479 third-party lab reports published Volume pricing on every peptide, applied automatically in the cart: 3% off 2–3 · 8% off 4–5 · 12% off 6–7 · 15% off 8–9 · 20% off 10–19 · 25% off 20–29 · 30% off 30–39 · 35% off 40+ units · solvents and lab supplies excluded 99.65% median purity across 272 lots 257 / 257 lots pass sterility

‹ Certificates Thymosin Alpha 1 + Thymulin Lot 1668

Lab report (Certificate of Analysis, COA)

Thymosin Alpha 1 + Thymulin · 10mg + 10mg (20mg Total)

Batch 1668 · tested January 14, 2026 (294 days ago) · released May 25, 2026

All tests passed

Batch
#1668 9 tests
Mass
10mg + 10mg (20mg Total)
Purity
99.70%
Issuing lab accreditation
Vanguard · ISO 17025:2017 / A2LA #6377.01.01

1 unit tested for purity: 99.70% as printed

Conformity: Not assessable — every reported unit passed on all 7 test rows · QA approval corroborates: Vanguard Laboratory, Tori Johnson, Operations Manager, 2026-01-14

Vanguard · issuing labEagle Analytical · sterility

Verified by Vanguard Laboratory

This certificate is also hosted by Vanguard Laboratory — the issuing lab — on its own verification site.

View on VerifiedByVanguard.com
Laboratory ID V251230-12 001

Reports for this lot

  1. Vanguard Laboratory this report · tested January 14, 2026 · 7 results · QA approvalVanguard · issuing labEagle Analytical · sterilityAll tests passed

Test by test

7 results on the report · 4 rows computed from the per-unit values · 2 labs · each test used up to 1 vial from this lot (rows are not added together) · every row names the chapter or house rule it follows

✓PurityWithin limits
99.70% · 1 unit · USP <621> (procedural chapter)
–Purity consistency between unitsSingle measurement
1 unit measured (99.70%) · a between-unit spread needs two or more measured units
✓Net peptide content (assay) · TA-1Within limits
10.72 mg · 1 unit · USP <621> (procedural chapter)
✓Net peptide content (assay) · ThymulinWithin limits
10.04 mg · 1 unit · USP <621> (procedural chapter)
–Content consistency between units · TA-1Single measurement
1 unit printed (10.72 mg) · a between-unit spread needs two or more measured units
–Content consistency between units · ThymulinSingle measurement
1 unit printed (10.04 mg) · a between-unit spread needs two or more measured units
✓Heavy metalsWithin limits
all non-detect · 1 unit · dose-scaled limits derived from USP <232> (limits chapter)
–Residual solventsNot on this lot's panel
not on this report · this batch was tested to our earlier standard; newer batches get all 15 tests
–TFA residualNot on this lot's panel
not on this report · this batch was tested to our earlier standard; newer batches get all 15 tests
✓EndotoxinsPass
1 of 1 pass · 1 unit · USP <85> (procedural chapter) · limit <5.00 EU/mg (the lab's)
–Container closureNot on this lot's panel
not on this report · this batch was tested to our earlier standard; newer batches get all 15 tests
–SolubilityNot on this lot's panel
not on this report · this batch was tested to our earlier standard; newer batches get all 15 tests
✓SterilityPass
1 of 1 pass · 1 unit · USP <71> (procedural chapter)
✓SterilityPass
1 of 1 pass · 1 unit · USP <71> (reference) · a rapid viability test used as an alternative to the USP <71> growth test; USP <1223> is the validation framework (informational chapter) · at Eagle Analytical
–ConformityNot assessable
every reported unit passed on all 7 test rows · QA approval corroborates: Vanguard Laboratory, Tori Johnson, Operations Manager, 2026-01-14 · house check · agreement across all tests, unit to unit; QA approval corroborates

A chapter number names the method or limit a result follows; it does not describe the product. Chapters below 1000 are procedures or limits; 1000-series chapters are informational. USP <905> is the compendial test for between-unit uniformity: it assays 10 units, so a 3-unit certificate cannot yield its acceptance value — the content row is a house check with <905> named as the reference only.

Combined report · Batch 1668

One file holding the Vanguard Laboratory and Eagle Analytical Services reports for this batch, assembled by our quality team from the labs' files.

3 pages · Vanguard report V251230-12 001

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Tested by Vanguard Laboratory · Eagle Analytical Services Inc. · Released May 25, 2026

Permanent URL: https://peptidology.co/coa/thymosin-alpha-1-thymulin-lot-1668/

For research use only. Not intended for diagnostic or therapeutic use.

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