It'S Pure Organic Henna Hair Dye in Chestnut | 100% Natural, Vegan, & Gluten Free | PPD Free Hair Dye, Ammonia Free, Resorcinol Free, & Peroxide Free | Volumising, Strengthening, & Revitalising |. ORGANIC & NATURAL HAIR DYE: We are the first herbal hair dye range to be Certified Organic by The Soil Association, so you know you're in good hands.