# Zinc Thymulin

> Zinc-bound thymulin nonapeptide for hair-follicle and immune-signalling research

All products are sold strictly for laboratory research use only. Not for human or veterinary use.

- Web page: https://peptidemedixeu.com/en/products/zinc-thymulin/
- Brand: Peptide Medix EU
- Category: [Hair Research Peptides](https://peptidemedixeu.com/en/collections/hair-peptides/)
- Purity: ≥99% by HPLC with mass-spectrometric identity check; COA per lot
- from €85 (EUR)

## Sizes and prices (EUR)

| Size | Price | SKU |
| --- | --- | --- |
| 10 mg | €85 | ZINC-THYMULIN-10-MG |

_Catalog prices at build time; the web page and checkout are authoritative._

## Specifications

- **Peptide class:** Thymic nonapeptide hormone analog
- **Form:** White lyophilized powder in a sealed glass vial
- **Purity:** ≥99% by HPLC with mass-spectrometric identity check; COA per lot
- **Solubility:** Sterile or bacteriostatic water; avoid strong chelators that would strip zinc
- **Storage (lyophilized):** −20 °C, sealed, protected from light and moisture
- **Storage (reconstituted):** 2–8 °C, short study window; single-use aliquots preferred
- **Available size:** 10 mg
- **Base peptide:** Thymulin (facteur thymique sérique, FTS) — nonapeptide
- **Base peptide sequence:** pGlu-Ala-Lys-Ser-Gln-Gly-Gly-Ser-Asn
- **Base peptide CAS number:** 63958-90-7 (thymulin)
- **Metal coordination:** Zinc(II) complex — required for the active conformation
- **Research areas:** Hair-follicle anagen models, thymic signalling, T-cell differentiation, zinc–immune interaction
- **Vial contents:** Peptide complex only — no diluent, carrier or preservative

## Description

Zinc thymulin is the biologically meaningful form of thymulin, a nonapeptide first obtained from thymic epithelium and called facteur thymique sérique (FTS) in older papers. Thymulin only folds into its active shape when it holds a zinc ion; the peptide without zinc circulates but is described as inactive until the metal binds. Supplying it already complexed with zinc removes a variable that has muddied much of the historical thymulin research.

The material features in two lines of research. One is immunology: thymulin was characterised for its part in T-lymphocyte differentiation and thymic signalling, and its dependence on zinc made it a frequent example in studies linking zinc status to immune function. The other is dermatology, where zinc thymulin has been tested in hair-follicle models and topical scalp formulations for effects on the growth phase of the follicle.

Peptide Medix EU supplies zinc thymulin as lyophilised powder in a 10 mg vial, tested by an independent lab to ≥99% HPLC purity with a certificate of analysis for each lot, and shipped from our EU warehouse — strictly for laboratory research.

## Frequently asked questions

### What is zinc thymulin?

The thymulin nonapeptide supplied as its zinc complex. Thymulin — once called facteur thymique sérique — is a thymic peptide whose activity in classic assays depends on binding zinc; researchers use the complexed form when they need the conformation described as biologically active.

### Why is the zinc important?

Thymulin with and without bound zinc behaves differently, and early contradictions in the thymulin literature were partly due to uncontrolled zinc levels. Using the complex and avoiding chelating buffers keeps the coordination state defined, so experiments can be compared.

### Is the lot independently tested, and can I view the COA?

Yes. An independent laboratory checks the identity and purity of every production lot by HPLC with mass-spectrometric confirmation, and the certificate — listing lot number, assay result and test date — can be requested before purchase.

### How does it compare with plain thymulin?

The sequence is the same — pGlu-Ala-Lys-Ser-Gln-Gly-Gly-Ser-Asn — the only difference being the bound zinc ion. Comparative studies often include both forms so that any effect can be credited to the zinc-bound conformation.

### What storage does it need?

Store the sealed lyophilised vial at −20 °C, away from light and humidity. After reconstitution, keep it at 2–8 °C in single-use aliquots and use it within a short, defined period; avoid repeated freeze–thaw cycles and buffers containing chelators.

---

All products offered on this website are intended solely for in-vitro laboratory research and development by qualified professionals. They are not drugs, foods, cosmetics or dietary supplements, and are not intended to diagnose, treat, cure or prevent any disease. Products must not be introduced into humans or animals in any manner. By purchasing, you confirm that you are a qualified researcher and accept full responsibility for handling and storage in accordance with applicable laws.

Peptide Medix EU · https://peptidemedixeu.com/en/products/zinc-thymulin/