Compound Reference

Reconstitution math, sourced dosing, and honest pharmacokinetics for 30 common compounds

One page per compound: the reconstitution math, sourced dosing and titration schedules, honest pharmacokinetics (a curve only where human data exists), storage guidance, and the primary sources, with deep links into the calculators. These are references, not recommendations.

Half-life comparisonPHARMACOKINETICSMinutes to more than a weekPublished human half-lives, log time scale. One number decides the whole dosing rhythm.30 min2 h8 h1 day3 days1 wkTesamorelin38 minutesIpamorelin2 hoursThymosin Alpha-12 hoursPT-1412.7 hoursHGH (Somatropin)3 hoursSS-313 hoursHCG33 hoursTirzepatide5 daysRetatrutide6 daysMazdutide6.5 daysSemaglutide7 daysSurvodutide7 daysCagrilintide7.5 dayspeprecon.com

Compounds with no published human pharmacokinetics (CJC-1295, AOD-9604, BPC-157, TB-500, GHK-Cu, MOTS-c, KPV, Epithalon, DSIP, Semax, Selank, Melanotan I, 5-Amino-1MQ, Humanin, SNAP-8, NAD+, Glutathione) are deliberately absent from the chart above; their pages explain what is and is not known instead of plotting a rodent number as if it were a human one.

GLP-1 & incretins

Growth & repair

Sexual health

Hormonal & fertility

Longevity, immune & other