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Thymosin Alpha-1

Is Clean Peptide’s Thymosin Alpha-1 tested for endotoxin?

Short answer

Yes. ILS Laboratories' certificate for Clean Peptide's Thymosin Alpha-1 10 mg lot ACE-9487640, analysed 3 September 2026, reports endotoxin at 0.101 EU/mL by the USP <85> method. The same full QC panel found heavy metals not detected by ICP-MS, no growth on PCR sterility and no fentanyl detected.

Contaminant results on the Thymosin Alpha-1 certificates

SizeLotAnalysedEndotoxin (USP <85>)Heavy metals (ICP-MS)Sterility (PCR)Fentanyl screen
10 mg ACE-9487640 3 September 2026 0.101 EU/mL Not Detected No Growth Not Detected

Read from the live lot pages on 30 October 2026. Endotoxin is a measured value ("Reported"); the other three are pass results on the certificate.

Endotoxin is measured in endotoxin units per millilitre (EU/mL). ILS Laboratories tests it by the USP <85> kinetic chromogenic method and, on its certificates, reports the value without a pass or fail line, because, in its words, acceptable limits vary by product type and matrix.

Every figure here belongs to the lot named in the table and was read in October 2026. A new lot gets its own certificate and its own lot page.

Where to verify

Follow-up questions

What HPLC purity did the same certificate report?

10 mg lot 99.90%, by HPLC.

Who issued the certificate, and under which number?

ILS Laboratories: COA-2026-VZSPIG (10 mg).

All answersSold for laboratory research use only. Not for human or veterinary use.

Every reference standard you need, documented down to the batch.

Each size ships against the certificate issued for its own fill — purity, identity and batch, on file before you buy.

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