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Peptide Onset Times
Onset time refers to how quickly a peptide produces measurable effects in research conditions.
Distribution
Compounds grouped by onset
Fast
7
- · Semax
- · Selank
- · PT-141
- · DSIP
- · Adamax
- · Kisspeptin
- · Oxytocin
Moderate
8
- · MOTS-c
- · TB-500
- · BPC-157
- · NAD+
- · Melanotan II
- · KPV
- · SS-31
- · AOD-9604
Gradual
8
- · Retatrutide
- · GHK-Cu
- · CJC-1295 + Ipamorelin
- · Tesamorelin
- · AHK-Cu
- · 5-Amino-1MQ
- · Dihexa
- · SNAP-8
Cumulative
1
- · Epitalon
Comparative Bar Chart
Onset by compound
Bars represent approximate time-to-measurable-effect from research-literature averages — visual comparison only.
Semax
Fast
Selank
Fast
PT-141
Fast
DSIP
Fast
Adamax
Fast
Kisspeptin
Fast
Oxytocin
Fast
MOTS-c
Moderate
TB-500
Moderate
BPC-157
Moderate
NAD+
Moderate
Melanotan II
Moderate
KPV
Moderate
SS-31
Moderate
AOD-9604
Moderate
Retatrutide
Gradual
GHK-Cu
Gradual
CJC-1295 + Ipamorelin
Gradual
Tesamorelin
Gradual
AHK-Cu
Gradual
5-Amino-1MQ
Gradual
Dihexa
Gradual
SNAP-8
Gradual
Epitalon
Cumulative
FastModerateGradualCumulative
Onset Rise Curves
Time to measurable effect
Theoretical first-order rise (1 − e−t/τ) per onset band, plotted over the first 6 hours. Visual model only.
Fast (~10 min)
Moderate (~30 min)
Gradual (~90 min)
Cumulative (~240 min)
Comparison Table
Onset across the library
| Peptide | Onset | Half-Life |
|---|---|---|
| Retatrutide | Gradual | Long |
| GHK-Cu | Gradual | Short–Moderate |
| MOTS-c | Moderate | Short |
| TB-500 | Moderate | Moderate |
| BPC-157 | Moderate | Short–Moderate |
| Semax | Fast | Short |
| Selank | Fast | Short |
| PT-141 | Fast | Moderate |
| CJC-1295 + Ipamorelin | Gradual | Moderate–Long |
| NAD+ | Moderate | Short |
| Melanotan II | Moderate | Moderate |
| DSIP | Fast | Short |
| Tesamorelin | Gradual | Short–Moderate |
| AHK-Cu | Gradual | Short–Moderate |
| KPV | Moderate | Short |
| SS-31 | Moderate | Short |
| AOD-9604 | Moderate | Short |
| 5-Amino-1MQ | Gradual | Short |
| Dihexa | Gradual | Moderate–Long |
| Epitalon | Cumulative | Short |
| Adamax | Fast | Short–Moderate |
| Kisspeptin | Fast | Short |
| Oxytocin | Fast | Short |
| SNAP-8 | Gradual | Short |
Why It Matters
Structuring research timelines
- →Helps structure research observation windows
- →Aligns expectations between researchers
- →Improves comparison between compound classes