All scans / Serums / Geek & Gorgeous C-Glow 15% Vitamin C Serum

[ DEMYTHSKIN_SCORE · SERUM ]

Geek & Gorgeous C-Glow 15% Vitamin C Serum ingredients: is it worth it?

This is a clinically strong, no-frills vitamin C workhorse with excellent chemistry and zero fluff.

[ SCAN_RESULT ]
Geek & Gorgeous C-Glow 15% Vitamin C Serum
— Geek & Gorgeous
C-Glow
Brightening
Does it work?
4.3/ 5.0
Effective
Is it safe?
4.5/ 5.0
Very Gentle
THE VERDICT[$] Great Value$14.90

This is a clinically strong, no-frills vitamin C workhorse with excellent chemistry and zero fluff.

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The efficacy score is high because it uses 15% pure L-ascorbic acid at the sweet-spot concentration, supported by ferulic acid and vitamin E in a classic antioxidant trio, plus dimethyl isosorbide to improve penetration and stability—there are no barrier or hydrating extras, but as a focused treatment serum for antioxidant protection and brightening, the formulation is technically optimal for its purpose.

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DemythSkin rates Geek & Gorgeous C-Glow 15% Vitamin C Serum 4.3/5 for efficacy and 4.5/5 for safety.

GRADED AS SERUM — BRIGHTENING

ACTIVE INGREDIENTS BY TIER

◄ DRIVES RESULTSWORKS AGAINST YOU ►
Doing the work · 4 ingredients
S

Gold Standards

High clinical proof | Skin-transformative
(L-)Ascorbic Acid
A

Reliable

Proven results
Ferulic AcidTocopherol
B

Potent

Developing evidence
Dimethyl Isosorbide
Not doing the work · 0 ingredients
C

Overhyped | Marketing

Hype | Limited data
None detected
D

Documented Irritants

Evidence-backed flag
None detected
FORMULATION BASE (6)⌄
Aqua (Water)Butylene GlycolPEG/PPG/Polybutylene Glycol-8/5/3 GlycerinPhenoxyethanolEthylhexylglycerinSodium Hydroxide
FULL INGREDIENT LIST⌄

Aqua (Water), (L-)Ascorbic Acid, Dimethyl Isosorbide, Butylene Glycol, PEG/PPG/Polybutylene Glycol-8/5/3 Glycerin, Ferulic Acid, Tocopherol, Phenoxyethanol, Ethylhexylglycerin, Sodium Hydroxide

WHAT EACH INGREDIENT DOES (10)⌄
Aqua (Water)
Solvent base
(L-)Ascorbic Acid
Antioxidant, brightening active
Dimethyl Isosorbide
Solvent, penetration enhancer
Butylene Glycol
Humectant and solvent
PEG/PPG/Polybutylene Glycol-8/5/3 Glycerin
Humectant, texture modifier
Ferulic Acid
Antioxidant, stabilizer
Tocopherol
Antioxidant (vitamin E)
Phenoxyethanol
Preservative
Ethylhexylglycerin
Preservative booster
Sodium Hydroxide
pH adjuster

EXTERNAL CITATIONS

(L-)Ascorbic Acid: 15–20% L-ascorbic acid at pH ~3 is widely used in clinical studies to improve photodamage and hyperpigmentation and increase collagen synthesis.

Ferulic Acid: Combination of L-ascorbic acid, ferulic acid, and tocopherol has been shown to increase photoprotective and antioxidant effects compared with vitamin C alone.

Dimethyl Isosorbide: Dimethyl isosorbide is used to enhance solubility and dermal penetration of actives, improving delivery of L-ascorbic acid in cosmetic formulations.

DISCLAIMER: THIS ANALYSIS IS FOR INFORMATION ONLY. NOT MEDICAL ADVICE. AI-GENERATED DATA BASED ON PUBLICLY AVAILABLE INGREDIENT LISTS. VERIFY WITH A MEDICAL PROFESSIONAL.

[ 01 · CHEAPER_FORMULA_DUPE ]

A cheaper serum with a close formula

51% formula match, by ingredient list. Labels don't state amounts, so strengths may differ.

Trader Joe's Vitamin C Serum
Trader Joe's
Vitamin C Serum
4.6 4.2 efficacy · safety
$9.99
SAVE $5
See the score →
See all 2 formula dupes →
[ 02 · FAQ ]

Geek & Gorgeous C-Glow 15% Vitamin C Serum: common questions

Is Geek & Gorgeous C-Glow 15% Vitamin C Serum worth it?

Geek & Gorgeous C-Glow 15% Vitamin C Serum scores 4.3 out of 5.0 for efficacy (Effective) and 4.5 out of 5.0 for safety (Very Gentle) on DemythSkin's independent ingredient analysis. This is a clinically strong, no-frills vitamin C workhorse with excellent chemistry and zero fluff.

What are the key active ingredients in Geek & Gorgeous C-Glow 15% Vitamin C Serum?

Geek & Gorgeous C-Glow 15% Vitamin C Serum contains these gold-standard actives with strong clinical evidence: (L-)Ascorbic Acid.

Does Geek & Gorgeous C-Glow 15% Vitamin C Serum contain fragrance or known irritants?

DemythSkin's analysis found no flagged irritants in Geek & Gorgeous C-Glow 15% Vitamin C Serum. It scores 4.5 out of 5.0 for safety.

How is Geek & Gorgeous C-Glow 15% Vitamin C Serum scored?

DemythSkin grades every product on two independent scores: efficacy (whether the ingredients have clinical evidence of working) and safety (irritation and sensitisation risk). Ingredients are graded S through D against a database of over 3,000 compounds. Brand and price are not part of the score, and no brand pays for one.

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