Piment Doux Concentre is a Super Lightening/Whiten Serum Containing Fruit Acids Highly Effective in Lightening/Whiten Stubborn Spots/Marks, Knuckles, Underarms and Inner Thighs. It is especially designed lotion used to clear and cleanse dark spots on the face and body. Use: Mix the serum in your lotion or cream and use it after cleaning the skin. For difficult parts such as elbows, fingers, and toes, you may use it directly with a dry cotton swab. Best if used at night. If using in the daytime, use sunblock.