Thickens and strengthens. Helps repair weak and damaged hair. Moisturizes and cleanses. Shea Butter, vitamins & botanical thickeners. Promotes thick, strong, growing hair. Doo Gro Mega Thick Anti-Thinning Shampoo helps promote thick, strong, healthy hair. Enriched with Shea Butter, vitamins, oat proteins and botanical thickeners, its rich luxurious formula gently cleanses and moisturizes hair, while adding volume and thickness. Restore strength to weak, damaged hair and is safe to use in all types of hair including color treated, bleached and relaxed.