Peptide Research Library

KPV is a very short peptide studied mainly for anti-inflammatory activity, particularly in the gut. Chemical identity & structure. KPV is a

LL-37 is a naturally occurring human peptide with a real and well-studied role in innate immunity — and a more complex, double-edged biology

VIP is a naturally occurring signaling peptide with a wide range of physiological roles and a synthetic counterpart that has been studied cl

Oxytocin closes Batch 2. It is unusual here because it is both a long-approved clinical drug for one use and an active subject of behavioral

IGF-1 LR3 is widely discussed in growth-and-recovery research contexts. It is a modified version of a natural human growth factor, and the m

Follistatin 344 is marketed heavily around muscle growth, so a careful look at what it is and what the evidence actually supports is importa

Cagrilintide is part of the modern weight-management research landscape, usually discussed in combination with semaglutide. Chemical identit

Cerebrolysin is unusual in this library: it is not a single defined peptide but a complex biological preparation, and that distinction is th

Mazdutide is one of the newer dual-agonist incretin compounds, part of the same research wave as tirzepatide and retatrutide. Chemical ident

Survodutide is another GLP-1/glucagon dual agonist, notable for a research focus that extends beyond weight management into liver disease. C

Tesofensine is sold and discussed alongside weight-management peptides, so it belongs in this library — but it is important to be clear abou

Adipotide is marketed as a fat-loss peptide. Its mechanism is genuinely distinctive — and its safety record is the reason this monograph is

P21 is a nootropic-category research peptide whose evidence base is entirely preclinical — the most important fact to establish up front. Ch

FOXO4-DRI is marketed within the "longevity" and senolytic space, which makes a careful, honest read of its actual evidence base essential.

ARA-290 is a research peptide with a specific, well-defined scientific rationale and a genuine clinical-research history. Chemical identity

Pinealon belongs to a family of very short peptides — the "peptide bioregulators" — and the shape of that family's evidence base is the key

Cardiogen is another of the short "peptide bioregulators", marketed in a cardiovascular context. The same evidence caveats that apply to the

Vesugen completes the set of short "peptide bioregulators" in this library, with a marketed focus on the vascular system. Chemical identity

Thymalin is an immune-focused peptide preparation with a long history of use in some countries, and — like cerebrolysin — it is a preparatio

SLU-PP-332 closes the library. It is sold in the research-compound market alongside metabolic peptides, so it belongs here — but it is impor