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La Roche-Posay
Vitamin C12 Oil Control Serum For Oily Skin
A serum built around Vitamin C and Vitamin C, for smoothing and pollution defence.
Brand price
USD 44.99 · checked 25 Sept 2026 · on the brand's site
From the brand
What the brand says about this product. Our ingredient analysis follows below.
The brand recommends it for
- Oily skin
- Combination skin
- Sensitive skin
- Fine lines & wrinkles
- Dullness
- Uneven texture
How to use
QUANTITY 3-4 Drops WHEN MORNING After cleansing face WHERE ON FACE & NECK Taking care to avoid eye area APPLICATION TIP Gently massage the serum with your finger tips. Follow with a daily moisturizer and SPF.
Caution
Pure vitamin C can react on contact with the air, causing it to turn yellow. But it's still effective.
What's inside
Ingredients List
3 trigger at least one check · 12 trigger none
- Vitamin C
- Vitamin C (L-ascorbic acid)
- Anti-Aging
- Anti-Pollution
- Antioxidant
- Brightening
- Dark Spots
- Even Tone
Key Ingredients
Hyaluronic acid1
Hyaluronic acid and its salts; a humectant that binds water to the skin.
Benefits
Anti-Pollution3
Helps defend against airborne pollutants.
Concerns
May Worsen Seborrheic Dermatitis2
May feed the yeast involved in seborrheic dermatitis.
Ingredients Explained
Click on any ingredient to learn more about it
Aqua
Solvent
Ascorbic Acid
Antioxidant, Buffering, Fragrance, Skin Conditioning
Ascorbic Acid is L-ascorbic acid.
Learn more about Ascorbic Acid →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 →Hydroxyacetophenone
Antioxidant
Hydroxyacetophenone is the organic compound
Learn more about Hydroxyacetophenone →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 →Trisodium Ethylenediamine Disuccinate
Chelating
L-Aspartic acid, N,N'-1,2-ethanediylbis-, trisodium salt
Learn more about Trisodium Ethylenediamine Disuccinate →Salicylic Acid
Anti-seborrheic, Fragrance, Hair Conditioning, Keratolytic, Preservative, Skin Conditioning
Salicylic Acid is a BHA.
Learn more about Salicylic Acid →
Dupes
- La Roche-Posay Retinol B3 Pure Retinol Serum71% match
- La Roche-Posay Vitamin C12 Serum71% match
- Purito Pure Vitamin C Serum69% match
- La Roche-Posay Hyalu B5 Suractivated Serum with Hyaluronic Acid66% match
- SkinCeuticals P-TIOX Anti-Wrinkle Serum65% match
- La Roche-Posay Mela B3 Double Dose Discoloration Treatment with Melasyl™64% match