La Roche-Posay
Vitamin C12 SerumLa Roche-Posay
Vitamin C12 Oil Control Serum For Oily SkinA serum built around Vitamin C and Vitamin C, for barrier repair and hydration.
A serum built around Vitamin C and Vitamin C, for smoothing and pollution defence.
Brand price
USD 44.99 · checked 25 Sept 2026 · brand's site
Brand price
USD 44.99 · checked 25 Sept 2026 · brand's site
At a Glance
They come out differently on Alcohol-free and Silicone-free; those rows are shaded. Tap any answer to see why.
Key Ingredients
Benefits
Hydrating6
Boosts hydration and relieves dry, tight skin.
Dimethicone, Glycerin, Hydrolyzed Hyaluronic Acid, Propylene Glycol, Sodium Hyaluronate, Tocopherol
Barrier Repair8
Strengthens and restores the skin's natural barrier.
C13-14 Isoparaffin, Caprylyl Glycol, Cyclohexasiloxane, Dimethicone, Glycerin, Pentaerythrityl Tetraethylhexanoate, Propylene Glycol, Tocopherol
Concerns
May Worsen Seborrheic Dermatitis3
May feed the yeast involved in seborrheic dermatitis.
Acetyl Dipeptide-1 Cetyl Ester, Laureth-7, PEG-20 Methyl Glucose Sesquistearate
May Worsen Seborrheic Dermatitis2
May feed the yeast involved in seborrheic dermatitis.
Ingredients Side-by-side
Ascorbic Acid (in both products)
Antioxidant
- Vitamin C
- Vitamin C (L-ascorbic acid)
- Anti-Aging
- Anti-Pollution
- Antioxidant
- Brightening
- Dark Spots
- Even Tone
Fragrance
0 / —
- Denatured alcohol
- May Worsen Dryness
- May Worsen Eczema
- May Worsen Irritation
- May Worsen Rosacea
Ascorbic Acid (in both products)
Antioxidant
- Vitamin C
- Vitamin C (L-ascorbic acid)
- Anti-Aging
- Anti-Pollution
- Antioxidant
- Brightening
- Dark Spots
- Even Tone
Antioxidant
Salicylic Acid (in both products)
Preservative
- BHA
- Salicylic acid
- Acne Fighting
- Exfoliating
- Oil Control
- Pore Refining
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
Ascorbic Acid
Antioxidant, Buffering, Fragrance, Skin Conditioning
Ascorbic Acid is L-ascorbic acid.
Learn more about Ascorbic Acid →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 →Sodium Hyaluronate
Humectant, Skin Conditioning
Sodium Hyaluronate is a hyaluronic acid.
Learn more about Sodium Hyaluronate →Adenosine
Skin Conditioning
6-Amino-9-beta-D-ribofuranosyl-9H-purine
Learn more about Adenosine →Salicylic Acid
Anti-seborrheic, Fragrance, Hair Conditioning, Keratolytic, Preservative, Skin Conditioning
Salicylic Acid is a BHA.
Learn more about Salicylic Acid →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 →
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