Unlike other thickening conditioners that only seem to add weight without actually thickening, BioSilk® Condition Thickening Conditioner will thicken your thin, fine hair without adding any weight!! Formulated with Vitamin B and Wheat proteins, each strand of your hair will be plumped up and texturized. Silk proteins further the process, and also add shimmering, silky shine! Your hair will be fuller, thicker, healthier and happier!