The P50 1970, P50, P50V, P50V 1970, P50W 1970, P50W, and P50 Pigm 400 balancing exfoliators are the unique fruit of 30 years of reflection and experience. P50 balancing exfoliators speed up the natural exfoliation process and the reconstruction of the epidermal shield. The fortified epidermis can then fulfill its protective functions completely, enhancing skin's self-regeneration potential. All Biologique Recherche skin care treatments, whether administered at home or in a Rescue Spa facial, start with the P50 ritual. Best practice is to apply daily, morning and evening to gently exfoliate the skin, regulate excess sebum secretion, moisturize and maintain the acid pH.