Bioderma White Objective Lightening Serum is a hyperpigmentation treatment suitable for all skins, including sensitive skin and pregnant women. This serum acts on all stages of melanin production thanks to the WO Patent which is based on andrographolide, glabridin, melanostatin and lysine azelate to inhibit melanin production and help prevent indirect melanin synthesis. Vitamin C and glycolic acid help with already existing hyperpigmentation to remove spots due to their ability to boost cellular renovation and whitening properties. This treatment serum can be used alone or in combination with hydroquinone treatments, but should always be associated with an adequate solar protection.