Topic

Hormone replacement, fertility and sexual-health compounds.

Testosterone esters, hCG and gonadorelin, the aromatase inhibitors and SERMs, and the sexual-health compounds — the group where bloodwork does the talking.

More than anywhere else in the library, this is a category where the number that matters is a lab result, not a dose. Total and free testosterone, oestradiol, LH and FSH, haematocrit and PSA are what a prescriber reviews, and they are only interpretable if you also recorded when you last injected — a trough draw and a peak draw off the same protocol look like different people.

All 24 compounds in this topic

Guides for this topic

Run the numbers

Common questions

When should bloodwork be drawn?

Relative to your injection, and consistently. Most review protocols draw at trough, immediately before the next dose, because that is the reproducible point in the cycle. What matters most is that every draw sits at the same point, so the trend means something.

What does a prescriber actually want to see?

Dose and frequency, adherence, the labs with their reference ranges and dates, and any side effects against the timeline. Records for your prescriber covers what to bring and the order it usually gets asked for.

Are the ranges here clinical guidance?

No. Several compounds in this group do have approved products, and where one exists its label is linked on the compound page. That label governs. See the editorial policy for how sources are chosen.

Every figure on these pages is sourced the same way — see the editorial policy for the hierarchy, and the full library for all 208 compounds.

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