This is brand name fresh dated BSG Handcraft (formerly Crosby and Baker) food grade chemical packaged for use in home winemaking purchased directly from BSG. It is NOT the same stuff as sold in bulk for use in shampoos, soaps, and animal husbandry. Some of the bulk chems being sold here on eBay came from bankruptcy or truck wreck and have been sitting in a hot warehouse for years. This is one of the wine chems where freshness really matters. If your stuff is stale it won’t work well and the first hot day your bottles will begin to explode. Don’t risk your wine!