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La Roche-Posay Mela B3 Dark Spot Serum ingredients: is it worth it?
Strong brightening formula, but the fragrance and weak retinoid keep this from being a truly elite dark-spot treatment.
Strong brightening formula, but the fragrance and weak retinoid keep this from being a truly elite dark-spot treatment.
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The efficacy score is driven by niacinamide in the third position, the dedicated Melasyl molecule, glycerin, and a low-position LHA derivative; the concentration of Melasyl and capryloyl salicylic acid is undisclosed, retinyl palmitate is a weak retinoid derivative, and no optimized acid pH is provided. The formula should help discoloration and hydration, but it is not a maximal-strength treatment.
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DemythSkin rates La Roche-Posay Mela B3 Dark Spot Serum 3.9/5 for efficacy and 3.9/5 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 (12)⌄
FULL INGREDIENT LIST⌄
Aqua/Water/Eau, Dimethicone, Niacinamide, Glycerin, Propylene Glycol, Polysilicone-11, Silica, Bis-Peg/Ppg-16/16 Peg/Ppg-16/16 Dimethicone, Cystoseira Tamariscifolia Extract, 2-Mercaptonicotinoyl Glycine, Peg-20 Methyl Glucose Sesquistearate, Sodium Hyaluronate, Sodium Hydroxide, Sodium Thiosulfate, Carnosine, Poloxamer 338, Ammonium Polyacryloyldimethyl Taurate, Dipotassium Glycyrrhizate, Caprylic/Capric Triglyceride, Capryloyl Salicylic Acid, Caprylyl Glycol, Citric Acid, Trisodium Ethylenediamine Disuccinate, Xanthan Gum, Pentylene Glycol, Octyldodecanol, Retinyl Palmitate, Tocopherol, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Phenoxyethanol, Ci 17200, Red 33, Parfum, Fragrance.
WHAT EACH INGREDIENT DOES (24)⌄
- Aqua/Water/Eau
- Formula solvent
- Dimethicone
- Silicone emollient
- Niacinamide
- Brightening barrier-support ingredient
- Glycerin
- Humectant moisturizer
- Propylene Glycol
- Humectant solvent
- Polysilicone-11
- Film-forming texture agent
- Silica
- Oil-absorbing texture modifier
- Bis-Peg/Ppg-16/16 Peg/Ppg-16/16 Dimethicone
- Silicone emulsifier
- Cystoseira Tamariscifolia Extract
- Marine botanical extract
- 2-Mercaptonicotinoyl Glycine
- Melanin-pathway treatment molecule
- Peg-20 Methyl Glucose Sesquistearate
- Emulsifying surfactant
- Sodium Hyaluronate
- Humectant water binder
- Sodium Hydroxide
- pH adjuster
- Sodium Thiosulfate
- Stabilizing reducing agent
- Carnosine
- Antioxidant support ingredient
- Poloxamer 338
- Solubilizing surfactant
- Ammonium Polyacryloyldimethyl Taurate
- Rheology modifying polymer
- Dipotassium Glycyrrhizate
- Soothing licorice derivative
- Caprylic/Capric Triglyceride
- Light emollient
- Capryloyl Salicylic Acid
- LHA exfoliating derivative
- Caprylyl Glycol
- Humectant preservative booster
- Citric Acid
- pH adjusting acid
- Trisodium Ethylenediamine Disuccinate
- Chelating stabilizer
- Xanthan Gum
- Thickening polymer
EXTERNAL CITATIONS
Niacinamide: La Roche-Posay identifies 10% niacinamide as a key active for discoloration and barrier support.
2-Mercaptonicotinoyl Glycine: La Roche-Posay identifies 2-Mercaptonicotinoyl Glycine as Melasyl, a proprietary melanin-pathway molecule.
Capryloyl Salicylic Acid: La Roche-Posay describes LHA as a salicylic-acid derivative used for surface renewal and smoothing.
Retinyl Palmitate: La Roche-Posay describes retinyl palmitate as a retinoid derivative associated with cell renewal.
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 that scores as high or higher
A different formula for the same concern (brightening) that scores at least as high on both efficacy and safety.
La Roche-Posay Mela B3 Dark Spot Serum: common questions
Is La Roche-Posay Mela B3 Dark Spot Serum worth it?
La Roche-Posay Mela B3 Dark Spot Serum scores 3.9 out of 5.0 for efficacy (Effective) and 3.9 out of 5.0 for safety (Gentle) on DemythSkin's independent ingredient analysis. Strong brightening formula, but the fragrance and weak retinoid keep this from being a truly elite dark-spot treatment.
What are the key active ingredients in La Roche-Posay Mela B3 Dark Spot Serum?
La Roche-Posay Mela B3 Dark Spot Serum contains no gold-standard actives. Its formula is built on supporting and base ingredients rather than clinically transformative actives.
Does La Roche-Posay Mela B3 Dark Spot Serum contain fragrance or known irritants?
DemythSkin flags these ingredients in La Roche-Posay Mela B3 Dark Spot Serum as documented irritants: Parfum, Fragrance. This product does contain fragrance.
How is La Roche-Posay Mela B3 Dark Spot 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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