Taxonomy

Peptides by chemical class

Groupings by molecular class, receptor family or formulation. There are no research-area categories here and there will not be — grouping compounds by what they are for implies a use, and that is what research-use supply excludes.

Growth hormone secretagogues and GHRH analogsGHRH analogs and secretagogues in the Kovagen catalogue — CJC-1295 no DAC, sermorelin, tesamorelin and ipamorelin — and the structural differences between them.
Melanocortin peptides and α-MSH fragmentsMelanocortin-class peptides in the Kovagen catalogue — melanotan II, PT-141 and KPV — grouped by structural relationship to alpha-melanocyte-stimulating hormone.
Thymosin peptides: alpha-1 and beta-4Thymosin peptides in the Kovagen catalogue — thymosin alpha-1 and TB-500, the full-length thymosin beta-4 sequence — and why the two are unrelated in structure.
Mitochondrial and mitochondria-targeting peptidesMOTS-c and SS-31 in the Kovagen catalogue — one encoded in the mitochondrial genome, one a synthetic tetrapeptide designed to concentrate at the inner membrane.
Multi-compound research blendsBlends in the Kovagen catalogue: two or more compounds in a single vial. What a blend is structurally and why per-component quantitation is the analytical question.

Why some compounds are in no collection

Ten compounds in the catalogue fit none of these classes cleanly — BPC-157, DSIP, Epitalon, Kisspeptin-10, Selank, Semax, SNAP-8, IGF-1 LR3 and the two coded research candidates. Rather than invent a home for them, they are left out of this taxonomy and reached from the catalogue, the peptides index or their own compound reference pages under science.

A grouping that exists to look complete is worse than an honest gap. The catalogue's primary navigation is search for exactly this reason.

For laboratory research use only. Not for human or veterinary consumption.