How estimated levels work
Enhanced Training Studio can draw a chart of how much of each compound is likely still active in your body, based on your logged doses and the compound's half-life. It's a useful picture of peaks, troughs and missed doses, but it's an estimate from a simple model, not a blood level.
Note: estimated levels are for your own record keeping. They aren't a measurement and aren't medical advice.
The idea: half-life
A half-life is the time it takes for half of a substance to be cleared. After one half-life, half of a dose remains; after two, a quarter; after three, an eighth; and so on.
The app adds up what remains of every dose you've logged. For each dose:
amount remaining = dose × 0.5 ^ (time since the dose ÷ half-life)
So each injection adds a step up, and the total then falls away until the next one. Planned future doses are shown as a dashed line.
What it's good for
- Seeing the shape of your protocol: how big the swings are between doses, and how a change in frequency smooths them out.
- Spotting missed or late doses: they show up as a dip.
- Reading blood tests in context: with a licence, each test is marked on the chart where it was taken.
Its limits
- It's only as good as the half-life you enter. Published half-lives are averages and vary between people. Use the figure from your prescriber or the product information.
- It shows amount remaining, not a blood concentration. Absorption, body composition and individual metabolism all affect real blood levels, which only a blood test measures.
- It depends on your log. A dose that isn't logged isn't in the chart.
Use it to understand patterns, and use blood tests with your doctor for actual levels.
Doing it in Enhanced Training Studio
Add a half-life to a compound in Setup, and the chart appears on the Today screen. This is part of the free edition. With a licence, your blood tests are marked on the same chart.