FOR BEST RESULTS: Try pairing Curl Keeper's Slip Treatment Shampoo with Curl Keeper's Leave-in Conditioner. Curl Keeper's Leave-in Conditioner smoothes the rough cuticles responsible for frizzy, flyaway hair and leaves hair hydrated. SILICONE FREE: Curl Keeper is a series of products created using only high-quality ingredients that are safe and gentle enough for daily use. Our formulas are silicone-free, and our products are never tested on animals. RECOMMENDED FOR COLORED HAIR TYPES: Curl Keeper's Treatment Shampoo is recommended for colored and chemically treated hair. Its rich formula will deposit beneficial ingredients that are essential in rebuilding chemically damaged hair. SULPHATE-FREE SHAMPOO: Curly Hair Solutions Treatment Shampoo is a concentrate of panthenol and magnesium formulated to strengthen the hair's ability to stretch without breaking.