We don’t use any dyes in our ECOS products. The production and use of dyes have can harm both environmental and human health. Commercial dyes contain compounds like benzidine, which is known to be carcinogenic, or cancer-causing. Most dyes bioaccumulate (become concentrated in the body) and are not readily biodegradable formula in the environment. Dyes almost never help a product work better; they’re simply added for visual appeal. We make our products using a principle that’s fundamental to green chemistry: Don’t use unnecessary additives.