Ideal for extreme humidity and extra hold, our Advanced Climate Control® Heat & Humidity Gel €“ Stronger Hold defines and protects your curls. The multitasker offers a strong, long-lasting hold with a crunch-free 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. Our 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. NanoTechnology refers to the size of the molecules in the formula, which are small enough to penetrate the cuticle and provide maximum frizz-fighting benefits.