2 studies on Thymalin curated from PubMed, ClinicalTrials.gov, and EuropePMC. Updated daily.
Bottom line: TitrateLab indexes 56 published Thymalin COA source records from third-party laboratories, covering 32 publicly attributable vendor identities. Across 45 records with positive numeric purity, the arithmetic mean is 98.96%. 0 records report zero purity; these remain in the record count and are excluded from the positive-purity mean. 1 positive purity results are below 90%; 4 records report measured amount more than 10% below the label. The latest recorded test date is 2026-07-31. TitrateLab did not perform these laboratory tests. Source records are not unique batches, and vendor identity does not establish manufacturing role, product safety or overall quality.
As of 2026-09-24, 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 | $7.00 | $6.50–$8.00 | $1.40 | 3 sources · 3 offers |
| 10 mg | $10.00 | $9.00–$10.50 | $1.00 | 3 sources · 3 offers |
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 →
All published source records, including absent and zero purity. Matching uses a case-insensitive exact peptide token. No deduplication in the headline; vendor rankings deduplicate eligible certificates separately. The COA archive can use normalized compound names and a different measurement or duplicate policy; totals from these populations need not match.
Latest recorded test: 2026-07-31. Aggregate calculated: 2026-09-24T17:55:00.048432+00:00. Calculation time is not a laboratory observation date.
Within that total, 9 source records have unresolved vendor identity. They remain in corpus-level lab evidence and are excluded from named-vendor rankings.
Eligible vendors have at least 2 deduplicated certificates and 2 classifiable identity observations. Rank uses the 95% lower confidence bound on clean identity results; mean positive purity and certificate count break ties. Missing measurements are not passes. Exact-zero/not-detected and explicit wrong-compound markers count once per adverse certificate. This describes submitted-sample evidence, not every product or shipment, and is not an endorsement.
| Rank | Vendor | Deduplicated certificates | Avg positive purity | Identity adverse results | |
|---|---|---|---|---|---|
| #1 | 3 | 99.55% | 0 of 3 (0.0%) 0 0% / not detected · 0 wrong compound | Reveal with Pro → | |
| #2 | 5 | 99.42% | 0 of 3 (0.0%) 0 0% / not detected · 0 wrong compound · 2 unclassified | Reveal with Pro → | |
| #3 | 4 | 99.25% | 0 of 3 (0.0%) 0 0% / not detected · 0 wrong compound · 1 unclassified | Reveal with Pro → |
Vendor identities are included with Pro. Record counts and lab measurements remain visible.
Recent source records: #74764 (99.394%) · #91700 (99.285%) · #93539 · #48419 (99.26%) · #80451 (99.352%) · #85444 (73.33%)
This review highlights the critical role of pineal gland peptides in potentially combating age-related immune decline by preserving thymus function. The finding that epithalamin and epitalon are particularly effective…
This review significantly advances our understanding of the neuroimmunomodulatory axis and its role in aging, particularly highlighting the potent geroprotective potential of pineal peptides. The finding that pineal p…
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