Suitable for Dull, Tired & Moody Skin 5,000mg is the highest dosage of Vitamin C that can be found in Cosmoderm Glow-C Super Boosting Serum which helps to brighten dark spots effectively and improves skin elasticity by stimulating collagen production. It lightens pigmentation and dark spot effectively. Cosmoderm Glow-C (Vitamin C) is the NEW skincare range that is rich in antioxidants where it helps to protect skin cells from damaging free radicals caused by UV exposure. Vitamin C delivers a variety of anti-ageing benefits such as boosting collagen production to maintain firm and bouncy skin. The end result, it will give you radiant and bouncy skin