Darks Detergent features an updated, bio-based formulation that's specially designed to keep your dark and brightly colored laundry fresh and vibrant. Optimized for cold water cleaning and featuring a lighter weight texture for less messy dosing, this formula contains a blend of four powerful enzymes that target stains, dirt, and oil for a beautiful clean on everyday fabrics, from your favorite dark wash jeans to richly patterned blouses and bed linens.