How Long Does Retatrutide Last? Half-Life & Dosing Frequency
Retatrutide has a reported half-life of ~6 days. This page explains what that means for how long Retatrutide stays active, how quickly it clears the body, and how often it is dosed in research.
What Is Retatrutide's Half-Life?
The half-life of a compound is the time it takes for the amount in the body to fall to half its original level. For Retatrutide, research reports a half-life of ~6 days. A triple agonist targeting GLP-1, GIP, and glucagon receptors for powerful weight loss.
How Long Does Retatrutide Stay in Your System?
A compound is generally considered mostly cleared after about five half-lives. With a half-life of ~6 days, Retatrutide is largely cleared after roughly 30 days. Individual metabolism, dose, and dosing frequency can shift this estimate.
What This Means for Dosing Frequency
Research protocols commonly use Retatrutide 1x per week (Same day each week, any time of day). Dosing frequency is generally matched to the half-life and to how long the compound's effects last — peptides with shorter half-lives are often dosed more frequently, while longer-acting compounds may be dosed less often.
Frequently Asked Questions
What is Retatrutide's half-life?
In the research literature, Retatrutide is reported to have a half-life of ~6 days. Half-life is the time it takes for the amount of a compound in the body to fall to half of its original level.
How long does Retatrutide stay in your system?
As a general pharmacokinetic rule, a compound is mostly cleared after about five half-lives. For Retatrutide, with a half-life of ~6 days, that works out to roughly 30 days. Individual metabolism, dose, and dosing frequency can shift this.
How often is Retatrutide dosed?
Research protocols commonly use Retatrutide 1x per week. Dosing frequency is generally matched to the compound's half-life and to how long its effects last.