Clean you can see. Softness you can feel. HE stands for High Efficiency, the next generation of washers that save water and energy. There are two types of HE washers, front and top loading. Tide HE is formulated to work in both. Since HE washers work differently, they require a specially designed detergent like Tide HE. Moisture resistant cartons--with moisture guard protection for less clumping so your powder stays fresh and free-flowing. Ingredients include biodegradable surfactants and enzymes. 30 Loads Concentrated, Use 1/3 Less High Efficiency Formula