La Roche-Posay
Mela B3 Dark Spot Serum With Melasyl™ + NiacinamideA serum built around Niacinamide and Hyaluronic acid, for barrier repair and hydration.
A serum built around Niacinamide and Ceramide, for barrier repair and smoothing.
Brand price
USD 60.99 · checked 25 Sept 2026 · brand's site
Brand price
Not recorded · brand's site
At a Glance
They come out differently on Fragrance-free, Alcohol-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.
Fatty alcohol1
Waxy fatty alcohols used as emollients and thickeners; unrelated to drying alcohol.
Ceramide3
Skin-identical lipids that hold the barrier together.
Benefits
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
Hydrating8
Boosts hydration and relieves dry, tight skin.
Ceramide AP, Ceramide EOP, Ceramide NP, Dimethicone, Dimethiconol, Dipotassium Glycyrrhizate, Propanediol, Sodium Hyaluronate
Barrier Repair13
Strengthens and restores the skin's natural barrier.
Caprylyl Glycol, Ceramide AP, Ceramide EOP, Ceramide NP, Cetearyl Alcohol, Cetearyl Ethylhexanoate, Cholesterol, Dimethicone, Dimethiconol, Isopropyl Myristate, Lecithin, Niacinamide, Phytosphingosine
Concerns
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.
May Worsen Seborrheic Dermatitis12
May feed the yeast involved in seborrheic dermatitis.
Behentrimonium Methosulfate, Ceramide AP, Ceramide EOP, Ceramide NP, Cetearyl Alcohol, Cetearyl Ethylhexanoate, Hydrogenated Lecithin, Isopropyl Myristate, Lecithin, Phytosphingosine, Polysorbate 20, Sodium Lauroyl Lactylate
May Worsen Keratosis Pilaris2
May clog follicles or strip skin prone to keratosis pilaris.
Ingredients Side-by-side
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
Emollient
- 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
Ammonium Polyacryloyldimethyl Taurate (in both products)
Emulsion Stabilising
Emulsifying
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
Skin Conditioning
- Ceramide
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- Barrier Repair
- Hydrating
- May Worsen Seborrheic Dermatitis
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 →Niacinamide
Smoothing
Niacinamide is niacinamide.
Learn more about Niacinamide →Sodium Hyaluronate
Humectant, Skin Conditioning
Sodium Hyaluronate is a hyaluronic acid.
Learn more about Sodium Hyaluronate →Ammonium Polyacryloyldimethyl Taurate
Emulsion Stabilising, Viscosity Controlling
1-Propanesulfonic acid, 2-methyl-2-[(1-oxo-2-propenyl)amino]-, monoammonium salt, homopolymer
Learn more about Ammonium Polyacryloyldimethyl Taurate →Dipotassium Glycyrrhizate
Humectant, Skin Conditioning
.alpha.-d-Glucopyranosiduronic acid, (3.beta.,20.beta.)-20-carboxy-11-oxo-30-norolean-12-en-3-yl 2-O-.beta.-d-glucopyranuronosyl-, dipotassium salt
Learn more about Dipotassium Glycyrrhizate →Caprylyl Glycol
Deodorant, Hair Conditioning, Skin Conditioning, Emollient
Caprylyl Glycol is the diol that conforms to the formula
Learn more about Caprylyl Glycol →Citric Acid
Buffering, Chelating, Fragrance
Citric Acid is an AHA.
Learn more about Citric Acid →Trisodium Ethylenediamine Disuccinate
Chelating
L-Aspartic acid, N,N'-1,2-ethanediylbis-, trisodium salt
Learn more about Trisodium Ethylenediamine Disuccinate →Xanthan Gum
Binding, Emulsion Stabilising, Gel Forming, Skin Conditioning, Cleansing, Emulsifying, Viscosity Controlling
Xanthan gum
Learn more about Xanthan Gum →
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