THE CATEGORY
Peptides for Fat Loss — The Research Landscape
"Peptides for fat loss" covers two quite different generations of compound, and conflating them is the most common mistake in the category.
The older generation is the growth-hormone fragments and metabolic peptides — AOD-9604, fragment 176-191, MOTS-c, 5-Amino-1MQ. Their literature is thinner, mostly preclinical, and the effect sizes reported are modest. They remain research subjects for exactly that reason.
The newer generation is the incretin receptor agonists — the compounds people now mean when they say GLP-1. Tirzepatide engages two incretin receptors; retatrutide engages three. Their published literature is the largest in the metabolic space, which is why the category has reorganised itself around them.
Of these, MOTS-c, retatrutide and tirzepatide are compounds we hold in stock in South Africa as HPLC-verified research vials with a Certificate of Analysis per batch. That is a statement about inventory and documentation, not about what any of them does in a person — we do not make that claim and would not be entitled to.
If you want the mechanism rather than the shopping list, /glp-1/glp-1-for-fat-loss covers how the receptor agonism actually works and where the regulatory line sits.
What we hold in stock
Read live from inventory. Supplied for laboratory research purposes only.
Retatrutide
LY3437943 (GLP-1/GIP/Glucagon Receptor Triagonist)
Tirzepatide
LY3298176 (GIP/GLP-1 Receptor Dual Agonist)
MOTS-c
Mitochondrial Open Reading Frame of the 12S rRNA-c
Buying quantity? Trade pricing is 25% off from 10 vials — build and price an order in the browser.
Questions
Which peptides are most studied for fat loss?
The incretin receptor agonists — tirzepatide (dual GIP/GLP-1) and retatrutide (triple agonist) — carry by far the largest published metabolic literature. The older fragments, AOD-9604 and fragment 176-191, have thinner and mostly preclinical evidence.
Do you sell peptides for weight loss?
We supply research compounds for laboratory use, and several of them appear in metabolic research. They are not sold for weight loss, are not medicines, are not registered with SAHPRA, and are not for human or veterinary use.
What is MOTS-c?
A mitochondrial-derived peptide studied in metabolic and exercise-physiology research. It is a different mechanism entirely from the incretin agonists and is held in stock as a 10 mg research vial.
How do I check purity before ordering?
Every batch is verified by HPLC and mass spectrometry at a third-party laboratory, and the batch code on any vial resolves to its own Certificate of Analysis at livingwaterlabs.co.za/verify — no account needed.
Read next
Every compound we supply is sold strictly for laboratory research purposes only. Not for human or veterinary use, not a medicine, and not registered with SAHPRA. Nothing on this page is medical advice, a dosing instruction or a claim of any outcome.