This product helps prevent frizz all day long by creating a barrier between your hair and the weather. Smoothes the hair cuticles, leaving strands looking shinier and more vibrant, ready for styling. Based on lab test with TRESemme Climate Control Shampoo & Conditioner vs. non conditioning shampoo. HOW IT WORKS With Climate Control Complex, Keratin and Olive Oil, hydrates hair. Smoothes the hair cuticle, leaving strands looking shinier and more vibrant. Preps hair for styling so that your look will last all day, despite uncertain conditions.