Metabolic
Tirzepatide
Also sold as Tirz
Dual GIP and GLP-1 receptor agonist. A long peptide that is expensive to make well, which is why underfilled vials are the usual way it fails.
- Vendors tested
- 12
- of 13 listed
- Samples passed
- 92%
- of 13 results
- Median price
- $6.40/mg
- 10 mg vials typical
Who leads Tirzepatide
Vendors with independent results for Tirzepatide, ordered by overall score. The pass counts and average purity shown are for this compound only, judged against 99.5% purity, confirmed identity, and fill within 25% of the label.
- 1 Atomik Labz 2 of 2 passed, latest Oct 21, 2026, sold as Peptide 2 (T) Buy Peptide 2 (T) at atomiklabz.com 94.9 Overall
- 2 Crush Research 1 of 1 passed, latest Aug 26, 2026, sold as Double Agonist 20mg Buy Double Agonist 20mg at crushresearch.com 90.4 Overall
- 3 Ion Peptides 1 of 1 passed, latest Sep 19, 2026, sold as ION-2T Buy ION-2T at ionpeptide.com 89.9 Overall
- 4 ezPeps 1 of 1 passed, latest Aug 21, 2026, sold as GLP-2-TZ Buy GLP-2-TZ at ezpeps.com 89.4 Overall
- 5 Peptide Partners 1 of 1 passed, latest Sep 28, 2026 Buy Tirzepatide at peptide.partners 87.9 Overall
- 6 Modern Aminos 1 of 1 passed, latest Jun 5, 2026, sold as MA-2TZ Buy MA-2TZ at modernaminos.com 86.5 Overall
- 7 Peptidology 1 of 1 passed, latest Aug 1, 2026 84.1 Overall
- 8 Peptide Maxxing 1 of 1 passed, latest Sep 3, 2026 82.5 Overall
- 9 Skye Peptides 1 of 1 passed, latest Sep 1, 2026, sold as GLP-1 T (GLP-1 + GIP 2RA) Buy GLP-1 T (GLP-1 + GIP 2RA) at skyepeptides.com 81.7 Overall
- 10 Southern Aminos 1 of 1 passed, latest Aug 18, 2026 79.5 Overall
- 11 Ascension Peptides 1 of 1 passed, latest Jul 8, 2026 77.7 Overall
- 12 Polaris Peptides 0 of 1 passed, latest Aug 4, 2026 Buy Tirzepatide at polarispeptides.com 73.3 Overall