Soles and palms have the thickest layer of skin and so take up the most lawsone, and take it to the greatest depth, so that hands and feet will have the darkest and most long-lasting stains.
12.
A woman draws henna or mehndi, a temporary form of skin decoration using henna, on the bride and guests'skin usually the palms and feet, where the henna color will be darkest because the skin contains higher levels of keratin there, which binds temporarily to lawsone, the colorant of henna.
