I believe IPs lab values come in within 1 -2 mg on his winstrol. and I am sure the 50mgs of BD have about the same discrepancy. You can ask alin as he was the only one licensed to manufature the BD product despite what BD's old partners claimed. They were scammers. The BD propduct is mad e by alin and he was the only one licensed to make the BD product.
Alin had an arrangement with IP and the BD p[roduct that IP sold was the real deal despite what anthony roberts said.
IP's winstrol has always been a top seller and it is genearally sold at a good price.
But see what alin can provide for the same price and myabe you should go with him.