What is TB-500 | 5MG & 10MG

TB-500 | 5MG & 10MG is a synthetic version of the naturally occurring peptide Thymosin Beta-4, studied in research for its profound ability to accelerate wound healing, reduce inflammation, and promote rapid tissue regeneration. It is intended exclusively for research use.

Regarding its chemical identity, TB-500 has a molecular formula of C212H350N56O78S and a molecular weight of 4963.4 g/mol. Its reported canonical sequence is Ac-Ser-Asp-Lys-Pro-Asp-Met-Ala-Glu-Ile-Glu-Lys-Phe-Asp-Lys-Ser-Lys-Leu-Lys-Lys-Thr-Glu-Thr-Gln-Glu-Lys-Asn-Pro-Leu-Pro-Ser-Lys-Glu-Thr-Ile-Glu-Gln-Glu-Lys-Gln-Ala-Gly-Glu-Ser. A confirmed CAS number is not available in open primary reference sources and is therefore omitted.

Its synonyms include TB-500.

Product for research use.

Mechanism of action of TB-500

TB-500 acts primarily by upregulating Actin, an essential cellular protein that forms the contractile filaments of muscle cells. By binding to actin, it promotes cell migration (essential for wound healing) and angiogenesis (the formation of new blood vessels).

Pharmacokinetics and pharmacodynamics of TB-500

As a relatively large, highly systemic peptide, TB-500 travels easily through the bloodstream to seek out sites of injury and inflammation. It has a longer biological half-life than BPC-157, typically allowing for less frequent administration in research protocols.

Scientific evidence on TB-500

The available evidence on TB-500 is preliminary and largely inconclusive, and should be interpreted with caution. The literature describes it as having been investigated for multiple indications in preclinical models.

Extensively studied in models of muscle tears, tendon injuries, and myocardial infarction. Evidence shows it significantly accelerates the physical repair of tissues and reduces the formation of fibrous scar tissue.

TB-500 applications in research

Ideal for (research context):
– In vitro and preclinical studies of its specific receptor pathways.
– Investigation of tissue repair, cell proliferation, and functional restoration in laboratory models.
– Comparative work with related peptides.

Not applicable for:
– clinical, diagnostic or therapeutic use.
– Any administration to humans or animals outside of an authorized research protocol.

Product for research use.

TB-500 protocols in preclinical studies

The literature consulted does not include numerical doses from studies that can be cited for TB-500, so no trial schemes or quantities are specified.

The presentations of this product (5MG & 10MG) refer only to the amount of lyophilized peptide per vial (or volume for liquids) and do not constitute a dosage recommendation. The design of any protocol, including concentrations and working volumes, is the responsibility of the researcher, based on their experimental objectives and the relevant primary literature.

Information provided exclusively for research purposes.

Reconstitution and manipulation of TB-500

As a general guideline for laboratory handling, lyophilized peptides such as TB-500 are usually reconstituted with bacteriostatic water (sterile water with approximately 0.9% benzyl alcohol).

Add the solvent slowly down the side of the vial, letting it run over the lyophilized powder; avoid injecting the stream directly onto the powder.
Do not shake: gently rotate the vial until completely dissolved.
Adjust the solvent volume according to the desired working concentration, considering the 5MG & 10MG contents of the vial.

These guidelines are for general technique and do not replace the internal procedures of each laboratory.

TB-500 Stability and Storage

As a standard laboratory handling procedure for peptides:

Freeze-dried (unreconstituted): This is the most stable form. It is best preserved by freezing and protecting it from moisture and light for long-term storage.
Reconstituted: once in solution, the peptide is less stable and must be kept refrigerated, being used within a short period; for extended storage, freezing in aliquots is usually preferred.
Avoid repeated freeze-thaw cycles, as they can degrade the peptide.

Given that the molecule is characterized by rapid enzymatic degradation in biological media, careful cold chain management is especially relevant.

Documented TB-500 security profile

The documented safety information in open sources for TB-500 is limited and should be interpreted with caution, also considering that it is research material and not for clinical use.

Due to its potent angiogenic (blood vessel creating) properties, theoretical concerns exist regarding its use in the presence of active malignancies, as tumors require angiogenesis to grow. Otherwise, it lacks systemic steroidal or hormonal side effects.

Formal contraindications and adverse event rates are not available in the consulted literature, so no figures are reported.

TB-500 in a comparative context

Compared to BPC-157 (which acts heavily on gut healing and immediate local repair), TB-500 is highly systemic and focuses heavily on muscle cell migration and flexibility. The two are often researched together for synergistic healing.

History and development of TB-500

Thymosin Beta-4 was originally isolated from the thymus gland. TB-500 was developed as a synthetic analogue to capture its unique tissue-repair capabilities, becoming one of the most widely used regenerative peptides in veterinary and laboratory research.