Assuming you’re taking weekly injections, how does the half-life of testosterone cypionate affect your levels throughout the week?


The half-life of testosterone cypionate is 8 days.

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If the half-life is 8 days, after 7 days the level in your body would reduce to approximately half of what it was at the beginning of the week. Technically the level is a little more than half, it would take 8 days for the level to reduce to half, but it is close enough it’s basically half by the end of the week.