Sustanon vs Cypionate: The Honest Comparison for TRT (and Why US Protocols Pick Cypionate)
For steady-state TRT, single-ester testosterone cypionate beats Sustanon 250 for most men. Sustanon's four-ester blend was built around its short propionate fraction, which spikes fast and crashes early — making stable troughs harder to hold. Cypionate releases smoothly from one ester. That's why US protocols default to