Support estrogen metabolism, naturallyBlock herbal blend supports the body’s ability to process and get rid of extra estrogen in the first half of the cycle. Balanced estrogen levels support a healthy cycle so you can live and feel your best. Hormones ebb and flow throughout the cycle, meaning how you support them should, too. Proov Block herbal supplement is crafted to give your body the support it needs when it needs it most. The four herbal ingredients support your body’s natural estrogen metabolism during the phase of your cycle when estrogen balance is essential, the follicular phase. Directions. Take 1 or 2 servings of Boost daily for the first 14 days of your cycle. Best taken with food. The Science. DIM. Acts to support and control estrogen metabolism. Grape Seed Extract. Contains a compound that prevents estrogen production. Black Pepper Fruit Extract BioPerine. Helps maximize the effect of DIM. Who is this product for. Women who are looking to support natural estrogen metabolism and elimination. Women who are not on fertility medications