La Roche-Posay
Vitamin C12 Oil Control Serum For Oily SkinA serum built around Vitamin C and Vitamin C, for smoothing and pollution defence.
A serum built around Niacinamide, for barrier repair and smoothing.
Brand price
USD 44.99 · checked 25 Sept 2026 · brand's site
Brand price
USD 54.99 · checked 25 Sept 2026 · brand's site
At a Glance
They come out differently on Alcohol-free, Silicone-free and Oil-free; those rows are shaded. Tap any answer to see why.
Key Ingredients
Fatty alcohol1
Waxy fatty alcohols used as emollients and thickeners; unrelated to drying alcohol.
Benefits
Hydrating5
Boosts hydration and relieves dry, tight skin.
Dimethicone, Dipotassium Glycyrrhizate, Glycerin, Propylene Glycol, Tocopherol
Barrier Repair11
Strengthens and restores the skin's natural barrier.
Caprylyl Glycol, Cetearyl Alcohol, Dimethicone, Glycerin, Glycine Soja Oil, Neopentyl Glycol Dicaprate, Niacinamide, Octyldodecanol, Propylene Glycol, Sucrose Tristearate, Tocopherol
Concerns
May Worsen Seborrheic Dermatitis2
May feed the yeast involved in seborrheic dermatitis.
May Worsen Seborrheic Dermatitis7
May feed the yeast involved in seborrheic dermatitis.
Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Cetearyl Alcohol, Glycine Soja Oil, Hydrogenated Lecithin, Octyldodecanol, Sodium Stearoyl Glutamate, Sucrose Tristearate
May Worsen Keratosis Pilaris3
May clog follicles or strip skin prone to keratosis pilaris.
Ingredients Side-by-side
Antioxidant
- Vitamin C
- Vitamin C (L-ascorbic acid)
- Anti-Aging
- Anti-Pollution
- Antioxidant
- Brightening
- Dark Spots
- Even Tone
Antioxidant
Trisodium Ethylenediamine Disuccinate (in both products)
Chelating
Emollient
Fragrance
0 / —
- Denatured alcohol
- May Worsen Dryness
- May Worsen Eczema
- May Worsen Irritation
- May Worsen Rosacea
Smoothing
0 / —
- Niacinamide
- Acne Fighting
- Barrier Repair
- Brightening
- Dark Spots
- Even Tone
- Oil Control
- Pore Refining
- Redness Reducing
Hydroxypropyl Tetrahydropyrantriol
Skin Conditioning
Emollient
- Fatty esters (glyceryl stearate, PEG-100 stearate)
- May Worsen Seborrheic Dermatitis
Emollient
2 / 1
- Fatty alcohol
- Fatty alcohols (Malassezia)
- May Trigger Acne
- May Worsen Keratosis Pilaris
- May Worsen Seborrheic Dermatitis
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
Pentylene Glycol
Skin Conditioning, Solvent
1,2-Dihydroxypentane
Learn more about Pentylene Glycol →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 →Potassium Hydroxide
Buffering
Potassium Hydroxide is the inorganic base
Learn more about Potassium Hydroxide →Adenosine
Skin Conditioning
6-Amino-9-beta-D-ribofuranosyl-9H-purine
Learn more about Adenosine →Trisodium Ethylenediamine Disuccinate
Chelating
L-Aspartic acid, N,N'-1,2-ethanediylbis-, trisodium salt
Learn more about Trisodium Ethylenediamine Disuccinate →Caprylyl Glycol
Deodorant, Hair Conditioning, Skin Conditioning, Emollient
Caprylyl Glycol is the diol that conforms to the formula
Learn more about Caprylyl Glycol →Parfum
Fragrance, Perfuming
Parfum is a fragrance.
Learn more about Parfum →Citric Acid
Buffering, Chelating, Fragrance
Citric Acid is an AHA.
Learn more about Citric Acid →
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