Cosrx The Vitamin C 13 Serum at a glance The Cosrx The Vitamin C 13 Serum is a gentle vitamin C serum with hyaluronic acid and super that can be used daily on sensitive skin. Regular use fades skin imperfections and pigmentation and evens out skin tone. Compared to the COSRX The Vitamin C 23 Serum, the The Vitamin C 13 Serum with 13% is a milder serum for daily use for more sensitive skin types. Vitamin C, also known as ascorbic acid, is a highly effective active ingredient that is used to prevent and regenerate skin aging and improves the formation of the skin's own collagen. In addition, vitamin C helps to improve skin texture and fades acne scars and hyperpigmentation caused by aging or UV radiation. Tocotrienol is a "supervitamin E" which has an antioxidant effect that is up to 50 times stronger than tocopherol. For skin care, a combination such as in the Cosrx The Retinol 0.1 Cream is an optimal option, as tocotrienol enhances the positive effect of tocopherol. The two ingredients protect the skin barrier and make it more resilient, they also promote cell renewal and collagen production in the skin and thus not only reduce wrinkles, but also increase skin elasticity. Hyaluronic acid provides the skin with intensive moisture, it is plumped up and tightened and fine lines and wrinkles are reduced. WHO is the Cosrx The Vitamin C 13 Serum suitable for? Due to its mild formulation, the serum is suitable for sensitive skin types who prefer a gentle serum for daily use to reduce fine lines and To reduce wrinkles, fade pigmentation and acne scars and give dull, dry skin a healthy glow. Active ingredients: Vitamin C (ascorbic acid) improves the complexion and evens out skin tone by fading acne scars and pigmentation. Tocotrienol (supervitamin vitamin E) has a strong antioxidant effect, protects and strengthens the skin barrier, promotes cell renewal and collagen production and increases skin elasticity. Hyaluronic acid provides a lot of moisture and relieves skin irritations. Allantoin has a moisturizing, soothing and cell-renewing effect. The American Low Value Shipment Regulatory Modernization Act is active since March 2016 and increases the duty and tax free value of goods American citiziens could import from other countries by mail from $200 to $800 as well as no formal customs procedures are required. The American Low Value Shipment Regulatory Modernization Act is active since March 2016 and increases the duty and tax free value of goods American citiziens could import from other countries by mail from $200 to $800 as well as no formal customs procedures are required