Royallines Biotin & Keratin Complex Hair Growth Hair Mask delivers intensive nourishment to strengthen and revitalize your hair from root to tip. Enriched with biotin and keratin, this potent formula works to reduce breakage, enhance elasticity, and promote healthier hair growth. The deep-conditioning mask penetrates damaged strands to restore shine and smoothness while improving overall hair texture. Ideal for weakened, thinning, or chemically-treated hair, this treatment mask helps you achieve thicker, stronger, and more resilient locks with regular use.