15% Vitamin C and EGF SerumvsThe Vitamin C 23 Serum
Products · full comparison

15% Vitamin C and EGF Serum vs The Vitamin C 23 Serum

data as of July 6 · updated weekly

How these two compare on everything we measure — where the AIs rank them, what reviewers and buyers say, and how they price. The differences are the point — they decide which one is yours.

15% Vitamin C and EGF Serum
by The Inkey List · Vitamin C and EGF brightening serum
AI rank #18.5 fused across 12 questions in Skincare↑9$15–$26
Reviewers
/5
Buyers
4.3/5
vs
The Vitamin C 23 Serum
by CosRX · Vitamin C brightening serum
AI rank #23.5 fused across 12 questions in Skincare↑1$25–$26
Reviewers
/5
Buyers
4.8/5

Side by side

Every signal we hold, on one shared scale. The leading side is lit — and where the AI panel and the reviewers pull apart, the row says so.?

#18.5↑9
AI rankcombined avg · lower is betterfused across 12 questions in Skincare
#23.5↑1
Reviewersout of 5
4.3
BuyersGoogle rating
4.8
$15–$26
Street pricelower is cheaper
$25–$26
How this is made

Built from what 2 AI models (Perplexity · ChatGPT) recommend for real buyer questions, layered with reviewer test summaries, Google buyer ratings, street prices and press. The short answer and verdict are derived from where those signals diverge — not written by hand for either product.

Independent — not a vendor, not advertising, not a paid review. How we score →

01

How the AIs rank them

2 models rank both products. Here’s each model’s pick (lower rank = higher).?

Perplexity
15% Vitamin C and EGF Serum
#18
The Vitamin C 23 Serum
#19
ChatGPT
15% Vitamin C and EGF Serum
#19
The Vitamin C 23 Serum
#28
02

Which is better for what

Across the buyer-questions both appear in, who the AI panel ranks higher — and the widest gaps.?

Best Vitamin C Serums 15% Vitamin C and EGF Serum by 1#18 vs #19
Across 1 shared questions: 15% Vitamin C and EGF Serum higher in 1 · The Vitamin C 23 Serum in 0
Showing the 1 widest gaps
03

Critics & buyers

The human jury in one chapter — what the video reviewers score and say, the reviews behind it, and how Google buyers rate them.

What buyers say

Aggregated Google Shopping ratings — the score, the aspects owners rate, and a real quote.?

4.3
3,277 ratings
Brightening & skin tone evenness4.2
Texture & absorption4.1
Product stability & oxidation2.8
Packaging & leakage2.5
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. (not sp amb9545 · sephora.com
Google ratings
4.8
3,029 ratings
Dark spots & discoloration4.9
Skin texture & smoothness4.8
Hydration & glow4.7
Gentleness & irritation4.8
After pregnancy and post-partum wrecked my skin, I needed something to help with dark spots, redness, rough texture, and dullness. I was using a different vit C serum that didn't seem to help. Three days of using this and my skin already started looking amazing! Discoloration is improved and my skin feels and looks incredibly smooth and bouncy. It did tingle slightly the first few uses, so it may Lorisa · ulta.com
04

How they price

Street price across retailers, the tier each lands in, and how it’s moved.?

$15–$26
across 3 retailers
tier Mid-range
current street price
current model
$25–$26
across 4 retailers
tier Mid-range
current street price
current model
05

Can you trust the claims

Each maker’s marketing weighed against independent tests — how many claims hold up, and the weakest one.?

marketing claims not checked yet
The Vitamin C 23 SerumThe Vitamin C 23 Serum
50
Honest on visible results, overstates consistency and magnitude
0 hold up2 mixed0 overstated
Weakest claim
PromiseThe high content pure vitamin C provides excellent anti-oxidation care, skin brightening, and anti-aging
RealityVisible results in days, but subtle for some users
06

The verdict: which to buy

Our read of everything above — who leads each point, and who each is for.

15% Vitamin C and EGF Serum
AI panel rank
The Vitamin C 23 Serum
15% Vitamin C and EGF Serum
Reviewer score
The Vitamin C 23 Serum
15% Vitamin C and EGF Serum
Buyer rating
The Vitamin C 23 Serum
15% Vitamin C and EGF Serum
Lower price
The Vitamin C 23 Serum

Net: 15% Vitamin C and EGF Serum leads 2 of 4 · The Vitamin C 23 Serum 1.

So which one?

Each leads on different points — pick the one strong where you shop.

We don’t crown a winner. Both are strong; the differences above decide it for your use. Where a signal is missing, we leave it blank rather than guess.

as of July 6 · 1 shared buyer questions?

07

Common questions

The questions people ask comparing these two — answered from the data above.

QIs 15% Vitamin C and EGF Serum or The Vitamin C 23 Serum better overall?

The AI panel ranks 15% Vitamin C and EGF Serum higher (avg #18.5 fused across 12 questions in Skincare vs #23.5), but it’s close — reviewers and buyers split differently.

QWhich one is cheaper?

15% Vitamin C and EGF Serum$15–$26 vs $25–$26 across retailers.

QHow do buyers rate them?

Google buyers give 15% Vitamin C and EGF Serum 4.3 and The Vitamin C 23 Serum 4.8 out of 5.