Five hundred milligrams in a single millilitre sits near the practical ceiling for nandrolone decanoate in oil, and that is what fills this 10 ml Dragon Pharma vial.
Holding that much steroid in solution takes a substantial share of co-solvents such as benzyl benzoate, and the result is a noticeably viscous liquid that many find less comfortable than the standard strengths. What is bought in return is volume: the same quantity of hormone occupies a fraction of the space. The ester is the familiar long decanoate chain, unchanged from the weaker preparations.