Light Mountain Natural Hair Color: There is a danger of commercial chemical hair dyes. The National Cancer Institute estimates that 20% of the non-Hodgkinst lymphoma (the cancer that killed Jackie Kennedy-Onassis) is linked to the use of such dyes. Other cancers include bladder, breast cancer and leukemia have been linked to those products. Light Mountain Natural hair colors are pure botanical products and do not contain any of the chemicals linked to the cancer risk. They are not only safe, they provide great color and body to your hair! They come with detailed instructions, hat, gloves and a 100% Money Back Guarantee (not to exceed the Manufacturer Suggested Retail Price. Shipping and handling not included).