1 X Selfless by Hyram Mandelic Acid & Rice Bran Gentle Exfoliating Serum to Improve Skin Texture for Smoother and Brighter Looking Skin 30ml. Gentle Mandelic Acid and PHA combined with Rice Bran (Phytic Acid) and Salicylic Acid to gently exfoliate the skin, helping to even skin texture and promote an overall smoother appearance, help skin to appear brighter and prevent the clogging of the pores.