COSRX The Vitamin C 13 Serum is a gentle yet effective brightening serum formulated with 13% pure vitamin C (ascorbic acid). This antioxidant-rich serum works to brighten dull skin, improve uneven skin tone, and reduce the appearance of dark spots and hyperpigmentation. Its lightweight, fast-absorbing texture revitalizes the skin while hydrating and soothing, leaving your complexion fresh, radiant, and healthy-looking.

Key Benefits:

1. Brightens dull and tired-looking skin
2. Reduces the appearance of dark spots and pigmentation
3. Evens out skin tone for a radiant complexion
4. Provides antioxidant protection against environmental stressors
5. Hydrates and smooths the skin without greasiness
6. Strengthens the skin barrier with gentle, skin-friendly ingredients

Suitable for Skin Types:

Suitable for all skin types, including normal, dry, combination, oily, and sensitive skin. Especially beneficial for dull, uneven, and tired skin.

How to Use:

1. Apply a few drops to clean, toned skin in the morning or evening.
2. Gently massage and pat until fully absorbed.
3. Follow with a moisturizer to lock in hydration.
4. Use sunscreen during the day when using vitamin C products.

Usage Warnings:

1. For external use only.
2. Avoid contact with eyes. If contact occurs, rinse thoroughly with water.
3. If irritation or discomfort occurs, discontinue use and consult a dermatologist.
4. Perform a patch test before first use, especially for sensitive skin.
5. Store in a cool, dry place away from direct sunlight. Vitamin C products are sensitive to light and heat.
6. Keep out of reach of children.