Volume hair volumizing and cuticle treatment, the vitamin enriched formula nourishes dormant hair roots with essential nutrients while increasing the strength and diameter of weakened hair shafts. Therapro Mediceuticals Strength – Protect & Repair Hair Treatment stops hair breakage. Increases hairs tensile strength up to 58%. Protects and repairs fine, weak, fragile and chemically damaged hair. Restores moisture, elasticity and natural shine. Reduces thermal hair damage up to 56%. Safe for color treated hair, rinses 100% clean.