Peptide Research Library

Tirzepatide is the first dual-incretin agonist to reach wide use, and its trial data has reset expectations for the class. This monograph co

Retatrutide is the newest of the headline incretin compounds and the least mature in terms of evidence. This monograph is deliberate about w

Human growth hormone is not a "peptide" in the short-chain sense most of this library covers — it is a full protein hormone — but it sits at

NAD+ is included in this library because it is widely sold and discussed alongside peptides — but it is important to start with what it is n

MOTS-c is one of the more scientifically interesting compounds in this library because of where it comes from — but the human evidence base

TB-500 is widely discussed alongside BPC-157 as a "repair" compound. This monograph clarifies what TB-500 actually is and how it relates to

Ipamorelin is one of the most-discussed growth-hormone-secretagogue peptides, usually praised for its selectivity. This monograph covers wha

GHK-Cu is unusual in this library — it is a naturally occurring molecule with a genuine published research base, particularly in skin scienc

PT-141 is distinctive in this library because, unlike most research peptides, it has an approved pharmaceutical form. This monograph covers

Thymosin alpha-1 is an immune-modulating peptide with a genuine clinical footprint in several countries — a stronger evidence position than

Thymosin beta-4 is the full endogenous protein behind the popular "TB-500" research product. Reading this monograph alongside the TB-500 mon

CJC-1295 is one of the most-discussed growth-hormone-peptide compounds, and also one where a single naming distinction — "with DAC" versus "

Selank is a synthetic peptide studied mainly for anxiety-related and cognitive endpoints. Its evidence base has a specific characteristic wo

Semax is a synthetic peptide studied for cognitive and neuroprotective endpoints. As with Selank, the shape of its evidence base is as impor

Epithalon is one of the most aggressively marketed "anti-aging" peptides, which makes an honest read of its evidence base especially importa

Tesamorelin closes out Batch 1 because it is the growth-hormone-axis peptide with the strongest regulatory and trial record — a useful refer

Melanotan II is one of the more widely sold research peptides, and also one where the safety record deserves as much attention as the pharma

Sermorelin is one of the longest-standing growth-hormone-axis peptides, with a clinical history that distinguishes it from the newer secreta

Hexarelin is one of the growth-hormone-releasing peptides, notable for its potency and for cardiac effects reported separately from its GH a

GHRP-2 is one of the classic growth-hormone-releasing peptides, frequently studied and discussed alongside GHRP-6 and the GHRH analogs. Chem

GHRP-6 is the GHRP most associated with a strong appetite effect, which is its most distinctive characteristic relative to the rest of the f

AOD-9604 is widely marketed as a "fat-loss peptide", which makes an honest read of its actual trial record especially important. Chemical id

Kisspeptin is a naturally occurring neuropeptide with a well-defined role in reproductive physiology and a genuine, growing human research l

5-Amino-1MQ is sold and discussed alongside peptides, so it belongs in this library — but it is important to begin with what it is not. Chem

DSIP is marketed largely for sleep, which makes a careful look at its actual evidence base important. Chemical identity & structure. DSIP de

Dihexa is one of the most aggressively marketed nootropic peptides, and the gap between the marketing and the evidence is the most important

Humanin is, like MOTS-c in Batch 1, a mitochondrial-derived peptide — a scientifically interesting class with a research base that is still

SS-31 is one of the more clinically advanced compounds in this library, with a genuine pharmaceutical development program behind it. Chemica