MJ CARE SERIES Hair color, perms and daily stress, such as exposure to UV rays, damages the scalp and hair. Oxygen radicals, generated and aggravated by these factors, cause premature aging of the scalp and hair. Premature aging dries hair, split ends and accelerates hair loss. MJ Care Series have been developed by dermatologists to restore scalp and hair health. Amino acid based leave-in treatment nourishes dry, brittle hair to create smooth, shiny hair without a greasy residue.