Description: The first serum combining 2 forms of vitamin C for immediate and continuous action on spots and radiance. An anti-spot lightening booster serum combining 10% pure vitamin C with 2% pro-vitamin C for a visible result in 14 days on complexion, brown spots and lack of radiance. how to use ? During first use, remove the seal and press the press button under the product. Shake well before use. Apply morning and evening to face and neck.