Henna comes from the dried, milled leaves of Lawsonia inermis. The active molecule is lawsone, a naphthoquinone that bonds to t...

Henna (Lawsonia inermis) carries lawsone, an orange red dye molecule. Lawsone binds to keratin through a Michael addition react...

Generic hair advice fails in Pakistan because three local variables change the outcome: water hardness, humidity swing, and air...