Best Supplements for Nails and Hair provide essential nutrients that promote growth, strength, and shine. Biotin, also known as vitamin B7, supports keratin production, improving nail thickness and hair texture. Collagen supplements help strengthen hair roots and prevent nail breakage by supporting structural proteins. Zinc and iron are vital for maintaining healthy growth and prevent... https://nuvvagen.com/2025/07/27/best-supplements-for-hair-skin-and-nails/