BioSilk Silk Therapy Original, Reconstructing Treatment For Adding Shine & Helping Prevent Split Ends. Silk Therapy is the ultimate solution for damaged hair. BioSilk Silk Therapy Original is a weightless reconstructing leave-in treatment that protects all hair textures, including fine hair, curly hair, textured hair, wavy hair, and even color-treated hair! The rich, moisture-bursting formula naturally helps repair split ends while protecting from future damage. For centuries, silk was celebrated as a luxurious fabric due to its smooth texture & luster. This treatment was created as a weightless, leave-in silk replenishing formula to repair, smooth & protect all hair types. In 1986, Farouk Shami discovered the benefits of silk & how it could be used for hair. He knew that women wanted their hair to be shiny, healthy looking & conditioned. He found that Silk was capable of solving these 3 issues. ioSilk has some of the most powerful and effective treatments. Whatever your style, we have a treatment just for you. Choose yours today. Fills voids in cuticle to create smooth hairAids in preventing split endsProvides incredible shineNourishes dry strandsSmells greatPrevents breakageMakes hair soft and silkyAdds volume to thin or flat hair