Metabolic

The metabolic category covers the compounds studied in energy regulation, appetite signalling and mitochondrial function — the group most people mean when they search for peptides for weight loss. It divides into two distinct families that work on entirely different mechanisms.

Incretin receptor agonists

Semaglutide, tirzepatide and retatrutide are single, dual and triple receptor agonists respectively. Semaglutide acts on GLP-1 alone; tirzepatide adds GIP; retatrutide adds glucagon on top of both. Each successive generation engages more receptors, and the published literature on all three is extensive and still expanding. Cagrilintide is an amylin analogue studied alongside them rather than as a direct substitute.

Mitochondrial and fat-metabolism peptides

MOTS-C is a mitochondrial-derived peptide investigated for its role in metabolic homeostasis. 5-Amino-1MQ inhibits NNMT, a mechanism unrelated to receptor agonism. AOD-9604 is a fragment analogue of human growth hormone studied specifically for its metabolic rather than growth activity.

What to check before ordering

These compounds vary widely in molecular weight, which matters because reconstitution volume sets concentration. A 30 mg vial and a 5 mg vial reconstituted in the same solvent volume give concentrations six times apart. Our peptide calculator resolves that for any combination, and every lot’s certificate is in the COA library.

For laboratory research use only. Every product in this category is supplied strictly for in-vitro laboratory research. Nothing here is a drug, supplement or medical device, nothing is approved for human or veterinary use, and Cytera provides no dosing guidance of any kind.