Our Men's Hair Thickening Foam contains water, biotin, and castor oil. It helps penetrate into the scalp to awaken dormant follicles, promoting new hair growth and making hair longer and thicker. Its usage is simple: 1. Clean and dry hair and scalp. 2. Apply 1-2 pumps of foam evenly and gently massage into scalp for 1-2 minutes until naturally dry. After use, follicles are awakened and gradually grow healthier black hair