All scans / Serums / La Roche-Posay Pure Vitamin C10 Serum
La Roche-Posay Pure Vitamin C10 Serum ingredients: is it worth it?
A legitimate vitamin C serum undermined by a high-irritation base and fragrance.
A legitimate vitamin C serum undermined by a high-irritation base and fragrance.
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The efficacy score is 4.2/5: 10% L-ascorbic acid is a genuinely evidence-backed brightening and antioxidant active, supported by glycerin, two hyaluronic-acid forms, tocopherol, and a small amount of salicylic acid; however, the formula does not disclose its pH, and the very high placement of denatured alcohol, fragrance, and salicylic acid creates avoidable irritation risk. The formula also lacks the classic vitamin C–vitamin E–ferulic-acid antioxidant system, so it falls short of a clinically optimized antioxidant serum.
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DemythSkin rates La Roche-Posay Pure Vitamin C10 Serum 4.2/5 for efficacy and 3.4/5 for safety.
CONTAINS COMMON SENSITISERS⌄
Fragrance components and essential oils that more often cause reactions in sensitive skin: Parfum/Fragrance. Most people tolerate them; patch test if your skin reacts easily.
ACTIVE INGREDIENTS BY TIER
Gold Standards
High clinical proof | Skin-transformativeReliable
Proven resultsPotent
Developing evidenceOverhyped | Marketing
Hype | Limited dataDocumented Irritants
Evidence-backed flagFORMULATION BASE (9)⌄
FULL INGREDIENT LIST⌄
Aqua/Water, Ascorbic Acid, Cyclohexasiloxane, Glycerin, Alcohol Denat., Potassium Hydroxide, Polymethylsilsesquioxane, Polysilicone-11, Dimethicone, Propylene Glycol, Pentaerythrityl Tetraethylhexanoate, C13-14 Isoparaffin, Peg-20 Methyl Glucose Sesquistearate, Sodium Hyaluronate, Adenosine, Poloxamer 338, Ammonium Polyacryloyldimethyl Taurate, Disodium Edta, Hydrolyzed Hyaluronic Acid, Caprylyl Glycol, Laureth-7, Acetyl Dipeptide-1 Cetyl Ester, Xanthan Gum, Toluene Sulfonic Acid, Polyacrylamide, Tocopherol, Salicylic Acid, Parfum/Fragrance ( Fil B224007/0). For the latest information, it is recommended to review the ingredient list printed on the packaging of the product prior to usage or consumption. Postal Address Gateway Central White City Place, 187 Wood Ln, London W12 7SA Electronic Address consumercare
WHAT EACH INGREDIENT DOES (24)⌄
- Aqua/Water
- solvent and formula base
- Ascorbic Acid
- antioxidant and brightening active
- Cyclohexasiloxane
- volatile silicone emollient
- Glycerin
- humectant and water binder
- Alcohol Denat.
- solvent and sensory modifier
- Potassium Hydroxide
- pH adjuster
- Polymethylsilsesquioxane
- texture and optical modifier
- Polysilicone-11
- film former and texture modifier
- Dimethicone
- silicone emollient and protectant
- Propylene Glycol
- humectant and solvent
- Pentaerythrityl Tetraethylhexanoate
- emollient and skin conditioner
- C13-14 Isoparaffin
- emollient and texture agent
- PEG-20 Methyl Glucose Sesquistearate
- emulsifier and texture agent
- Sodium Hyaluronate
- humectant and film former
- Adenosine
- skin-conditioning active
- Poloxamer 338
- solubilizer and emulsifier
- Ammonium Polyacryloyldimethyl Taurate
- thickener and stabilizer
- Disodium EDTA
- chelating agent
- Hydrolyzed Hyaluronic Acid
- humectant and film former
- Caprylyl Glycol
- humectant and preservative booster
- Laureth-7
- emulsifier and solubilizer
- Acetyl Dipeptide-1 Cetyl Ester
- skin-conditioning peptide
- Xanthan Gum
- thickener and stabilizer
- Toluene Sulfonic Acid
- pH and formula adjuster
EXTERNAL CITATIONS
Ascorbic Acid: La Roche-Posay identifies the formula as containing 10% pure vitamin C for radiance, texture, and wrinkle concerns.
Salicylic Acid: La Roche-Posay describes the serum as combining pure vitamin C with salicylic acid.
Sodium Hyaluronate: Humectant hydration support is established by sodium hyaluronate and hydrolyzed hyaluronic acid in the supplied INCI.
DISCLAIMER: THIS ANALYSIS IS FOR INFORMATION ONLY. NOT MEDICAL ADVICE. AI-GENERATED DATA BASED ON PUBLICLY AVAILABLE INGREDIENT LISTS. VERIFY WITH A MEDICAL PROFESSIONAL.
La Roche-Posay Pure Vitamin C10 Serum: common questions
Is La Roche-Posay Pure Vitamin C10 Serum worth it?
La Roche-Posay Pure Vitamin C10 Serum scores 4.2 out of 5.0 for efficacy (Effective) and 3.4 out of 5.0 for safety (Some Risk) on DemythSkin's independent ingredient analysis. A legitimate vitamin C serum undermined by a high-irritation base and fragrance.
What are the key active ingredients in La Roche-Posay Pure Vitamin C10 Serum?
La Roche-Posay Pure Vitamin C10 Serum contains these gold-standard actives with strong clinical evidence: Ascorbic Acid, Salicylic Acid.
Does La Roche-Posay Pure Vitamin C10 Serum contain fragrance or known irritants?
DemythSkin flags these ingredients in La Roche-Posay Pure Vitamin C10 Serum as documented irritants: Alcohol Denat., Parfum/Fragrance. This product does contain fragrance.
How is La Roche-Posay Pure Vitamin C10 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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