400 mg per millilitre is the point of this one - well above the 250 that defines most of the shelf. Dragon Pharma fits that into a 10 ml vial, four grams of testosterone enanthate in a single bottle.
Concentrations this high need more solvent to stay dissolved, so the oil is noticeably heavier through a needle, and products of this strength are the ones most likely to show crystals after cold storage. The hormone and ester are unchanged from the standard version: testosterone with a long heptanoate chain, injected intramuscularly and releasing as a depot.
