Its chemicals, and though it contains no peroxide to actually add to the mix, peroxide is possibly produced by mixing the powder with water. In this way, companies do not have to disclose peroxide as an ingredient, if it is just a reactive by-product. Bigen Oriental Black #59 actually has good reviews on Amazon, so that tells me that the vast majority of users are satisfied, but like most, I too wish it didnt fade as quickly. I find that using shampoo often will fade it faster, as with any dye. I use it once a year then throw a rinse over it to "refresh" it if needed later on in the year. Im not affiliated with the company, nor getting paid to say anything--just stating my experiences with it.
