Half-life reference / Low-confidence model input
IGF-1 LR3 half-life
The PinPoint library stores 24 hours (1 days) for IGF-1 LR3. This is the input behind the arithmetic below, not a measurement of your levels or how long an effect lasts.
Preclinical reference; values are extrapolated from rat data and marked low confidence.
Library snapshot, 2026-10-05: CompoundLibrary.swift:863, halfLifeHours: 24. Read the cited reference.
Reading this particular reference
The IGF-1 LR3 input is 24 hours, with an adjacent library comment describing roughly 20 to 30 hours. That comment is not an established human range: the source note states that the reference values are extrapolated from rats. Keeping these two pieces together prevents a neat one-day scalar from looking more certain than it is. A once-daily calendar happens to match the scalar, but that arithmetic coincidence cannot validate a human protocol.
The library comment gives roughly 20 to 30 hours; this is extrapolated context, not a validated human range. The library lists subcutaneous for tracking. A listed route is not proof that every input was measured through that route. The linked reference and its study context matter when interpreting the stored number.
IGF-1 LR3 decay table
Starting at an arbitrary 100%, each elapsed half-life divides the remaining modeled amount by two. The calculation is 100 × 2 raised to the power of minus elapsed hours divided by 24. It describes a single contribution with no additional entries. The percentages are not percentages of benefit, receptor activity, or symptom relief.
| Half-lives | Hours | Days | Remaining (rounded) |
|---|---|---|---|
| 0 | 0 | 0 | 100.0% |
| 1 | 24 | 1 | 50.0% |
| 2 | 48 | 2 | 25.0% |
| 3 | 72 | 3 | 12.5% |
| 4 | 96 | 4 | 6.3% |
What the listed schedules mean mathematically
The library labels are Once daily; Five times weekly. They describe available tracking patterns, not instructions. In an equal-input model, the limiting peak accumulation ratio is 1 ÷ (1 − 2 raised to minus interval divided by half-life). It compares a repeated pattern with one instantaneous input and assumes the same interval continues indefinitely.
- Once daily, if evenly spaced: 24 hours between entries; 50% of one contribution remains at that marker; limiting accumulation ratio 2.
- Five times weekly: no unique fixed interval is specified, so no accumulation ratio is assigned.
About five half-lives here is 120 hours, or 5 days. Under the same linear assumptions, that is approximately the approach to steady state. Changing amounts, missed entries, irregular spacing and absorption change the pattern. The calculation does not decide when to start, stop, or change anything.
From a reference curve to a dose history
PinPoint’s Home curve models your levels between doses from published half-life data. Drag to scrub modeled values at any timestamp, or preview 30 days of a dose pattern. Log injections with compound, dose, site, and pain level, and backfill past doses so the history is complete from day one.
The graph on this page is simpler: it isolates exponential elimination so you can inspect the arithmetic. PinPoint’s modeled curves are mathematical visualizations of published population averages and do not account for individual variation. A modeled amount is not a laboratory concentration.
Explore dose logging in PinPoint or compare library half-life inputs.
Questions, answered
Is the half-life of IGF-1 LR3 the same for everyone?
No. Half-life varies with the person, formulation and study context. The library comment gives roughly 20 to 30 hours; this is extrapolated context, not a validated human range. This library input is low confidence and is not an established individual human value.
How long until IGF-1 LR3 clears?
With the stored 24-hour scalar, five half-lives take 120 hours (5 days), leaving 3.125% of one modeled starting contribution. Exponential decay never reaches exactly zero. This is not a detection window, a washout instruction, or proof that effects have ended.
What does steady state mean?
For unchanged, equally spaced inputs in a linear model, steady state means the pattern repeats from one interval to the next. About five half-lives gives roughly 97% of the limiting pattern. Peaks and troughs still occur; steady state does not mean a flat line or a recommended regimen.
PinPoint is a tracking and unit-conversion tool, not a medical device. Modeled levels are mathematical illustrations, not blood tests or individual predictions. Medical decisions belong with your healthcare provider.