Beauty & Personal Care › Skincare
15% Vitamin C and EGF Serum
Vitamin C and EGF brightening serum
Mid-range · middle third of skincare
Quick take
In short: what each side says
AI panel · Buyers — each opened up in full further down ↓
Best on Gemini (avg #15.0), weakest on Perplexity (#22.0)
Owners praise the lightweight texture and brightening results for the price, but are divided by inconsistent product stability, leaky packaging, and concerns that ascorbyl glucoside is a weaker…
The juries split — Divided. Check both sides before you commit.
Main competitors
Top rivals in Skincare.
by La Roche-Posay
Lightweight face moisturizer for sensitive skin
The verdict
What the panel makes of it.
The Inkey List makes this vitamin C serum. It comes in liquid form. Fifteen percent L-ascorbic acid does the work here. EGF, or epidermal growth factor, joins the formula. People use it for dull skin and fine lines. The serum brightens and firms the face over weeks. Shoppers track this product across multiple platforms each week.
Act one
What the machines think.
Several AI models read the category and place this product — model by model, list by list, over time.
Model by model?
How each AI sees it.
Best on Gemini (avg #15.0), weakest on Perplexity (#22.0) Averaging across the AI panel, 15% Vitamin C and EGF Serum sits around #18.5 this snapshot.
Grok
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Didn’t rank 15% Vitamin C and EGF Serum this snapshot.
GPT
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Didn’t rank 15% Vitamin C and EGF Serum this snapshot.
AI Mode
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Didn’t rank 15% Vitamin C and EGF Serum this snapshot.
Claude
Didn’t rank 15% Vitamin C and EGF Serum this snapshot.
Rank trajectory?
Weeks of movement.
Act two · ★ new
What the people say.
The same product, judged by the owners who bought and filmed it — what they praise, what they knock, who it's for.
What buyers say?
What Google knows about it.
Beyond the video critics, Google pools 3,277 buyer ratings of the 15% Vitamin C and EGF Serum from across retailers — a far wider, if blunter, jury. Here’s the shape of that opinion.
3,277 ratings · 7 written
across 3 retailers
What owners single out
Reviewers flagged the packaging as poor and difficult to use, which directly aligns with buyers' widespread complaints about leakage and oxidation issues compromising the product's shelf life.
In their words
“great vitamin C serum for the price! Gone through 2 bottles now (each bottle lasts about 6 months for me, typically just do one pump in the morning every day or so). Pump bottles also keep vitamin c serums more stable than dropper bottles too so I'm happy with that. I have fairly sensitive, combination skin with some breakouts too and have never noticed any worsening when I use this serum.”
amb9545 · verified purchase · sephora.com
“I would love to give this 5 stars, since I’ve been using it for years, and when it does work it works well for my HP, acne, redness, etc. however it’s really hit or miss. Half of all the bottles I’ve bought have been already oxidized and sticky on the first use. When I get a good bottle the serum is clear and has a slight almost unnoticeable sweet smell and glides in and absorbs so smoothly.”
ravenshaw · verified purchase · sephora.com
as of June 29 · 3277 buyer ratings?
Act three · ★ new
Do they agree?
Put the machine's rank and the owners' score in one frame, settle it with a verdict, and answer the only question that matters: should you buy it?
The disagreement
Where the juries actually split.
Gemini
#15avg rank
ranks it highest of the panel
Perplexity
#22avg rank
the most sceptical model
owners 4.3★ sits outside the models' split.
owners 4.3★Per-model average ranks from this week's panel?
Frequent rivals?
What it competes against.
- C+ Correcting Complex 30%Revision SkincareThe Inkey List leads 1–0 · 1 sharedRead
- Stroke of Brilliance Brightening SerumVersedThe Inkey List leads 1–0 · 1 sharedRead
- Vitamin C Ester Brightening SerumPerricone MDThe Inkey List leads 1–0 · 1 sharedRead
- Ascorbyl Glucoside Solution 12%The OrdinaryThe Inkey List leads 1–0 · 1 sharedRead
- Potent-C Power SerumPeter Thomas RothThe Inkey List leads 1–0 · 1 sharedRead
- Violet-C Brightening SerumTatchaThe Inkey List leads 1–0 · 1 sharedRead
- 15% Vitamin C + Clean Caffeine Energy SerumYouth To The PeopleThe Inkey List leads 1–0 · 1 sharedRead
Alternatives by price · Same field?
Same field, less money.
The recap
Where it stands today.
- PositionBest rank #15 across 1 intent tracked (no change vs last snapshot).
- FootprintStrongest in Best Vitamin C Serums (#15).
- TraitsMost often described as “brightening” (2 mentions).
- Closest rivalC+ Correcting Complex 30% (1–0 across 1 shared intent).
- MakerBy The Inkey List — see how it ranks across other intents on its brand profile.
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