La Roche-Posay
Mela B3 Dark Spot Serum With Melasyl™ + NiacinamideA serum built around Niacinamide and Vitamin E, for hydration and barrier repair.
A serum built around Niacinamide and Hyaluronic acid, for barrier repair and hydration.
Brand price
Not recorded · brand's site
Brand price
USD 60.99 · checked 25 Sept 2026 · brand's site
At a Glance
They come out differently on Fragrance-free, Pore-clogger-free and Cruelty-free; those rows are shaded. Tap any answer to see why.
Key Ingredients
Hyaluronic acid1
Hyaluronic acid and its salts; a humectant that binds water to the skin.
Benefits
Hydrating8
Boosts hydration and relieves dry, tight skin.
Butylene Glycol, Dimethicone, Glycerin, Methyl Gluceth-20, Panthenol, Propanediol, Propylene Glycol, Sodium Hyaluronate
Barrier Repair7
Strengthens and restores the skin's natural barrier.
Caprylyl Glycol, Dimethicone, Glycerin, Isononyl Isononanoate, Niacinamide, Panthenol, Propylene Glycol
Hydrating7
Boosts hydration and relieves dry, tight skin.
Caprylic/Capric Triglyceride, Dimethicone, Dipotassium Glycyrrhizate, Glycerin, Propylene Glycol, Sodium Hyaluronate, Tocopherol
Barrier Repair9
Strengthens and restores the skin's natural barrier.
Bis-Peg/Ppg-16/16 Peg/Ppg-16/16 Dimethicone, Caprylic/Capric Triglyceride, Caprylyl Glycol, Dimethicone, Glycerin, Niacinamide, Octyldodecanol, Propylene Glycol, Tocopherol
Concerns
May Worsen Seborrheic Dermatitis4
May feed the yeast involved in seborrheic dermatitis.
Acrylates/Beheneth-25 Methacrylate Copolymer, Palmitoyl Tetrapeptide-94, Palmitoyl Tetrapeptide-95, Polysorbate 20
May Worsen Keratosis Pilaris1
May clog follicles or strip skin prone to keratosis pilaris.
May Worsen Seborrheic Dermatitis3
May feed the yeast involved in seborrheic dermatitis.
Octyldodecanol, PEG-20 Methyl Glucose Sesquistearate, Retinyl Palmitate
May Worsen Keratosis Pilaris2
May clog follicles or strip skin prone to keratosis pilaris.
May Worsen Irritation3
May cause stinging, redness or sensitivity.
Ingredients Side-by-side
Humectant
Emollient
Niacinamide (in both products)
Smoothing
0 / —
- Niacinamide
- Acne Fighting
- Barrier Repair
- Brightening
- Dark Spots
- Even Tone
- Oil Control
- Pore Refining
- Redness Reducing
Acrylates/Beheneth-25 Methacrylate Copolymer
Viscosity Controlling
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
Niacinamide (in both products)
Smoothing
0 / —
- Niacinamide
- Acne Fighting
- Barrier Repair
- Brightening
- Dark Spots
- Even Tone
- Oil Control
- Pore Refining
- Redness Reducing
Cystoseira Tamariscifolia Extract
Skin Conditioning
Skin Conditioning
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Aqua
Solvent
Dimethicone
Antifoaming, Skin Conditioning, Emollient, Skin Protecting
Dimethicone is a silicone.
Learn more about Dimethicone →Glycerin
Denaturant, Fragrance, Hair Conditioning, Humectant, Oral Care, Perfuming, Humectant, Skin Protecting, Solvent, Viscosity Controlling
Glycerin may be plant, synthetic or animal depending on the supplier.
Learn more about Glycerin →Polysilicone-11
Film Forming
Polysilicone-11 is a silicone.
Learn more about Polysilicone-11 →Niacinamide
Smoothing
Niacinamide is niacinamide.
Learn more about Niacinamide →Phenoxyethanol
Antimicrobial, Preservative
Phenoxyethanol is the aromatic ether alcohol that conforms to the formula:
Learn more about Phenoxyethanol →Silica
Abrasive, Absorbent, Anticaking, Bulking, Opacifying, Viscosity Controlling
Silicon dioxide
Learn more about Silica →Caprylyl Glycol
Deodorant, Hair Conditioning, Skin Conditioning, Emollient
Caprylyl Glycol is the diol that conforms to the formula
Learn more about Caprylyl Glycol →Xanthan Gum
Binding, Emulsion Stabilising, Gel Forming, Skin Conditioning, Cleansing, Emulsifying, Viscosity Controlling
Xanthan gum
Learn more about Xanthan Gum →Sodium Hyaluronate
Humectant, Skin Conditioning
Sodium Hyaluronate is a hyaluronic acid.
Learn more about Sodium Hyaluronate →
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