Used as a preservative that slowly releases small amounts of antimicrobial formaldehyde over time. Many dogs have or can develop formaldehyde allergies/sensitivities. It also may cause skin or eye irritation. Formaldehyde is linked to cancer.

A mild antiseptic, cleaner and disinfectant that is VERY drying to your dog's skin causing irritation to your dog's skin. It can affect your dog's nervous system and cause organ system toxicity. Many "dry" dog shampoos may use alcohol to quickly "dry" your dog. Yikes!