Free shipping on research orders over $150Every batch third-party tested, 99%+ purity guaranteedOrders processed within 0–2 business days · Discreet packagingFree shipping on research orders over $150Every batch third-party tested, 99%+ purity guaranteedOrders processed within 0–2 business days · Discreet packaging
END OF SUMMER SALE30% off site-wideSUMMER30
Kestra

TRANSPARENCY

Certificates of Analysis

A Certificate of Analysis is the paper trail behind a purity claim. We include one with every product and make it easy to see exactly what was tested and how.

Every certificate we have published

One record per production lot, not one per product. Search by compound, or type the lot number printed on a vial label to pull up that exact batch.

Holding a vial? Scan the QR code on its label to jump straight here.

Demonstration data. The records below are sample values shown to demonstrate this library, not laboratory results. Certificates issued by our testing laboratory replace them lot by lot as production batches are released. Until then, email support with your order or lot number for the certificate covering your vial.

138 certificates

  • 5A10829CURRENT

    5-Amino-1MQ 50 mg

    99.57%

    Purity

    All 8 assays passed

    Tested Aug 26, 2026

  • TB50037CURRENT

    TB-500 5 mg

    99.91%

    Purity

    All 8 assays passed

    Tested Aug 26, 2026

  • SEM1085CURRENT

    Semax 10 mg

    99.65%

    Purity

    All 8 assays passed

    Tested Aug 25, 2026

  • WOL0075CURRENT

    BPC-157 / TB-500 (Wolverine) 10 mg (5+5)

    99.64%

    Purity

    All 8 assays passed

    Tested Aug 24, 2026

  • BPC0159CURRENT

    BPC-157 10 mg

    99.63%

    Purity

    All 8 assays passed

    Tested Aug 23, 2026

  • GSH1131CURRENT

    Glutathione 600 mg

    99.70%

    Purity

    All 8 assays passed

    Tested Aug 23, 2026

  • IGF1301CURRENT

    IGF-1 LR3 1 mg

    99.81%

    Purity

    All 8 assays passed

    Tested Aug 23, 2026

  • MOT0841CURRENT

    MOTS-c 10 mg

    99.59%

    Purity

    All 8 assays passed

    Tested Aug 23, 2026

  • TA11295CURRENT

    Thymosin Alpha-1 10 mg

    99.57%

    Purity

    All 8 assays passed

    Tested Aug 23, 2026

  • GHK0045CURRENT

    GHK-Cu Nasal Spray Pre-mixed spray

    99.91%

    Purity

    All 8 assays passed

    Tested Aug 21, 2026

  • AOD0127CURRENT

    AOD-9604 10 mg

    99.91%

    Purity

    All 8 assays passed

    Tested Aug 20, 2026

  • IPA0175CURRENT

    Ipamorelin 10 mg

    99.59%

    Purity

    All 8 assays passed

    Tested Aug 20, 2026

  • SNA1177CURRENT

    SNAP-8 10 mg

    99.81%

    Purity

    All 8 assays passed

    Tested Aug 20, 2026

  • TB50959CURRENT

    TB-500 10 mg

    99.65%

    Purity

    All 8 assays passed

    Tested Aug 20, 2026

  • BWA0219CURRENT

    Amino H2O 30 mL

    99.78%

    Purity

    All 8 assays passed

    Tested Aug 19, 2026

  • CJC0735CURRENT

    CJC-1295 / Ipamorelin (No DAC) 10 mg blend

    99.72%

    Purity

    All 8 assays passed

    Tested Aug 19, 2026

  • EPI0093CURRENT

    Epithalon 10 mg

    99.89%

    Purity

    All 8 assays passed

    Tested Aug 18, 2026

  • SEM1275CURRENT

    Semax 30 mg

    99.63%

    Purity

    All 8 assays passed

    Tested Aug 18, 2026

  • TA11061CURRENT

    Thymosin Alpha-1 5 mg

    99.69%

    Purity

    All 8 assays passed

    Tested Aug 18, 2026

  • TES0687CURRENT

    Tesamorelin 10 mg

    99.57%

    Purity

    All 8 assays passed

    Tested Aug 18, 2026

  • GHK0929CURRENT

    GHK-Cu 50 mg

    99.75%

    Purity

    All 8 assays passed

    Tested Aug 17, 2026

  • KLO0217CURRENT

    KLOW Standard blend

    99.57%

    Purity

    All 8 assays passed

    Tested Aug 17, 2026

  • MT21189CURRENT

    Melanotan II 10 mg

    99.75%

    Purity

    All 8 assays passed

    Tested Aug 15, 2026

  • SEL0261CURRENT

    Selank Nasal Spray Pre-mixed spray

    99.85%

    Purity

    All 8 assays passed

    Tested Aug 15, 2026

Transparency you can verify

Nothing about our results is meant to be taken on faith: every batch Kestra Club releases ships with its own COA, and the documentation is there to be read.

138

Public certificates

34

Compounds covered

ISO 17025

Accredited testing labs

Our testing methods

HPLC Purity Analysis

A quantified purity figure measured by reverse-phase high-performance liquid chromatography.

Mass Spectrometry

Measured molecular weight compared to the expected value to confirm the correct sequence and structure.

Identity Confirmation

Verification that the tested material is the peptide it claims to be, matched against its reference profile.

Batch Documentation

A unique lot identifier tying the certificate to the exact production run the vial came from.

How to access your COA

1

Check the product page

Open the page for your peptide. Each product lists its current batch information.

2

Open the certificate

View or download the COA for the lot you received. A printed copy is also included inside every shipment.

3

Verify the results

Review the identity confirmation, HPLC purity percentage, molecular weight, and test date for your batch.

COA questions

A COA is a document, produced by an analytical laboratory, that records the results of the tests run on a specific batch of material. Rather than asking you to trust a number on a label, it shows the underlying evidence: what was tested, which methods were used, and what the instruments measured.

The certificate for your batch is available from the product page, printed inside every shipment, and on request from our support team. The paperwork always matches the vial in your hand rather than a generic sample.

Start with the identity confirmation, then the purity percentage from reverse-phase HPLC, and finally the measured molecular weight from mass spectrometry compared against the value expected for the correct sequence.

Analysis is performed by an independent, ISO/IEC 17025-accredited laboratory rather than in-house, so results are verified separately from the facility that made the batch.

Yes. Every batch we release is tested and ships with its own COA. Purity is measured per batch, and the result for the exact lot you receive is recorded on its certificate.

Need a batch-specific COA?

Email our support team with your order or lot number and we’ll send the full certificate for your batch.

Email support

All the research peptides you need, with peace of mind.

Research updates, new-batch COAs and member pricing. Subscribe from the footer, or start browsing the catalog.