The launch of BioSilk Silk Therapy was another first as pure natural silk had never been used in hair care before. It was created as a weightless, leave-in silk repairing and reconstructing treatment to repair, smooth and protect all hair types. This innovative leave-in hair treatment has led to the development of BioSilk Hair Color, as well as a full range of hair care and styling tools. Characteristics BioSilk® Silk Therapy® Lite is an ultralight leave-in reconstruction treatment formulated to give fine, thin hair a miraculously smooth and silky appearance without adding excess oil or weighing hair down. Fills in gaps in the cuticle to create smooth hair Helps prevent split ends Provides incredible shine Formulated for fine or thin hair. How to use Place a small amount of Silk Therapy Lite on palms and apply from mid-lengths to ends. It can be used on wet hair, dry hair and skin. Use as often as needed.