Retatrutide Purity: 15763 Lab Tests Across 2530 Identified Manufacturers

151 studies on Retatrutide curated from PubMed, ClinicalTrials.gov, and EuropePMC. Updated daily.

Bottom line: TitrateLab currently tracks 15,763 published third-party lab tests of Retatrutide across 2,530 identified manufacturers. Among reports with a positive numeric purity result, the average is 99.67%. Within this published corpus, 31 positive purity results were below 90%, and 715 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.

Retatrutide 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 $9.33 $8.50–$10.00 $1.87 3 sources · 3 offers
10 mg $14.22 $10.50–$26.00 $1.42 9 sources · 9 offers
15 mg $16.62 $14.50–$19.50 $1.11 4 sources · 4 offers
20 mg $23.57 $17.00–$39.00 $1.18 7 sources · 7 offers
30 mg $30.00 $21.00–$48.50 $1.00 8 sources · 8 offers
40 mg $35.07 $23.50–$58.50 $0.88 7 sources · 7 offers
50 mg $38.83 $33.00–$42.50 $0.78 6 sources · 6 offers
60 mg $42.70 $36.50–$47.00 $0.71 5 sources · 5 offers
100 mg $104.00 $104.00–$104.00 $1.04 1 source · 1 offer
120 mg $54.50 $54.50–$54.50 $0.45 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 15763 Retatrutide batches across 2530 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, 3300 batches have unresolved manufacturer identity. They remain in corpus-level lab evidence and are excluded from named-manufacturer rankings.

99.67%
Avg purity
15763
Batches tested
2530
Identified manufacturers
31
Failed <90% purity
715
Underdosed >10%

Top 3 vendor evidence profiles for Retatrutide

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
#1 156 99.68% 0 of 136 (0.0%) 0 0% / not detected · 0 wrong compound · 20 unclassified Reveal with Pro →
#2 124 99.63% 0 of 123 (0.0%) 0 0% / not detected · 0 wrong compound · 1 unclassified Reveal with Pro →
#3 129 99.4% 0 of 116 (0.0%) 0 0% / not detected · 0 wrong compound · 13 unclassified Reveal with Pro →

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

Recent certificates: #100871 (99.95%) · #100987 (99.84%) · #101090 (99.68%) · #101177 (99.85%) · #101178 (99.84%) · #101248 (99.79%)

Retatrutide 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