IGF-1 LR3 half-life

IGF-1 LR3 has an elimination half-life of about 25 h (range 20–30 h). Use the free calculator to plot how IGF-1 LR3 levels rise and decay across your own doses.

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Reference data

Half-life
25 h (range 20–30 h)
Route
SC
Category
GH & IGF-1
Evidence
Anecdotal
Also known as
Long R3 IGF-1, LR3

No human PK; commonly cited 20–30 hours from reduced IGFBP binding.

How much IGF-1 LR3 remains over time

For a single dose with first-order elimination, half of what remains is cleared every 25 h.

Half-livesTime after doseRemainingEliminated
125 h50%50%
22.1 days25%75%
33.1 days12.5%87.5%
44.2 days6.25%93.75%
55.2 days3.13%96.88%

IGF-1 LR3 FAQ

What is the half-life of IGF-1 LR3?

IGF-1 LR3 has an elimination half-life of about 25 h (range 20–30 h) (SC). No human PK; commonly cited 20–30 hours from reduced IGFBP binding.

How long does IGF-1 LR3 stay in your system?

With first-order elimination, about 97% of a single dose is cleared after five half-lives, roughly 5.2 days for IGF-1 LR3. Individual clearance varies with dose, injection site, kidney function and other factors.

How long until IGF-1 LR3 reaches steady state?

With consistent repeated dosing, levels approach steady state after about 4 to 5 half-lives, or roughly 4.2 days to 5.2 days for IGF-1 LR3.

How reliable is this IGF-1 LR3 half-life?

Evidence level: Anecdotal. No published pharmacokinetic data; this is a community estimate and may be far off.

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