(The Best Years in Life) Silica is a mineral that is known as "the beauty mineral" because it helps the body create connective tissues which are essential for healthy skin elasticity and the healthy growth of hair and fingernails. However, silica does much, much more than just help us look good. Silica improves the structure of all the connective tissues in the body and it is vital for maintaining a healthy bone structure and a strong cardiovascular system. Read More.