Cosrx The Vitamin C 23 Serum - 20g

Product Details

COSRX The Vitamin C 23 Serum (20g/0.67 fl oz) is a K-beauty serum with 23% pure Vitamin C (ascorbic acid) designed to brighten skin, fade acne scars, reduce hyperpigmentation, and improve elasticity. Its dual-layer formula (oil over serum) prevents oxidation while providing a moisturizing finish. Suitable for normal to oily skin, it targets dullness, uneven tone, and fine lines. The lightweight texture absorbs smoothly, though it may feel slightly greasy initially. It’s cruelty-free, fragrance-free, and formulated without parabens. Store in a refrigerator (3-10°C) after opening and use within 2 months for optimal potency. Clinical results show 16.26% improved pigmentation, 32.89% better redness, and 38.65% reduced pore volume after 4 weeks.

The key ingredients in COSRX The Vitamin C 23 Serum (20g) include Ascorbic Acid (23%), a potent form of pure Vitamin C that brightens skin, boosts collagen production, and fights signs of aging. Tocotrienols, a super Vitamin E, offer 50 times stronger antioxidant protection than tocopherol, supporting collagen and skin repair. Sodium Hyaluronate provides deep hydration and moisture retention, while Panthenol soothes and strengthens the skin barrier. Allantoin calms irritation, and Niacinamide, Glutathione, and Adenosine work together to enhance skin brightness and firmness, targeting dark spots and uneven texture.

After cleansing and toning, shake the bottle lightly 1-2 times. Apply 3-4 drops to the face, gently massaging from the center outward until absorbed. Use morning and/or evening; apply SPF 30+ in the morning. For first use, attach the dropper. Patch test for sensitive skin. Avoid mixing with AHA/BHA products to prevent irritation. If stickiness occurs, follow with moisturizer. Store in refrigerator (3-10°C) and use within 2 months.