Beauty Peptides
GHK-Cu (Copper Tripeptide-1)
A copper-binding tripeptide supplied as a blue powder for cosmetic formulation development.
Specification on request — agreed before sampling and stated on the batch COA.
View Details
Thymosin Beta-4
Research-grade peptide material for qualified research buyers. Laboratory research use only.
At a glance — catalogue identifiers
- 01Catalogue name: see the product title above
- 02CAS / registry number: Confirmed on the batch COA / TDS.
- 03Sequence: Confirmed on the batch COA / TDS.
- 04Molecular formula / weight: Confirmed on the batch COA / TDS.
- 05EINECS / INCI: Confirmed on the batch COA / TDS.
- 06Appearance: Confirmed on the batch COA / TDS.
- 07Specification: Specification on request — agreed before sampling and stated on the batch COA.
- 08Test method: Agreed per order and stated on the batch COA
- 09Solubility: Confirmed on the batch COA / TDS.
- 10Storage: Confirmed on the batch COA / TDS.
- 11Shelf life: Specification on request — agreed before sampling and stated on the batch COA.
- 12Minimum order: Quoted per project
- 13Packaging: Confirmed per order
- 14Documents: COA / MSDS / TDS and analytical reports on request
- 15Intended use: Laboratory research only — see the notice below
Business Use Only
For laboratory research use only. This material is offered to qualified research buyers and is not a finished drug product. Not for human or animal administration. Buyers are responsible for compliance with the rules of their destination country.
Catalogue information is indicative. Binding values and documents are agreed per order and stated on the batch COA.
Product Overview
Specification on request — agreed before sampling and stated on the batch COA.
Laboratory research use only
Our experts reply within one business day — document requests included.
Specifications
What is confirmed before a sample ships
| Item | Standard / Available |
|---|---|
| Product name | Thymosin Beta-4 |
| Application category | Pharmaceutical Peptides |
| Catalogue grade | Specification on request — agreed before sampling and stated on the batch COA. |
| CAS / registry number | Confirmed on the batch COA / TDS. |
| Physical form | Lyophilised powder |
| Appearance | Confirmed on the batch COA / TDS. |
| Solubility | Confirm in the finished matrix before scale-up |
| Purity / specification | Specification on request — agreed before sampling and stated on the batch COA |
| Identity confirmation | Stated on the batch COA; method agreed with the customer |
| Packaging | Sample and bulk packs; sizes confirmed per order |
| Minimum order | Sample and bulk quantities quoted per project |
| Storage | Cool, dry, protected from light and moisture |
| Documentation | Document list agreed per order; available on request |
| Lead time | Quoted per order |
| Intended application | Laboratory research use only |
These are indicative catalogue values. The release limits that bind both parties are the ones on the signed batch COA, together with the agreed analytical method.
COA Structure
Which fields a batch certificate should contain
| Item | Specification | Result | Method |
|---|---|---|---|
| Appearance | Agreed per order | — | Stated on the batch COA |
| Identity (LC-MS / MS) | Agreed per order | — | Stated on the batch COA |
| Assay (HPLC) | Agreed per order | — | Stated on the batch COA |
| Water content | Agreed per order | — | Stated on the batch COA |
| Residual solvents | Agreed per order | — | Stated on the batch COA |
| Heavy metals | Agreed per order | — | Stated on the batch COA |
| Microbial limits | Agreed per order | — | Stated on the batch COA |
Field names only. No result values are published in the catalogue: actual results, limits and methods are those on the signed batch COA agreed for the order.
Why Work With Us
Five things we agree before a sample ships
- Specification agreed firstIdentity, analytical method and limits are agreed before a sample ships, not after goods arrive.
- Documents listed in the quoteThe document pack and release limits are listed in the quotation for your QA team.
- Comparable quotationsWe state the method and the basis of calculation so two offers can be compared field by field.
- Sample before bulkEvaluate a sample against the agreed specification before committing to a commercial quantity.
- One point of contactTechnical questions, documents and quotations are handled by the same team.
Buyer's Checklist
What to verify before you approve a sample
| Check | What to agree | Why it matters |
|---|---|---|
| Identity | LC-MS / MS trace against the theoretical value | Confirm which sequence is in the pack |
| Assay method | HPLC column, gradient, wavelength, integration rules | Make two quotations comparable |
| Water & solvents | Method and limit stated on the batch COA | Know the mass you actually weigh |
| Batch traceability | COA batch number matches the pack label | Pre-clear the shipment at QA release |
| Document list | Listed in the quotation before sampling | Avoid chasing reports at goods receipt |
| In-formula behaviour | Clarity and assay checked in your real base | Catch incompatibility before bulk |
- Sample request
- Specification agreed
- COA reviewed
- Formula test
- Bulk order
The document list and release limits are agreed per order and listed in the quotation before any sample ships.
Research Applications
Intended use
This material is offered to qualified research buyers for laboratory research use only. It is not a finished drug product and is not for human or animal administration.
Research applications
Typical uses include receptor-binding studies, analytical method development, reference standards and R&D intermediates. We do not describe efficacy, dosing or finished-product use.
Which identifiers should a buyer verify first
Confirm the registry number, sequence and molecular weight, then agree the analytical method that produced the reported value. Two quotations are only comparable when both name the same method and the same basis of calculation.
Documentation
The document list is agreed per order. COA, MSDS, TDS and further analytical reports are available on request, and binding release limits are those stated on the signed batch COA.
Is this for human use?
No. Laboratory research only. Enquiries should come from institutions or businesses able to handle research materials in compliance with the rules of their destination country.
Request documentation
Email sales@yaxbio.com with your institution name, research purpose and destination country to request COA, MSDS, TDS and a sample.
Documentation
The document pack your QA team can request
COACertificate of Analysis
Batch purity, identity, water and residual solvent results.
Supplied as standardHPLC / MSAnalytical Reports
Chromatograms and identity traces for the released batch.
Available on requestTDSSpec Sheet
Solubility, recommended use level and handling guidance.
Supplied as standardHeavy MetalsElemental Impurities
Results supplied against the destination market's limits.
Available on requestMicroMicrobiological Report
Available for cosmetic and nutraceutical QA files.
Available on requestMSDSSafety Data Sheet
Handling, storage, transport and certificate copies.
Supplied as standardTell us which reports your destination market requires. We will list them in the quotation instead of leaving them to be chased at goods receipt.
FAQ
Questions buyers ask about this grade
If your question is about a method, a limit or a document, send it with the product name and our technical team will answer it directly.
Is this for human use?
No. This material is for laboratory research use only and is not for human or animal administration. It is not a finished drug product. Enquiries should come from institutions or businesses able to handle research materials in compliance with their destination country.
Can I evaluate a sample before ordering?
Yes. Send the grade, quantity and destination, and we will arrange a sample with its batch COA.
What does the document pack include?
The document list is agreed per order; COA / MSDS / TDS and further reports are available on request.
Can the specification match our internal limits?
Send your limits with the enquiry. We confirm whether the grade can meet them before a sample is dispatched, rather than after goods arrive.
How quickly will I receive a reply?
Our experts reply within one business day. For urgent requests, WhatsApp is the fastest route.
Which details should I send with an enquiry?
The grade, target application, intended dosage form, quantity, destination market and the documents your QA team needs.
Can I compare this grade with a competing quotation?
Send the competing specification with its analytical method. We will answer field by field, including which documents are included.
Technical Reading
Guides that answer the questions behind this grade
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Specification on request — agreed before sampling and stated on the batch COA.
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Specification on request — agreed before sampling and stated on the batch COA.
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Supplier
Request the current documentation for this grade
YAX BIO supplies peptide ingredients to formulation developers, ingredient distributors and qualified research buyers. Send the grade, quantity, destination market and the documents your QA team needs, and we will reply with a quotation and the available documentation.
For laboratory research use only. This material is offered to qualified research buyers and is not a finished drug product. Not for human or animal administration. Buyers are responsible for compliance with the rules of their destination country.
Ready to evaluate a sample?
Send us your target specification, volume and destination — we'll reply with COA, lead time and a quotation.