← Research GuidesDURATION
Half-Life Comparison
Half-life is the time required for a compound's concentration in a system to reduce by half.
Distribution
Compounds grouped by duration
Short
9
- · GHK-Cu
- · MOTS-c
- · BPC-157
- · Semax
- · Selank
- · NAD+
- · DSIP
- · Tesamorelin
- · AHK-Cu
Moderate
3
- · TB-500
- · PT-141
- · Melanotan II
Long
1
- · Retatrutide
Why It Matters
Half-life shapes everything from study design to comparative analysis. Shorter half-lives mean denser observation windows; longer half-lives suit cumulative-effect models.