Gently used, Please read full description before purchasing! Biologique Recherché P50. I have been an avid P50(w) user for years, i went to a different facialist recently and she suggested that I move up to the full potency original formula. It turned out to be too harsh on my sensitive skin. I since went back to the P50(w) formula, but I have this 5oz version of P50, it’s over 3/4 full. I only had used it for about a week, maybe 4-5x before switching back. Selling for a very discounted rate since it’s open and gently used. Experience the purifying power of Lotion P50. This exfoliating formula is perfect for revitalizing your skin.