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

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.
ACTIVE INGREDIENTS BY TIER
Gold Standards
High clinical proof | Skin-transformativeReliable
Proven resultsPotent
Developing evidenceOverhyped | Marketing
Hype | Limited dataDocumented Irritants
Evidence-backed flagFORMULATION BASE (6)⌄
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.
A cheaper serum with a close formula
51% formula match, by ingredient list. Labels don't state amounts, so strengths may differ.

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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