Henna (Mehendi) Safety Inspection

Natural henna powder is yellowish-green and takes hours to stain the skin deep brown. "Instant" or "Black" henna is extremely dangerous, often containing PPD (a toxic hair dye) and industrial chemicals. 1. The Color and Smell Test: Natural henna powder is olive green or dull yellowish-green and smells like dried grass or hay. If the powder is "vibrant green" or "neon green," it contains industrial green dye. If it smells like kerosene or turpentine, it has been treated for faster color release. 2. The Solubility Test: Drop a spoonful of henna powder into water. Pure henna will stay green or turn brownish. If the water instantly turns bright green, blue, or red, artificial dyes have been added. 3. The Stain Test (Speed and Color): Natural henna takes at least 4-6 hours to produce a dark stain, which starts orange and turns reddish-brown. If a henna cone produces a deep maroon or black stain within 10-30 minutes, it contains toxic PPD. 4. The Patch Test (Safety Check): Always apply a small amount behind the ear or on the inner arm. If you feel any burning, itching, or redness within 24 hours, do not use the product. Natural henna is cooling; PPD-heavy henna is irritating.