Protein molecules polymerize with blow-drying or ironing heat and create large protein chains, preventing loss through cuticle breaks. Vegetable ceramide and wheat proteins coat and smooth down broken, lifted cuticles for great manageability. NMF maximizes moisture retention and silk proteins seal cracked cuticles to lock in the NMF molecules. Silk PPT polymerize with heat and form a silk film to coat each strand and lock in vital emollients and nutrients. Directions: Apply, on the step of pretreatment, ID Care Heat Silk Lotion to very damaged hair and apply heat for maximum effect. Apply, on the intermediate shampooing, ID Care Heat Silk Lotion after gently patting dry hair with towel and apply heat for maximum effect.