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Ingredient
Vitamin C (L-AA)
Scientific name: Ascorbic Acid · Antioxidant, brightening, collagen synthesis
Gold-standard antioxidant. Most effective at pH < 3.5 and 10–20% concentration.
Good for
DullHyperpigmentationAging
Caution
Can sting and oxidize quickly. Do not layer with niacinamide on sensitive skin, or with AHA/BHA/retinol in the same routine.
Best Korean products with Vitamin C (L-AA)
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