Thymalin is a bioregulators research compound currently in stock directly from a verified Chinese manufacturer. Every batch is HPLC-verified and shipped with a Certificate of Analysis (COA). Sourcing is direct — no intermediaries. Minimum order value is $600 USD. International shipping available.
Thymalin is a polypeptide bioregulator derived from the thymus gland, representing a thymus extract standardized for its immunomodulatory peptide content. As part of the peptide bioregulator research program developed in Russian immunogerontology, thymalin is positioned as a thymus-derived preparation that exerts trophic and regulatory effects on thymic function and T lymphocyte differentiation — processes that decline significantly with age-related thymic involution. The active components include short peptides in the range of 1-6 kDa that have been studied for interactions with T lymphocyte precursors and thymic epithelial cells.
Research in aged animal models has examined thymalin's effects on thymus morphology, T lymphocyte subset composition (CD4⁺/CD8⁺ ratio), NK cell activity, and cytokine production profiles. Studies have assessed whether thymalin administration in aged rodents can partially restore thymic structure, increase circulating naive T cell populations, and improve immune response to antigenic challenge — functional endpoints consistent with thymic rejuvenation research. Mechanistically, the bioregulator approach proposes that short thymic peptides restore gene expression patterns in thymic stromal and precursor cells that decline with age-related epigenetic changes.
PeptidesFromChina.co supplies Thymalin as a lyophilized powder at 99%+ purity specifications for its peptide fraction content, verified by HPLC. Certificate of Analysis accompanies every batch. All products are for laboratory research use only and are not for human consumption.
| Chemical Class | Polypeptide bioregulator (thymus-derived peptide fraction) |
|---|---|
| Synonyms | Thymus polypeptide bioregulator, thymus extract peptide fraction |
| Active Components | Short thymic peptides 1-6 kDa including thymopentin-related sequences |
| Research Areas | Immunosenescence, thymic involution, T lymphocyte biology, NK cell function, aging immunology |
| Form | Lyophilized powder |
| Storage | −20°C long-term; 2-8°C aqueous (use within 24 hours after reconstitution) |
| CAS Number | N/A — complex mixture |
| Molecular Weight | N/A — complex mixture |
| Molecular Formula | N/A — complex mixture |
| Sequence | N/A — complex mixture |
| Name | Strength | Pack Size | Purity | Availability | Price (USD) |
|---|---|---|---|---|---|
| Thymalin | 10 mg | 10 vials | ≥98% | In Stock | $79.00 |
Testing method: HPLC / LC-MS. Every batch is tested before shipment. Purity ≥99% confirmed per batch.
Certificate of Analysis (COA) is included with every order. Documentation covers purity, molecular weight, and batch identification.
Thymic involution — the age-related replacement of thymic cortex with adipose tissue — is a primary driver of immunosenescence (age-related immune decline). Research has used thymalin to examine whether thymic peptide supplementation can partially reverse morphological changes in aged thymus, quantified by histological assessment of cortex/medulla ratios, thymic epithelial cell density, and Hassall's corpuscle distribution.
Studies in aged rodents have assessed thymalin's effects on peripheral T lymphocyte populations — specifically the ratio of naive (CD44lo CD62Lhi) to memory (CD44hi) T cells, which shifts with aging as thymic output declines. Research has measured whether thymalin increases peripheral naive T cell frequency, improves CD4⁺/CD8⁺ ratios, and enhances T cell proliferative responses to mitogenic or antigenic stimulation.
Beyond T lymphocytes, thymalin has been studied for effects on NK (natural killer) cell cytotoxic activity and macrophage functional capacity in aged animal models. These innate immune endpoints complement adaptive immunity assessments, providing a broader picture of whether thymus-derived peptide supplementation affects both thymic-dependent and thymic-independent immune compartments in aging research.
Thymosin alpha-1 is a single, well-defined 28-amino acid peptide derived from prothymosin alpha, with a characterized sequence and receptor interactions. Thymalin is a polypeptide fraction from thymus extract containing multiple short peptide components without a single defined sequence. Thymosin alpha-1 is more suitable for receptor-specific mechanistic research; thymalin is used in broader bioregulator and immunosenescence research contexts.
Thymic rejuvenation is an active field examining whether pharmacological intervention can restore age-related thymic involution and improve adaptive immune function. Thymalin provides a historical reference compound from the peptide bioregulator tradition, allowing comparison with newer thymic rejuvenation strategies (IL-7, GH, FOXN1 upregulation, ketosis-mediated thymic restoration) in aged animal models.
Thymalin is supplied to 99%+ purity specifications for its active peptide fraction content, verified by HPLC. Certificate of Analysis from the manufacturing facility is included with every batch.
Lyophilized thymalin should be stored at −20°C. Reconstituted solutions should be kept at 2-8°C and used within 24 hours. The polypeptide mixture is more susceptible to degradation than single-sequence peptides.
For laboratory research use only. Not for human or veterinary use. PeptidesFromChina.co is a B2B wholesale supplier operating under strict research-use-only terms. All products are sold exclusively for in vitro and preclinical research purposes.