The other henna ceremony occurs after the wedding ceremony, called the Day of Henna. Skin exfoliation causes the henna tattoo to fade. The FDA and medical journals report that painted black henna temporary tattoos are especially dangerous. Body art quality henna is often more finely sifted than henna powders for hair. They often dyed their feet and hands with henna. Some products sold as "henna" include these other natural dyes. Mummified pharaohs also had their nails painted with henna. Women apply henna and other cosmetics to themselves and each other. Nails and hands were painted with henna. Nails and hands were also painted with henna. The primary exports were leather, gold, cloth, salt, kola nuts, slaves, animal hides, and henna. The primary exports were slaves, leather, gold, cloth, salt, kola nuts, animal hides, and henna. Neither black henna nor pre-mixed henna are approved for cosmetic use by the FDA. The primary exports were slaves, leather, gold, cloth, salt, kola nuts, and henna. The henna designs vary from very simple to highly intricate.