Lotion P50, Biologique Recherche's most renowned product, is an ideal facial toner for normal to oily skin. Biologique Recherche P50 gently exfoliates the skin, purifies pores, regulates oil production and rebalances the skin's pH. The gentle blend of acids helps shrink enlarged pores, and the onion extract hydrates the upper layers of the epidermis. P50 removes and dissolves dead skin cells and impurities daily.