Biosilk Silk Therapy Original is a weightless leave-in treatment that is perfect for all hair types. This silk replenishing and reconstructing treatment helps repair, smooth, and protect your hair. With its unique formula, Biosilk Silk Therapy Original replenishes and reconstructs your hair, leaving it looking healthy and vibrant. This leave-in treatment is easy to use and provides long-lasting results. Say goodbye to frizzy and damaged hair and hello to silky smooth locks with Biosilk Silk Therapy Original.