Henna is one of the oldest cosmetics ever used and is very safe. We at ReMarkable Blackbird apply henna to people age six and over. Henna can be a wonderful blessing for pregnant women. Please let us know if you are expecting as we use a special blend of essential oils in preparing for these appointments. These statements have not been evaluated by the FDA. Please use common sense, and if you are concerned we encourage you to talk to your doctor before getting henna. There is NO such thing as "black henna." PPD hair dye is added to henna to produce a jet- black stain in just minutes, and is often done in touristy beach areas and is common in some countries. It is a toxic chemical. It can cause allergic reactions, permanent scars, and internal damage. True henna smells grassy and herbal and is a green paste that stains an orange-red-brown which takes hours to develop. ReMarkable Blackbird only uses natural henna and 100% essential oils for a beautiful color and a safe experience. ***Photos in the gallery section that appear black show paste still on.