Peptide Half-Life Comparison Chart

Pharmacokinetic half-life values for >40 indexed research compounds, sourced from published PK studies. Sort, filter, and compare to inform laboratory protocol design. For research reference only.

Research reference only. Half-life values are derived from published pharmacokinetic literature, not clinical dosing recommendations. Actual compound behavior varies by individual, route, and preparation. See full disclaimer.

Showing 54 of 54 entries
TB-500 (Thymosin β-4)Tissue Repair~10 days
range: ~10 days~14 days
CJC-1295 (with DAC)Growth Hormone Secretagogue~8 days
range: ~7 days~14 days
ACE-031Performance/Muscle~8 days
TesofensineMetabolic/Weight~8 days
range: ~7 days~9 days
SemaglutideMetabolic/Weight~7 days
RetatrutideMetabolic/Weight~6 days
PEG-MGFPerformance/Muscle~6 days
range: ~5 days~7 days
Vitamin B12Vitamin/Ancillary~6 days
TirzepatideMetabolic/Weight~5 days
Follistatin-344Performance/Muscle~2 days
HCGHormone/Fertility~30 hr
range: ~23 hr~36 hr
IGF-1 LR3Performance/Muscle~25 hr
range: ~20 hr~30 hr
MK-677 (Ibutamoren)Growth Hormone Secretagogue~24 hr
HMGHormone/Fertility~24 hr
L-CarnitineVitamin/Ancillary~16 hr
LiraglutideMetabolic/Weight~13 hr
AnamorelinGrowth Hormone Secretagogue~8 hr
range: ~7 hr~9 hr
BPC-157Tissue Repair~4 hr
Melanotan I (Afamelanotide)Melanocortins~3 hr
range: ~1.5 hr~3 hr
Melanotan IIMelanocortins~3 hr
range: ~1.5 hr~4 hr
PT-141 (Bremelanotide)Melanocortins~2.7 hr
range: ~2 hr~8 hr
BremelanotideMelanocortins~2.7 hr
IpamorelinGrowth Hormone Secretagogue~2 hr
Thymosin Alpha-1Immunomodulatory~2 hr
range: ~1.5 hr~3 hr
MOTS-cAnti-Aging~1.5 hr
range: ~1 hr~2 hr
HexarelinGrowth Hormone Secretagogue~1.2 hr
EpitalonAnti-Aging~1 hr
Des-1-3-IGF-1Performance/Muscle~1 hr
NAD+Vitamin/Ancillary~1 hr
TesamorelinGrowth Hormone Secretagogue~33 min
range: ~26 min~38 min
CJC-1295 (no DAC)Growth Hormone Secretagogue~30 min
range: ~10 min~30 min
GHRP-2Growth Hormone Secretagogue~30 min
range: ~30 min~40 min
GHRP-6Growth Hormone Secretagogue~30 min
range: ~15 min~1 hr
AOD-9604Metabolic/Weight~30 min
SemaxNeurological~30 min
range: ~15 min~30 min
SS-31 (Elamipretide)Anti-Aging~30 min
ThymulinImmunomodulatory~30 min
L-GlutathioneVitamin/Ancillary~30 min
HGHGrowth Hormone Secretagogue~18 min
range: ~15 min~30 min
DSIPNeurological~17 min
range: ~15 min~20 min
SermorelinGrowth Hormone Secretagogue~15 min
range: ~10 min~20 min
ARA-290Tissue Repair~10 min
GonadorelinHormone/Fertility~6 min
range: ~2 min~10 min
OxytocinHormone/Fertility~5 min
range: ~1 min~20 min
SelankNeurological~3 min
range: ~2 min~3 min
Kisspeptin-10Hormone/Fertility~3 min
range: ~2 min~6 min
VIPImmunomodulatory~2 min
range: ~1 min~2 min
GHK-CuTissue RepairUndetermined
CerebrolysinNeurologicalUndetermined
DihexaNeurologicalUndetermined
HumaninAnti-AgingUndetermined
KPVImmunomodulatoryUndetermined
LL-37ImmunomodulatoryUndetermined
5-Amino-1MQMetabolic/WeightUndetermined
About This Data

Half-life values are sourced from published pharmacokinetic studies indexed in PubMed. Established values come from dedicated human or animal PK trials. Estimated values are derived from available data with lower confidence. No Data indicates insufficient published PK data to report a half-life. All values are for laboratory research reference only — not clinical guidance.