​("White Henna" also which is not Henna as such or natural  but is a medical FDA approved skin adhesive which dries with a texture of Henna and is sealed with natural Mica / Gem / Metallic  powders to extend the possibilities of Mehndi  for Henna Artists. "White Henna" adhesive is also used to stick on Gems etc to create bling. (Lasts three days to a week) White Henna paste  is made  from water, emulsion, glyceryl, guar gum, sorbitol, titaniym dioxide and a trace ( less than 1%) benzyl alcohol. (Examples in The Talisman Tattoo shop)