Smooth Booster Willow Bark Exfoliating Serum - The first Clinically Kind resurfacing booster made for sensitive skin. Beekman 1802's Smooth Booster Willow Bark Exfoliating Serum is a vegan, concentrated serum powered by willow bark extract, which is a less irritating alternative to salicylic acid and is clinically tested to smooth skin. Benefits Smooths & resurfaces rough & bumpy skin Exfoliates skin's surface revealing younger looking skin Safe for sensitive skin Key Ingredients Willow bark breaks down into salicin which helps calm redness and irritation while deeply exfoliating skin. Caviar Lime has natural AHA properties that help increase the speed at which your skin sheds dead skin cells, helping prevent clogged pores and breakouts. Clinical Results 97% saw smoother skin 100% saw softer skin 100% had zero reaction in sensitive skin & allergy testing - Smooth Booster Willow Bark Exfoliating Serum