Weight Loss Peptides

This is our full range of weight loss peptides and metabolic research compounds: the GLP-1 family (semaglutide, tirzepatide, retatrutide, survodutide, mazdutide and cagrilintide), the MC4 receptor agonist setmelanotide, the growth hormone fragment AOD-9604 and the mitochondrial peptide MOTS-c.

Looking for something else? See our GLP-1 peptides and anti-aging peptides, or browse all research peptides.

What are weight loss peptides?

Weight loss peptides is a broad label for compounds studied in obesity and metabolism research, and they work in very different ways. The GLP-1 family acts on gut hormone receptors that control appetite and insulin. Setmelanotide acts on MC4R, the brain’s appetite receptor, further down the same pathway leptin uses.

AOD-9604 is a piece of growth hormone studied for fat breakdown, and MOTS-c is a peptide coded in mitochondrial DNA that acts on glucose use inside muscle cells. That spread lets a lab compare a hormone-driven approach with a cell-energy approach in the same model.

For the published research behind this range, start with this PubMed search.

Weight Loss Peptides in our range

How to choose weight loss peptides

Decide whether you’re studying appetite and hormones, which points to the GLP-1 compounds and setmelanotide, or fat tissue and cell energy, which points to AOD-9604 and MOTS-c.

If liver fat is part of the question, look at the dual agonists. Survodutide, mazdutide and retatrutide all include glucagon receptor activity, which acts directly on the liver.

Weight loss peptides: formats and prices

There are 24 products in this range: 22 freeze-dried vials and two blend vials. Prices run from $30.00 to $400.00. 12 of them are on sale right now. Every product page lists the amount, the format and the SKU, so you can compare like for like before you order.

Purity and testing for our weight loss peptides

Every batch in this range is checked by HPLC-MS, which measures purity and confirms the molecular weight in one test. Most products test above 99% purity, and each product page states its figure. Vials are vacuum-sealed after freeze-drying to keep air and moisture out.

Store sealed vials in the freezer at -20°C and reconstitute with sterile bacteriostatic water when you’re ready. Every vial page lists the concentration you’ll get for each volume of water. Mixed vials go in the fridge at 2 to 8°C and should be used within 28 days.

Bulk pricing on weight loss peptides

Most products here come in packs as well as single vials. Pick 2, 5, 10, 15 or 20 in the Quantity menu on the product page, and the price per unit drops by 10% to 30%. Packs ship as individual sealed vials, so you only open what you need.

Weight loss peptides FAQ

Are your weight loss peptides in stock?

Yes. Everything listed here is in stock and ready to ship.

Are weight loss peptides for human use?

No. Everything we sell is for laboratory research only and isn’t approved for human or veterinary use.

How pure are they?

Most test above 99% by HPLC-MS. Each product page shows the purity figure for that product.

Is there a bulk discount?

Yes. Choose a pack of 2 to 20 in the Quantity menu on any product page and save between 10% and 30%.

Do I need anything else?

Sterile bacteriostatic water to reconstitute the vials, and a fridge and freezer for storage.

Buy weight loss peptides online

Pick a product above, add it to your cart and check out in a couple of minutes. Everything on this page is in stock, and bulk packs bring the price down further. Not sure this is the right range? See all research peptides.

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

Showing 1–16 of 24 results