### Henna and Skin Reactions Henna, a natural dye made from the henna plant, is widely used for body art and hair coloring. While natural henna is generally safe, it can sometimes cause skin reactions, especially when additives are used. #### Natural Henna Natural henna, also known as red henna, is made from the leaves and stems of the henna plant. It creates a reddish-brown or coppery stain on the skin. Allergic reactions to natural henna are very rare. #### Black Henna Black henna, or blue henna, is often mixed with chemicals like p-phenylenediamine (PPD) to create a darker and longer-lasting stain. PPD can cause severe allergic reactions, including rashes, hives, and even anaphylactic shock. In the U.S., PPD is not approved for use on skin. #### Common Reactions - **Skin Irritation:** Redness, itching, and swelling can occur, especially with black henna. - **Allergic Reactions:** Symptoms include rashes, hives, and in severe cases, anaphylactic shock. - **Lead Contamination:** Some henna products may contain heavy metals like lead, causing poisoning and renal failure. #### Safety Tips - **Use Natural Henna:** Opt for natural henna without additives to minimize risks. - **Patch Test:** Always do a patch test before applying henna to a larger area. - **Check Ingredients:** Ensure the henna product lists all ingredients and avoid those with PPD. Henna is a beautiful and traditional way to decorate the body, but it's essential to be aware of potential risks, especially with black henna. Always choose natural products and perform a patch test to ensure safety.