Color Therapy Lock & Protect Leave-In Treatment Color Therapy Lock & Protect Leave-In Treatment U-HC-7986 Biosilk 5.64 oz Treatment Unisex MSRP: Price: 2099-12-31 $21.23 This Color Therapy Lock & Protect Leave-In Treatment from Biosilk is a light, refreshing treatment that helps to protect hair from the elements and color-treated hair from fading. The treatment... Add to Cart Add to Cart