Steroid Plotter

These curves are simplified half-life estimates, not bloodwork. They do not tell you what to take. Read the disclaimer.

Test C (Testosterone cypionate) plotter

Very close to enanthate. Slightly longer half-life and a bit less parent hormone per milligram (~69%). The two esters overlay closely at the same schedule.

t½ 5dTmax 2d69% parentTestosteronemg

Also called Testosterone cypionate, Test Cyp, Cypionate, Test Cypionate.

Compare with Test E, Test P, Test U.

Ester fraction ~0.69 from testosterone ester tables; half-life ~5 d from the steroidplot/Behre-era community PK set.

Your cycle
Dose, ester, and frequency. The chart is remaining active amount, not serum concentration. To step a dose up, add another row of the same compound with a later start day.
t½ 5dTmax 2d69% parent
Peaks, troughs, and half-life
Estimated remaining active mg. Washout continues after the last dose. Mixed IU and mg protocols are not summed.

Testosterone cypionate

Peak

359 mg

Trough

292 mg

Swing

19%

~Steady state

25d

~Washout

27d

Start from a protocol
Fills the form with a common stack. Edit the numbers after. Educational sketch, not a recommendation.
Saved locally
Stored in localStorage on this device. Reload a saved protocol from this list.

No saved protocols in this browser yet.

Cycles that include this

beginnerbulkwiki
Wiki first cycle — Test C 500
Same 500 mg/week template on testosterone cypionate, the usual US ester.
Source: r/steroids wiki — Your First Cycle

Same wiki first-cycle protocol as Test E. Cypionate and enanthate overlay closely at this schedule.

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beginnertrtexample
TRT Test C twice weekly
100 mg testosterone cypionate every 3.5 days.

Source: Tool-authored example

Tool-authored example. Replacement-style sketch, not a blast.

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