial Serumbelow the top 20
    2. #45 Vitamin C Serum Pro 2026below the top 20
    3. #66 Vitamin C Super Serum (Advanced Formula)below the top 20
    4. #68 TruSkin Vitamin C Super Serum (Plus+)below the top 20
    5. #89 Vitamin C Serum Advanced Formulabelow the top 20
    Search Google for TruSkin vitamin c serums
  14. #14up 1 place since last weekMuradModels here: #29 Environmental Shield Essential-C Serum · #40 Vita-C Glycolic Brightening Serum · +1Last week #15 · 25 weeks in top 20

    Murad products here ?

    3 products in the top 100 · 0 in the top 20

    1. #29 Environmental Shield Essential-C Serumbelow the top 20
    2. #40 Vita-C Glycolic Brightening Serumbelow the top 20
    3. #85 Environmental Shield Vita-C Glycolic Brightening Serumbelow the top 20

    Where Murad is strong · top 20 ?

    Search Google for Murad vitamin c serums
  15. #15up 2 places since last weekMaeloveModels here: #17 Glow Maker Vitamin C Serum · #18 The Glow MakerLast week #17 · 14 weeks in top 20

    Maelove products here ?

    2 products in the top 100 · 2 in the top 20

    1. #17 Glow Maker Vitamin C Serumnot checked
    2. #18 The Glow Makernot checked
    Search Google for Maelove vitamin c serums
  16. #16up 4 places since last weekRevision SkincareModels here: #8 C+ Correcting Complex 30%Last week #20 · 11 weeks in top 20

    Revision Skincare products here ?

    1 product in the top 100 · 1 in the top 20

    1. #8 C+ Correcting Complex 30%not checked
    Search Google for Revision Skincare vitamin c serums
  17. #17up 1 place since last weekMedik8Models here: #16 C-Tetra Advanced · #35 C-Tetra Advanced 20% Vitamin C Gel-Serum · +1Last week #18 · 15 weeks in top 20

    Medik8 products here ?

    3 products in the top 100 · 1 in the top 20

    1. #16 C-Tetra Advancednot checked
    2. #35 C-Tetra Advanced 20% Vitamin C Gel-Serumbelow the top 20
    3. #76 C-Tetra Luxebelow the top 20

    Where Medik8 is strong · top 20 ?

    Search Google for Medik8 vitamin c serums
  18. #18down 2 places since last weekMad HippieModels here: #23 Mad Hippie Vitamin C SerumLast week #16 · 25 weeks in top 20

    Mad Hippie products here ?

    1 product in the top 100 · 0 in the top 20

    1. #23 Mad Hippie Vitamin C Serumbelow the top 20
    Search Google for Mad Hippie vitamin c serums
  19. #19down 5 places since last weekOle HenriksenModels here: #32 Banana Bright Vitamin C Serum · #59 Truth Serum · +1Last week #14 · 25 weeks in top 20

    Ole Henriksen products here ?

    3 products in the top 100 · 0 in the top 20

    1. #32 Banana Bright Vitamin C Serumbelow the top 20
    2. #59 Truth Serumbelow the top 20
    3. #78 Banana Bright Vitamin C Serum (v2)below the top 20
    Search Google for Ole Henriksen vitamin c serums
  20. #20down 1 place since last weekAllies of SkinModels here: #38 35% Vitamin C+ Perfecting Serum · #42 20% Vitamin C Brighten + Firm SerumLast week #19 · 8 weeks in top 20

    Allies of Skin products here ?

    2 products in the top 100 · 0 in the top 20

    1. #38 35% Vitamin C+ Perfecting Serumbelow the top 20
    2. #42 20% Vitamin C Brighten + Firm Serumbelow the top 20

    Where Allies of Skin is strong · top 20 ?

    Search Google for Allies of Skin vitamin c serums
Show places 21–100Hide places 21–100
  1. #21Tatchalast wk #23 10 wks in top 20
  2. #22Biossancelast wk #22 13 wks in top 20
  3. #23Dr. Dennis Grosslast wk #21 3 wks in top 20
  4. #24SkinBetterlast wk #24 2 wks in top 20
  5. #25SkinMedicalast wk #28 0 wks in top 20
  6. #26Summer Fridayslast wk #25 1 wk in top 20
  7. #27Geek & Gorgeouslast wk #27 0 wks in top 20
  8. #28Prequellast wk #35 0 wks in top 20
  9. #29Herbivorelast wk #33 0 wks in top 20
  10. #30Youth To The Peoplelast wk #26 4 wks in top 20
  11. #31BeautyStatlast wk #30 1 wk in top 20
  12. #32Peach & Lilylast wk #32 0 wks in top 20
  13. #33RoClast wk #36 2 wks in top 20
  14. #34Good Moleculeslast wk #38 0 wks in top 20
  15. #35CosRXlast wk #29 2 wks in top 20
  16. #36Glow Recipelast wk #31 0 wks in top 20
  17. #37Freshlast wk #43 0 wks in top 20
  18. #38Dermalogicalast wk #39 0 wks in top 20
  19. #39Skinfixlast wk #41 0 wks in top 20
  20. #40Neutrogenalast wk #40 6 wks in top 20
  21. #41Olaylast wk #37 1 wk in top 20
  22. #42Klairslast wk #47 0 wks in top 20
  23. #43L'Oréal Parislast wk #45 3 wks in top 20
  24. #44Beauty of Joseonlast wk #44 0 wks in top 20
  25. #45Peter Thomas Rothlast wk #34 5 wks in top 20
  26. #46The Inkey Listlast wk #46 0 wks in top 20
  27. #47Goodallast wk #57 0 wks in top 20
  28. #48Cliniquelast wk #51 0 wks in top 20
  29. #49gooplast wk #49 0 wks in top 20
  30. #50Lancômelast wk #48 0 wks in top 20
  31. #51Laneigelast wk — 0 wks in top 20
  32. #52iS Clinicallast wk #42 0 wks in top 20
  33. #53Alastinlast wk #52 0 wks in top 20
  34. #54Glossierlast wk #50 0 wks in top 20
  35. #55Garnierlast wk #56 0 wks in top 20
  36. #56Bubblelast wk #54 0 wks in top 20
  37. #57DRMTLGYlast wk #55 0 wks in top 20
  38. #58Alpyn Beautylast wk #62 0 wks in top 20
  39. #59e.l.f. SKINlast wk #59 0 wks in top 20
  40. #60SeoulCeuticalslast wk #60 0 wks in top 20
  41. #61cocokindlast wk #83 0 wks in top 20
  42. #62Perricone MDlast wk #66 0 wks in top 20
  43. #63StriVectinlast wk #65 0 wks in top 20
  44. #64E.L.F. Cosmeticslast wk #64 0 wks in top 20
  45. #65Innisfreelast wk #69 0 wks in top 20
  46. #66E.L.Flast wk #53 0 wks in top 20
  47. #67Estée Lauderlast wk #67 0 wks in top 20
  48. #68Avenelast wk #68 0 wks in top 20
  49. #69Eucerinlast wk #70 0 wks in top 20
  50. #70Ren Clean Skincarelast wk #71 0 wks in top 20
  51. #71Tata Harperlast wk #58 0 wks in top 20
  52. #72Rodan + Fieldslast wk #73 0 wks in top 20
  53. #73Vanicreamlast wk #91 0 wks in top 20
  54. #74Caudalielast wk #74 0 wks in top 20
  55. #75Versedlast wk #63 0 wks in top 20
  56. #76Shiseidolast wk #75 0 wks in top 20
  57. #77Korreslast wk #76 0 wks in top 20
  58. #78Tower 28 Beautylast wk #77 0 wks in top 20
  59. #79Mario Badesculast wk #79 0 wks in top 20
  60. #80Derma Elast wk — 0 wks in top 20
  61. #81Alastin Skincarelast wk #81 0 wks in top 20
  62. #82Skinlast wk #82 0 wks in top 20
  63. #83Exuviancelast wk — 0 wks in top 20
  64. #84Diorlast wk #84 0 wks in top 20
  65. #85Dr. Althealast wk — 0 wks in top 20
  66. #86Eva Naturalslast wk — 0 wks in top 20
  67. #87IOPElast wk — 0 wks in top 20
  68. #88medicubelast wk — 0 wks in top 20
  69. #89Pixilast wk — 0 wks in top 20
  70. #90Tower 28last wk — 0 wks in top 20
  71. #91Blisslast wk #92 0 wks in top 20
  72. #92Alpha-Hlast wk #85 0 wks in top 20
  73. #93Aesoplast wk #93 0 wks in top 20
  74. #94IT Cosmeticslast wk #94 0 wks in top 20
  75. #95Farmacylast wk #87 0 wks in top 20
  76. #96Koparilast wk #88 0 wks in top 20
  77. #97Clarinslast wk #95 0 wks in top 20
  78. #98Isle of Paradiselast wk #96 0 wks in top 20
  79. #99Chanellast wk #98 0 wks in top 20
  80. #100Estee Lauderlast wk #86 0 wks in top 20

The monthly check covers products; a brand is marked “Passes the check” only when its products here pass. See the product check → ?

The AI panel ?

Where the AIs disagree.

Each AI’s place for the top 10, in its own answer this week. Rows in chart order; an empty cell: not named this week.well above the other AIs well below not named this week ?
Place on this chartProductChatGPTClaudeGeminiAI ModeGrokPerplexityNamed by
#120% Vitamin C + E Ferulic Acid Serum11, well below the others2, well above the others754/6
#2C15 Super Booster33234/6
#3C-Firma Fresh Day Serum444517, well below the others5/6
#4C.E.O. 15% Vitamin C Brightening Serum524, well below the others684/6
#5Professional-C Serum 20%69, well below the others2, well above the others3/6
#6Vitamin C Complex Serum91193/6
#7Ascorbyl Glucoside Solution 12%12124, well above the others3/6
#8C+ Correcting Complex 30%7821, well below the others74/6
#9C E Ferulic with 15% L-Ascorbic Acid112/6
#10C E Ferulic112/6

Further down: Perplexity’s #1 C E Ferulic (Next-Generation Formula) (#51 on this chart)

The AI panel ?

Where the AIs disagree.

Each AI’s place for the top 10 brands: where it put the brand’s highest-placed product this week. Rows in chart order; an empty cell: not named this week.well above the other AIs well below not named this week ?
Place on this chartBrandChatGPTClaudeGeminiAI ModeGrokPerplexityNamed by
#1SkinCeuticals111115/6
#2Paula's Choice332365/6
#3La Roche-Posay135, well above the others122, well above the others145/6
#4Timeless112754/6
#5The Ordinary1212744/6
#6Sunday Riley524, well below the others3, well above the others685/6
#7Drunk Elephant444517, well below the others5/6
#8Vichy14, well below the others6, well above the others9821, well below the others5/6
#9Naturium911894/6
#10CeraVe611153/6

The monthly check · October 2026 ?

Where people disagree with AI.

13 of the top 20 checked

  1. SkinCeuticals C E Ferulic with 15% L-Ascorbic AcidFails the checkAI saysChart place#9named by 2 of 6People sayVideo reviews2.3/52 videos12
  2. La Roche-Posay Pure Vitamin C10 SerumFails the checkAI saysChart place#11named by 2 of 6People sayBuyers4.4/510,994 ratingsVideo reviews2.3/53 videos123Press4 of 5outlets recommend it
  3. Naturium Vitamin C Complex SerumPeople disagreeAI saysIts order6thof 13 checked · #6 in the chartPeople sayTheir order11thof 13 checked · by buyer ratings and video reviewsBuyers4.4/52,452 ratingsVideo reviews3.0/53 videos123Press3 of 5outlets recommend it
  4. Timeless 20% Vitamin C + E Ferulic Acid SerumPasses the checkAI saysChart place#1named by 4 of 6People sayBuyers4.8/517,753 ratings
  5. Sunday Riley C.E.O. 15% Vitamin C Brightening SerumPasses the checkAI saysChart place#4named by 4 of 6People sayBuyers4.3/512,121 ratingsVideo reviews4.3/52 videos12Press2 of 3outlets recommend it

See all checked products in the chart ↓ ?

Reviews by people · YouTube and TikTok ?

The reviews behind the chart.

36 review videos · one shown per product

4 more reviewsFewer reviews

Short clips TikTok

1 clips · 1.9K views

The data behind this chart ?

What this ranking stands on.

From the AI panel 139 AI answers over 28 weeks from 6 assistants

From people

  • Buyer ratings248,705
  • Review videos50
  • Owner threads53
  • Press outlets15
  • Recall checks28

Before you buy

Questions buyers ask.

  • Who is #1 for “Best Vitamin C Serums”, and for how long?

    Timeless 20% Vitamin C + E Ferulic Acid Serum is the #1 product this week, and has been #1 for 3 of the last 25 weeks. SkinCeuticals is the #1 brand, #1 for 25 of those weeks.

  • What changed on this chart in the last four weeks?

    7 of the top 20 products were not in the top 20 four weeks ago. The #1 then was Paula's Choice C15 Super Booster; it is #2 now. Among brands, 3 new names joined the top 20.

  • Do buyers, reviewers, owners and the press agree with the AI?

    13 of the top 20 were checked in October 2026: 2 fail the check, and people place 1 much lower than the AI does. 3 pass the check: people back them.

Data as of November 2 ?

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New #1s, debuts and the picks that fail the check, from every chart. We will write only when there is news.