The Tide with Acti-Lift formula contains technologies to help lift off stains with ease. Acti-lift has 3 parts:Cleaning enzyme – helps provide deep cleaning of fibers so stains lift off more easily Cleaning polymer - designed to boost Tide’s already great cleaning surfactant to help break-up dry stains and lift them from fabrics Whiteness booster – helps to give a great whiteness result – even in just one wash. The smart alternative to chlorine bleach. Tide with Bleach Alternative uses active enzymes to break down and help remove stains while whitening whites. Because it is not chlorine based, Tide with Bleach Alternative is safe to use on colors too. In fact, the Tide ColorClean formula actually reduces chlorine in the wash to help keep bright colors from fading.