brittle nails
Biotin is a water-soluble B vitamin essential for converting food into energy and maintaining healthy skin, hair, and nails. Found naturally in eggs, nuts, whole grains, and organ meats, it also...
Silica (silicon dioxide) is an essential trace mineral found in connective tissues, cartilage, skin, bones, hair, and nails. Silicon, in its soluble colloidal form as silicic acid, plays a vital...