How long do henna stains last?
They generally last for 2-3 weeks. Henna stains the top few layers of skin cells, so the design starts to fade away gradually. It is of utmost importance to follow after care instructions for the design to reach the darkest stain and then for it to last longer. However, the henna design cannot last longer than 3 weeks, since skin exfoliates.
Why does henna stain different parts of the body differently?
Henna stains on palms and soles go many layers deep. Palms and soles have thickest skin, on average, 50 cell layers. The more layers, the darker the stain, usually. Hence, the stains on palms and soles are the darkest. whereas, arms, legs, ankles do get a good stain, but not the darkest, reason being, difference in skin composition.