How to track a TRT cycle.

Why track at all

TRT isn't a cycle you run and end — it's an ongoing protocol you tune. The whole point of tracking is to be able to answer, months from now, questions like: "What did I feel like at 120 mg/week versus 140?", "Did my estradiol climb when I bumped the dose?", "Is my hematocrit trending up?" You can't answer those from memory. You answer them from a log.

Good tracking turns a vague sense of "I think I feel better" into a defensible decision you and your prescriber can make together. The four things worth logging are doses, bloodwork, body data, and subjective wellbeing — in that order of importance.

Doses & esters

Every injection, logged the moment you do it. The fields that matter:

• Amount and ester — e.g. 0.4 mL of testosterone cypionate, or the mg equivalent. If you ever switch ester (cypionate vs enanthate vs propionate) note it, because the half-life changes how you read your bloods.
• Date and frequency — once-weekly, twice-weekly (E3.5D), or daily protocols all produce different peak-to-trough profiles. Your log is your protocol.
• Any ancillaries — if you run an aromatase inhibitor or hCG alongside, log those on the same timeline so you can see the whole picture.

If you reconstitute anything, the reconstitution calculator handles the units-to-draw math.

Injection sites

Rotating injection sites reduces scar tissue and irritation from repeatedly hitting the same spot. The problem is remembering which site you used last — which is exactly the kind of thing a tracker should do for you. Log the site (delt, ventroglute, quad, etc.) with each dose and a simple rotation map tells you at a glance where you're due.

Bloodwork

Labs are where TRT tracking earns its keep. The markers most people watch with their prescriber:

• Total & free testosterone — are you actually in the range your protocol targets?
• Estradiol (E2) — testosterone aromatises to estrogen; this is the number that tends to move when you change dose.
• Hematocrit / hemoglobin — TRT can thicken blood over time, so this is a long-term safety trend worth watching.

The value of logging labs isn't the single reading — it's plotting the reading against your dose history. A jump in E2 means one thing in isolation and a very different thing when you can see it followed a dose increase three weeks earlier. Timing matters too: bloods are usually drawn at trough (right before your next dose) so the numbers are comparable run-to-run. When and how often to test is a clinical decision — talk to your prescriber.

Weight & composition

Bodyweight alone is noisy. What you want is the trend, plus composition: a slowly rising scale weight with a falling waist measurement is a very different story than the scale alone suggests. Log weight regularly (a smart scale that syncs automatically removes the friction), and take a few tape measurements — waist, chest, arm — monthly. Over a cycle those trend lines tell you whether the protocol is doing what you wanted.

Wellbeing & sides

The subjective stuff is easy to dismiss and genuinely important: energy, libido, sleep quality, mood, and any sides (acne, water retention, irritability). Score them quickly and tag the day. Three months later, when you're deciding whether a dose change was worth it, this is the data that tells you how you actually felt — not just what your labs said. The best decisions come from putting the felt experience next to the objective numbers.

Why spreadsheets break

Almost everyone starts with a spreadsheet. It works for about two weeks. Then:

• It doesn't decrement your vial, so you never quite know when you'll run out — until you do.
• It doesn't track site rotation, so that just lives in your head (badly).
• It won't chart E2 against your dose changes without manual fiddling every single time.
• It's miserable to update from your phone right after an injection, which is the only moment you'll reliably remember to log.

So the gaps creep in, and a log with gaps is a log you stop trusting. A purpose-built tracker closes those gaps: log the dose in two taps, the vial decrements itself, the site rotation updates, and your bloods plot against your protocol automatically. That's the entire reason Optimize exists.

FAQ

What should I track on TRT?

At minimum: every dose (amount, ester, date), the injection site, periodic bloodwork (total/free testosterone, estradiol, hematocrit), bodyweight and composition, and subjective wellbeing (energy, libido, sleep, mood). The dose log and bloodwork together are what let you connect a protocol change to how you felt and what your labs did.

How often should I get bloodwork?

That's a decision for you and your prescriber. A common shape is baseline labs, a follow-up roughly 6–8 weeks after any dose change once levels stabilise, then periodic monitoring. Logging the date and result next to your dose history is what makes the numbers interpretable later.

Do I need to rotate injection sites?

Rotating helps reduce scar tissue and irritation from repeated injections in one spot. Tracking which site you used and when makes rotation automatic instead of something you try to remember.