Right here under my bed i have legit pharmaceutical grade ampoules allegedly containing 250 mg/ml of enanthate but in all reality there is less than 100mg of enanthate in each of them.
Blood levels compared exactly 48 hours post shot with the homebrew test e and my conclusion is that those ampoules contain less than 50% of the labeled concentration.
yes, it can happen, if the company is from like a 2nd or a 3rd world country (in this case southeast europe).