20-fn-1 Leave-In is a conditioner and treatment that strengthens and deeply nourishes the hair from roots to ends with a blend of naturalingredients, botanicals, keratin, caviar extract and argan oil. It provides 20 benefits in 1 easy step: Softens, smoothes, restores, detangles, adds shine, Increases body.enhances moisture balance. evens porosity, blocs humidity. eliminates frizz. provides uv protection, seals cuticle, improves manageability, extends color, promotes elasticity, prevents breakage, protects from heat, mends split ends, controls static ,and rebuilds damagedhair.