I’m a 1980’s has been competitive bodybuilder so I have always stuck with the common stack of Test, D-Ball in the off season and went with Deca and winstrol to cut down. The Test 400 is as good or better than the old Squibb and/or Rugby test brands that came from the manufacturer. How we got that authentic test, I still don’t know. But, the Test 400 gives immediate strength and just gives you that “look”. Just watch your sodium intake so you don’t look like the Pillsbury guy! Great product.