C-TETRA E.F. serum, an effective vitamin C treatment, provides antioxidant protection, improving the glow of the skin and targets imperfections caused by aging. C-TETRA E.F. serum uses three different types of vitamin C, which act on different layers of the skin. The product contains stable and pure forms of vitamin C that are effective on the entire skin. C-TETRA E.F. contains 10% vitamin C Tetra, which works in the deepest layers of the skin, treating skin darkening and promoting collagen production. The product also contains Ascorbosilane and Ascorbyl Glucoside, which improve the glow of the skin and reduce general imperfections. In addition, the serum contains vitamin E and ferulic acid, which enhance antioxidant protection, keeping the skin protected throughout the day.
To achieve protective antioxidant protection, apply a small amount of the product to the skin in the morning. Massage gently until fully absorbed.
Always use sunscreen when using the product.
In the evening, apply to cleansed skin so that the vitamin C effect can take effect while you sleep. Make sure you don't use retinol-based products at the same time to avoid skin irritation and get maximum results.