Tirzepatide Purity: 10731 Lab Tests Across 1651 Identified Manufacturers

675 studies on Tirzepatide curated from PubMed, ClinicalTrials.gov, and EuropePMC. Updated daily.

Bottom line: TitrateLab currently tracks 10,731 published third-party lab tests of Tirzepatide across 1,651 identified manufacturers. Among reports with a positive numeric purity result, the average is 99.72%. Within this published corpus, 12 positive purity results were below 90%, and 463 reports showed measured quantity more than 10% below the label claim. These are batch-level observations, not guarantees of product identity, safety, or vendor quality.

Tirzepatide average prices

As of 2026-09-03, vendor-blind retail asking-price averages for the US delivery market, calculated from the same in-stock exact-strength cells as the Peptide Price Index. Shipping is excluded.

Strength Average / vial Observed range / vial Average / mg Coverage
5 mg $65.00 $65.00–$65.00 $13.00 1 source · 1 offer
10 mg $12.14 $6.00–$23.50 $1.21 7 sources · 7 offers
15 mg $15.08 $7.50–$29.00 $1.01 6 sources · 6 offers
20 mg $13.33 $9.50–$26.00 $0.67 6 sources · 6 offers
30 mg $16.50 $13.00–$29.00 $0.55 8 sources · 8 offers
40 mg $20.00 $17.00–$23.00 $0.50 4 sources · 4 offers
45 mg $31.50 $31.50–$31.50 $0.70 1 source · 1 offer
50 mg $23.00 $22.50–$23.50 $0.46 2 sources · 2 offers
60 mg $27.50 $22.50–$36.50 $0.46 8 sources · 8 offers
100 mg $45.50 $45.50–$45.50 $0.46 1 source · 1 offer
120 mg $520.00 $520.00–$520.00 $4.33 1 source · 1 offer

Asking prices are not manufacturing cost and do not establish product equivalence, quality, safety, or legality. The refresh date is the catalog build date; individual source observation dates are not available in this snapshot. View full price methodology →

We tested 10731 Tirzepatide batches across 1651 identified manufacturers

Independent certificate-of-analysis evidence from third-party labs — the data behind the studies. Updated as new COAs are verified. Read the full grey-market analysis →

Within that total, 2113 batches have unresolved manufacturer identity. They remain in corpus-level lab evidence and are excluded from named-manufacturer rankings.

99.72%
Avg purity
10731
Batches tested
1651
Identified manufacturers
12
Failed <90% purity
463
Underdosed >10%

Top 3 vendor evidence profiles for Tirzepatide

Eligible vendors have at least 2 deduplicated tests and 2 classifiable identity observations. Rank uses the 95% lower confidence bound on clean identity results; mean positive purity and test count break ties. Missing measurements are not passes. Exact-zero/not-detected and explicit wrong-compound markers count once per adverse certificate. This describes tested batches, not every product or shipment, and is not an endorsement.

RankManufacturerTestsAvg positive purityIdentity adverse results
#1 240 99.6% 0 of 228 (0.0%) 0 0% / not detected · 0 wrong compound · 12 unclassified Reveal with Pro →
#2 195 99.53% 0 of 183 (0.0%) 0 0% / not detected · 0 wrong compound · 12 unclassified Reveal with Pro →
#3 142 99.81% 1 of 138 (0.7%) 1 0% / not detected · 0 wrong compound · 4 unclassified Reveal with Pro →

Manufacturer identities are included with Pro. Batch counts and lab measurements remain visible.

Recent certificates: #101000 (99.849%) · #101247 (99.34%) · #100700 (99.86%) · #101224 (99.82%) · #101225 (99.87%) · #101309 (99.93%)

Tirzepatide studies and clinical research

Research tools

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Reconstitution calculator Bac water, concentration & insulin-unit math Verify a COA Look up a report number against our corpus