All scans / Serums / Dr. Brenner C Serum
Dr. Brenner C Serum ingredients: is it worth it?
This is a legitimately high-efficacy vitamin C serum with a no-frills but smartly constructed antioxidant base.

This is a legitimately high-efficacy vitamin C serum with a no-frills but smartly constructed antioxidant base.
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The efficacy score is high because it uses pure L-ascorbic acid in a classic synergistic system with vitamin E and ferulic acid, supported by solvents like ethoxydiglycol and propylene glycol that help keep vitamin C dissolved and active, plus humectants (glycerin, sodium hyaluronate, panthenol) that improve skin feel and tolerance; the main limitations are unknown exact concentration and pH, lack of additional stabilizing packaging info, and the presence of a surfactant-type helper (Laureth-23) that suggests a more functional, less elegant texture than premium comparators.
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DemythSkin rates Dr. Brenner C Serum 4.4/5 for efficacy and 4.3/5 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 (5)⌄
FULL INGREDIENT LIST⌄
Water, Ethoxydiglycol, L-Ascorbic Acid (Vitamin C), Propylene Glycol, Glycerin, Laureth-23, Tocopherol (Vitamin E), Sodium Hyaluronate (Hyaluronic Acid ), Ferulic Acid, Panthenol, Triethanolamine, Phenoxyethanol
WHAT EACH INGREDIENT DOES (12)⌄
- Water
- Solvent; base of formula
- Ethoxydiglycol
- Solvent; enhances solubility
- L-Ascorbic Acid (Vitamin C)
- Antioxidant and brightening active
- Propylene Glycol
- Humectant and solvent
- Glycerin
- Humectant; improves hydration
- Laureth-23
- Surfactant and solubilizer
- Tocopherol (Vitamin E)
- Antioxidant; supports formula stability
- Sodium Hyaluronate (Hyaluronic Acid)
- Humectant; water-binding agent
- Ferulic Acid
- Antioxidant; stabilizes vitamin C
- Panthenol
- Humectant and soothing agent
- Triethanolamine
- pH adjuster and buffering agent
- Phenoxyethanol
- Preservative to prevent microbial growth
EXTERNAL CITATIONS
L-Ascorbic Acid: Pinnell SR et al. Topical L-ascorbic acid: percutaneous absorption studies. Dermatol Surg. 2001;27(2):137–142.
L-Ascorbic Acid + Tocopherol + Ferulic Acid: Lin FH et al. Ferulic acid stabilizes a solution of vitamins C and E and doubles its photoprotection of skin. J Invest Dermatol. 2005;125(4):826–832.
Sodium Hyaluronate: Papakonstantinou E et al. Hyaluronic acid: A key molecule in skin aging. Dermatoendocrinol. 2012;4(3):253–258.
Panthenol: Proksch E et al. Topical use of dexpanthenol: a 70-year review. J Dermatolog Treat. 2017;28(8):766–773.
DISCLAIMER: THIS ANALYSIS IS FOR INFORMATION ONLY. NOT MEDICAL ADVICE. AI-GENERATED DATA BASED ON PUBLICLY AVAILABLE INGREDIENT LISTS. VERIFY WITH A MEDICAL PROFESSIONAL.
Dr. Brenner C Serum: common questions
Is Dr. Brenner C Serum worth it?
Dr. Brenner C Serum scores 4.4 out of 5.0 for efficacy (Effective) and 4.3 out of 5.0 for safety (Gentle) on DemythSkin's independent ingredient analysis. This is a legitimately high-efficacy vitamin C serum with a no-frills but smartly constructed antioxidant base.
What are the key active ingredients in Dr. Brenner C Serum?
Dr. Brenner C Serum contains these gold-standard actives with strong clinical evidence: L-Ascorbic Acid (Vitamin C).
Does Dr. Brenner C Serum contain fragrance or known irritants?
DemythSkin's analysis found no flagged irritants in Dr. Brenner C Serum. It scores 4.3 out of 5.0 for safety.
How is Dr. Brenner 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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