- A unique Humidity Shield Complex and amino acids form a lightweight, protective barrier that locks in moisture and blocks out frizz. High humidity is a threat to even the healthiest curls. If moisture levels and internal weight are not optimized, curls will be puffy and frizzy with unwanted volume. Climate Control Defrizzing Conditioner creates a lightweight humidity shield that locks moisture into curls and blocks out frizz. Amino acids help fill up the cuticle with moisture to form a breathable, weightless layer of protection and make curls frizz resistant. Apply to freshly shampooed, wet/damp hair. Start approximately 1/8 inch from the scalp. Work through hair using a wide-tooth comb and leave in hair for 3 minutes. Rinse. If desired, leave a small amount of conditioner on the ends of hair as a leave-in treatment. NOTE: The ends of hair need more conditioner than the roots, so always begin conditioner application at the ends and work up to the scalp. There is no need to put conditioner directly on scalp. Avoiding this allows pores to breathe.