Clean People Laundry Detergent Sheets are scientifically formulated with clean ingredients to powerfully lift stains and leave you with fresh clothing. Our products are all made in Canada and the USA! You will NEVER find these nasty and dangerous ingredients in our products. 1,4 dioxane (carcinogen) Ethylene oxide (carcinogen) Synthetic dyes Optical brighteners Phosphates Parabens Formaldehyde Phthalates Works with all washing machines: Top Loaders, Front Loaders, and HE (High Efficiency). Works with Septic Tanks too!