La Roche-Posay
Mela B3 Dark Spot Serum With Melasyl™ + NiacinamideSkinCeuticals
Hyaluronic Acid Intensifier Multi-GlycanA serum built around Niacinamide and Hyaluronic acid, for barrier repair and hydration.
A serum built around Hyaluronic acid and Vitamin E, for hydration and barrier repair.
Brand price
USD 60.99 · checked 25 Sept 2026 · brand's site
Brand price
USD 120.00 · checked 28 Sept 2026 · brand's site

At a Glance

They come out differently on EU-allergen-free and Alcohol-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.
Hyaluronic acid1
Hyaluronic acid and its salts; a humectant that binds water to the skin.

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.
Caprylic/Capric Triglyceride, Dimethicone, Dipotassium Glycyrrhizate, Glycerin, Propylene Glycol, Sodium Acetylated Hyaluronate, Sodium Hyaluronate, Tocopherol
Barrier Repair8
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, Octyldodecanol, Propylene Glycol, Tocopherol

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 Dermatitis4
May feed the yeast involved in seborrheic dermatitis.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Octyldodecanol, PEG-20 Methyl Glucose Sesquistearate, Sodium Acetylated Hyaluronate
May Worsen Irritation4
May cause stinging, redness or sensitivity.
Alcohol Denat., Citrus Nobilis Peel Oil, Limonene, Tocopherol

Ingredients Side-by-side

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
Fragrance
0 / —
- Denatured alcohol
- May Worsen Dryness
- May Worsen Eczema
- May Worsen Irritation
- May Worsen Rosacea
Hydroxypropyl Tetrahydropyrantriol
Skin Conditioning
Emulsifying
Lactobacillus/Soybean Ferment Extract
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 →Propylene Glycol
Fragrance, Humectant, Humectant, Skin Conditioning, Solvent, Viscosity Controlling
Propylene Glycol is the aliphatic alcohol that conforms generally to the formula
Learn more about Propylene Glycol →Polysilicone-11
Film Forming
Polysilicone-11 is a silicone.
Learn more about Polysilicone-11 →Bis-Peg/Ppg-16/16 Peg/Ppg-16/16 Dimethicone
Skin Conditioning, Emollient, Cleansing, Emulsifying
Bis-Peg/Ppg-16/16 Peg/Ppg-16/16 Dimethicone is a silicone.
Learn more about Bis-Peg/Ppg-16/16 Peg/Ppg-16/16 Dimethicone →PEG-20 Methyl Glucose Sesquistearate
Emulsifying
PEG-20 Methyl Glucose Sesquistearate isn't fungal acne safe.
Learn more about PEG-20 Methyl Glucose Sesquistearate →Sodium Hyaluronate
Humectant, Skin Conditioning
Sodium Hyaluronate is a hyaluronic acid.
Learn more about Sodium Hyaluronate →Sodium Hydroxide
Buffering, Denaturant
Sodium hydroxide
Learn more about Sodium Hydroxide →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 →
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