Our Nail Strengthener with Gelatin supplement is popular among people who want strong and healthy nails. Our high-potency formula contains a combination of different vitamins important for strong nails. It also contains gelatin, a popular protein source for nail health. Gelatin, a source of collagen, is rich in dietary keratin. Our nails are made up of keratin. It is what gives nails their strength and durability. Regrettably, the aging process robs us of the ability to create adequate amounts of collagen & keratin which can lead to weaker, more brittle nails. Supplements containing calcium, magnesium, and gelatin may help normal keratin levels in the body necessary for strong healthy nails. All Mason Natural products are produced in a GMP certified facility and laboratory tested for purity.