This is a patented curl-defining formula that will tame frizz and unruly curls. HIS MIX works on many hair textures and perms. KEY INGREDIENTS: jojoba oil, hydrolyzed protein & collagen. FRIZZ SECRET: often people with straight or wavy hair have frizz. HIS MIX leave-in was designed for curls, but we have a ton of customers with straight hair saying good things about us behind our backs.