Arm & Hammer Deep Clean Stain Formula is a detergent that offers a powerful cleaning solution. It features a Sure Lock child-resistant closure for safety and utilizes pH power technology to effectively penetrate and lift deep stains and dirt between fibers. Designed to work in all water temperatures, it is compatible with high-efficiency and standard washing machines. The formula is also environmentally conscious, as it is not tested on animals, is safe for septic systems, and the packaging is recyclable through TerraCycle programs. Additionally, it supports cleanliness in cold water applications.