Lotion P50, the most famous and coveted product, is the keystone to Biologique Recherche's skin care treatment. Lotion P50 removes the dead cells and impurities, tones, hydrates and brightens the skin. This anti-aging lotion prevents formation of fine lines and promotes healthy epidermis. All Biologique Recherche skin care treatments, whether administered at home or in a beauty institute, start with the P50 ritual. It is applied in the morning and in the evening. It gently purifies and moisturizes the skin, restoring its density and balancing the epidermal pH. It also prepares the skin for its next treatment, leaving it clean and toned. Lotion P50 without the phenol is recommended for Normal to Oily Skin.