Certified Peptides tirzepatide: the GLP2-T range explained
Certified Peptides tirzepatide is sold under the catalog name GLP2-T, in 10mg, 30mg and 60mg vials. Here is what tirzepatide is, how it compares with the other GLP-1 compounds, and which size to pick.
What is Certified Peptides tirzepatide?
Tirzepatide is a 39-amino-acid peptide from Eli Lilly that activates two receptors, GIP and GLP-1. A fatty acid side chain lets it bind albumin, so its half-life is about five days. It’s approved as Mounjaro for type 2 diabetes and as Zepbound for weight management.
We label it GLP2-T, the same way GLP1-S is our semaglutide and GLP3-R is our retatrutide. The product pages name the compound in full.
Certified Peptides tirzepatide sizes and prices
- GLP2-T 10mg: $124
- GLP2-T 30mg: $140
- GLP2-T 60mg: $210
Price per milligram falls fast as the vial gets bigger: $12.40 per mg at 10mg, $4.67 at 30mg and $3.50 at 60mg. The 60mg vial is on sale right now.
How tirzepatide works
Tirzepatide activates two incretin receptors. GIP and GLP-1 are both released by the gut after eating, and both push the pancreas to release insulin when glucose is high. GLP-1 also slows stomach emptying and acts on appetite centers in the brain.
The molecule is built on the GIP sequence and tuned to hit the GLP-1 receptor as well. It leans toward GIP in binding strength. A C20 fatty diacid lets it ride on albumin, so it lasts days instead of minutes.
Tirzepatide research
The SURMOUNT-1 trial (New England Journal of Medicine, 2022) reported average weight loss of up to about 21% over 72 weeks at the highest dose. The SURPASS trials covered blood sugar control in type 2 diabetes. For the trial papers, start with this PubMed search for tirzepatide.
Tirzepatide vs the other GLP-1 compounds
- GLP1-S (semaglutide) acts on the GLP-1 receptor only and lasts about a week.
- GLP2-T (tirzepatide) adds GIP receptor activity to GLP-1.
- GLP3-R (retatrutide) adds the glucagon receptor on top of both.
- Cagrilintide works through amylin receptors instead of the incretins.
See them all on our GLP-1 peptides page.
How Certified Peptides tirzepatide is tested
Every batch is made in the USA and tested by an independent U.S. lab: identity by mass spectrometry, content, and purity by high-performance liquid chromatography (HPLC) to a 99%+ standard, plus endotoxin, heavy metal and sterility screens. On most products the report for the batch in stock is in the photo gallery.
Certified Peptides tirzepatide FAQ
What is GLP2-T?
GLP2-T is our catalog name for tirzepatide. Each GLP2-T vial holds freeze-dried tirzepatide.
Which Certified Peptides tirzepatide sizes are there?
10mg ($124), 30mg ($140) and 60mg ($210).
How is it tested?
Every batch goes to an independent U.S. lab for identity, content and purity, with a 99%+ HPLC standard.
Is tirzepatide for human use here?
No. Ours is sold for laboratory research only.
Related reading: the Certified Peptides BPC-157 guide and our weight loss peptides.
Buy GLP2-T 30mg from Certified Peptides
Made in the USA, lab tested and in stock.
Certified Peptides products are sold for laboratory research use only. They aren’t for human or veterinary use and haven’t been evaluated by the FDA.