Hair strength can be improved. One way to do this is to treat it with betaine. This article describes hair structure and the results of tensile testing experiements on hair that has been treated with betaine. It postulates a possible theory for the improvement of hair.
Excerpt Only This is a shortened version or summary of the article that appeared in the March 01, 2002 issue of Cosmetics & Toiletries magazine. The full content is not currently available online.