High-Purity Research Peptides

Volume pricing available for qualified researchers - 3+ vials

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High-Purity Research Peptides

Documented Batch by Batch

Janera Science supplies high-purity research peptides characterized by HPLC and mass spectrometry, with a batch-specific certificate of analysis available for every compound. Each peptide is supplied as a lyophilized powder, 4x tested with results recorded per batch, for laboratory research use only.

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Close-up of three vials with blue liquid, representing analytical research and quality testing.

High-Purity Research Peptides

Documented Batch by Batch

Browse the Catalogue

View FAQ

High-Purity Research Peptides

Documented Batch by Batch

Browse the Catalogue

View FAQ

cGMP Manufactured

Produced in certified facilities with controlled processes at every stage.

cGMP Manufactured

Produced in certified facilities with controlled processes at every stage.

cGMP Manufactured

Produced in certified facilities with controlled processes at every stage.

Third-Party Tested

Every batch independently verified through accredited U.S. laboratories.

Third-Party Tested

Every batch independently verified through accredited U.S. laboratories.

Third-Party Tested

Every batch independently verified through accredited U.S. laboratories.

4x Tested Peptides

Purity via HPLC, endotoxin via LAL, heavy metals via ICP-MS, sterility Via USP testing.

4x Tested Peptides

Purity via HPLC, endotoxin via LAL, heavy metals via ICP-MS, sterility Via USP testing.

4x Tested Peptides

Purity via HPLC, endotoxin via LAL, heavy metals via ICP-MS, sterility Via USP testing.

Batch-Specific COAs

Analytical documentation for every lot - traceable and downloadable.

Batch-Specific COAs

Analytical documentation for every lot - traceable and downloadable.

Batch-Specific COAs

Analytical documentation for every lot - traceable and downloadable.

Documentation, Not Marketing Figures

Why Janera leads with the data.

Janera Science is built around testing transparency and documentation. Every research peptide is characterized by HPLC and mass spectrometry before release, because each method reveals what the other cannot: HPLC measures how much, mass spectrometry confirms what.

For researchers, purity is not a marketing figure but the difference between reproducible data and experimental noise. A purity percentage on its own can mislead, since HPLC purity is not the same as net peptide content, so Janera presents the figure alongside the method and the batch documentation.

The aim is to remove uncertainty, so purity, identity, method, and lot can be evaluated together before a compound enters your work.

Single Janera Science BPC-157 10mg research peptide vial with white stopper and chrome crimp cap, floating against a soft light gray gradient background. For laboratory research use only.

Macro photograph of a glass test tube containing vivid blue liquid with bubbles, resting on a reflective surface surrounded by laboratory glassware, representing in-vitro research and purity analysis.

How The Purity of Research Peptides is Verified

Two methods, plus the documentation that records them.

HPLC purity analysis

HPLC reports the purity percentage by separating the target peptide from synthesis by-products.

Mass spectrometry identity confirmation

Mass spectrometry confirms molecular identity by measuring molecular weight.

Batch-specific certificate of analysis

A batch-specific certificate of analysis records both, tied to the lot you receive. Certificates are on the lab results page.

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What Every Order of High-Purity Peptides Includes

The documentation that ships with each compound.

Batch-specific certificate of analysis

Every order includes a certificate of analysis tied to the production lot, with HPLC purity and mass spectrometry identity data.

Lyophilized for stability

Compounds are supplied as lyophilized powder, the most stable form for storage and transit. Researchers reconstitute lyophilized peptides per their own experimental protocol.

Full chemical documentation

Each product lists molecular formula, molecular weight, CAS number, and sequence, so the material can be matched to laboratory records.

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Five Janera Science research peptide vials — two TB-500 5mg and three BPC-157 10mg — arranged on a mirrored stainless steel tray against a silver ridged laboratory background. For research use only.

Who High-Purity Research Peptides Are For

The researchers and teams Janera supplies:

Academic and institutional laboratories that keep analytical records for every compound used.

Independent researchers who evaluate a supplier on verifiable purity and documentation, not price alone.

Procurement and quality teams matching product, lot, and certificate of analysis for traceability.

Who High-Purity Research Peptides Are For

The researchers and teams Janera supplies:

Academic and institutional laboratories that keep analytical records for every compound used.

Independent researchers who evaluate a supplier on verifiable purity and documentation, not price alone.

Procurement and quality teams matching product, lot, and certificate of analysis for traceability.

Our Products

View All Products

TB-500

GHK-Cu

BPC-157

Frequently Asked Questions

Frequently asked questions about our high-purity research peptides. Feel free to contact us if you have any additional questions

What makes a research peptide high purity?

A high-purity research peptide is one verified to a high purity percentage by HPLC, with its identity confirmed by mass spectrometry. Janera reports purity per batch rather than as a fixed marketing claim.

What makes a research peptide high purity?

What does 4x tested mean for research peptides?

4x tested means each batch is verified through four separate analyses before release, confirming identity and purity and screening for contaminants. The results are recorded in the batch certificate of analysis.

What does 4x tested mean for research peptides?

Are these high-purity peptides third-party tested?

Analytical testing is documented in the certificate of analysis for each batch, recording identity, purity, and the methods used.

Are these high-purity peptides third-party tested?

Analytical testing is documented in the certificate of analysis for each batch, recording identity, purity, and the methods used.

Are these high-purity peptides third-party tested?

Analytical testing is documented in the certificate of analysis for each batch, recording identity, purity, and the methods used.

How are high-purity lyophilized peptides stored?

Lyophilized research peptides are kept frozen and protected from light for stability. General storage guidance is provided with each product, and researchers handle reconstitution per their own experimental protocol.

How are high-purity lyophilized peptides stored?

Three Janera Science research peptide vials — GHK-Cu 50mg standing upright at center rear, BPC-157 10mg to the right, and TB-500 5mg lying flat in the foreground — arranged on a light gray surface against a pale blue-gray background.

Trust What You Source

The Janera Transparency Standard ensures every batch is fully documented and verifiable. Get early access to new batches, verified COAs, and limited availability releases.

Trust What You Source

The Janera Transparency Standard ensures every batch is fully documented and verifiable. Get early access to new batches, verified COAs, and limited availability releases.

Trust What You Source

The Janera Transparency Standard ensures every batch is fully documented and verifiable. Get early access to new batches, verified COAs, and limited availability releases.

Work With a Supplier Built on Verification

If you have questions about our compounds, analytical standards, or documentation framework, our team is available to assist.

We aim to respond within one business day.