Details: Ultra-powerful, anti-frizz treatment for the most difficult, frizz-prone hair types, from extremely dry and dehydrated to curly/coily. Advanced humidity blocking formula infuses moisture, “waterproofs” hair, and delivers super-strong, frizz-resisting power. Delivers glassy-sleek blow-dry results and prevents smooth, straight strands from reverting back to naturally curly, frizzy texture in the worst humidity. Sleek, smooth results last 3-4 shampoos.