Advanced Climate Control® Heat & Humidity Gel, defines and helps protect your curls. The multitasker offers a soft hold with a crunch-free, lightweight finish that adds definition to lock in moisture and lock out humidity. Formulated with wheat protein and flexible styling polymers, your curls stay intact even as heat and humidity rise. Ouidad's signature high-performance Anti-Frizz Nano Technology® with sericin, a protein derived from silk, forms an invisible barrier to block out humidity that causes frizz. “Nano” Technology refers to the size of the molecules in the formula, which are small enough to penetrate the cuticle and provide maximum frizz-fighting benefits.