Containing a unique, patented ingredient, Swanson Ultra MegaNatural BP is a new kind of grape seed extract. Sure, it's a great antioxidant like any grape seed extract, but MegaNatural-BP has a distinct molecular difference that unleashes the true potential of its polyphenolic compounds.Standardized to 90% polyphenolsOffers antioxidant support to neutralize free radicalsSupports cardiovascular health100% MONEY BACK GUARANTEE – Our products reflect our commitment to giving you the best quality and service at the best price. We guarantee that every product you purchase is made from the purest, freshest nutrients and meets the highest quality standards. If you aren’t completely satisfied with any product(s) purchased within the last 30 days, simply return the unused portion to us for a full refund.Per GMP guidelines set forth by the FDA, most products are formulated for 24 months from the date of manufacture. Liquids and probiotics are formulated for 12 months.