1-ad is a decent product, but it has been greatly improved upon w/ 1-test cypionate and proplycarbonate. These esters create a big advantage over regular 1-ad. With these liposoaml esters all you need is 50mg per day vs. 300-900 of 1-ad. Liposomal 4-ad at 357mg was shown to elevate test levels as much as 5000mg of oral 4-ad.