How Long Does MK-677 Last? Half-Life & Dosing Frequency

MK-677 has a reported half-life of ~24 hours. This page explains what that means for how long MK-677 stays active, how quickly it clears the body, and how often it is dosed in research.

What Is MK-677'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 MK-677, research reports a half-life of ~24 hours. An orally active GH secretagogue that increases IGF-1 and GH levels.

How Long Does MK-677 Stay in Your System?

A compound is generally considered mostly cleared after about five half-lives. With a half-life of ~24 hours, MK-677 is largely cleared after roughly 120 hours. Individual metabolism, dose, and dosing frequency can shift this estimate.

What This Means for Dosing Frequency

Research protocols commonly use MK-677 1x daily (Evening or before bed). 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 MK-677's half-life?

In the research literature, MK-677 is reported to have a half-life of ~24 hours. 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 MK-677 stay in your system?

As a general pharmacokinetic rule, a compound is mostly cleared after about five half-lives. For MK-677, with a half-life of ~24 hours, that works out to roughly 120 hours. Individual metabolism, dose, and dosing frequency can shift this.

How often is MK-677 dosed?

Research protocols commonly use MK-677 1x daily. Dosing frequency is generally matched to the compound's half-life and to how long its effects last.

Research Sources

Related MK-677 Resources