TB-500
TB-500Synthetic fragment of Thymosin Beta-4.
Also known as: Thymosin Beta-4 fragment
Overview
TB-500 is a synthetic version of the active region of Thymosin Beta-4, studied in cell-migration, actin-regulation, and tissue-repair research.
A synthetic fragment spanning the active actin-binding region of Thymosin Beta-4, studied for promoting cell migration, angiogenesis, and tissue repair in recovery models. Its small size and good systemic distribution make it a frequent partner to BPC-157 in repair research.
Studied for upregulating actin, promoting cell migration, angiogenesis, and tissue repair in recovery models.
Molecular information
Leu-Lys-Lys-Thr-Glu-Thr-Gln (core actin-binding motif)TB-500 is the synthetic active region of the 43-residue Thymosin Beta-4 protein.
Pharmacokinetics
Illustrative relative-concentration model derived from published pharmacokinetic research. Curve is normalized and provided for educational comparison only — not a dosing schedule.
Research applications
- Tissue-repair research
- Cell-migration studies
- Angiogenesis investigations
Research protocols
Protocols summarized from published research models. Provided for scientific reference only — not dosing guidance for human use.
Observed effects timeline
Aggregated observations reported across research literature. Timing and magnitude vary by model and are not a guarantee of outcome.
Week 1–2
Early cell-migration and angiogenic responses reported during the loading phase in models.
Week 3–6
Accelerated tissue repair and remodeling reported in preclinical research.
Maintenance
Reduced-frequency dosing studied to sustain repair signaling.
Research compatibility
Describes how compounds are studied alongside one another in the literature. Not a recommendation to co-administer.
BPC-157
Co-studied together as a tissue-repair stack.
Thymosin Beta-4
TB-500 is a fragment of TB-4 — redundant activity.
GHK-Cu
Complementary remodeling pathways.
Ipamorelin
TB-500 may enhance tissue sensitivity to growth hormone effects
CJC-1295 (No DAC)
TB-500 tissue repair combined with GH-releasing effects for comprehensive recovery
IGF-1 LR3
Enhanced muscle and tissue regeneration through complementary growth pathways
Melanotan II
No interaction expected - TB-500 promotes tissue repair via actin regulation, Melanotan Il acts on melanocortin receptors. Completely different receptor families with no pathway overlap.
How to reconstitute
Reconstitute with bacteriostatic water, swirl gently, and refrigerate. Avoid shaking to preserve the peptide.
- 1Allow the vial to reach room temperature (15–20 minutes).
- 2Swab the stopper with alcohol and let it air dry.
- 3Add bacteriostatic water slowly down the vial wall.
- 4Swirl gently until fully dissolved into a clear solution.
- 5Refrigerate at 2–8 °C and protect from light.
Quality indicators
Uniform white powder
Lyophilized cake should be white to off-white without discoloration.
Clear solution
Reconstitutes to a clear, colorless, particle-free solution.
Cold-chain integrity
Reconstituted solution requires 2–8 °C storage.
Slight clumping
Small clumps that dissolve completely with gentle swirling are acceptable — shipping can cause minor compaction.
Collapsed or melted appearance
Powder that looks collapsed, melted, or stuck to the vial walls may have been exposed to heat in transit.
Cloudy after reconstitution
Persistent cloudiness, particles, or precipitate after gentle mixing can indicate a degraded or contaminated peptide.
Reported observations & safety
Safety signals reported in the research literature. Compiled for scientific awareness — not medical advice.
- Generally reported as well tolerated in animal models; human safety data are limited.
- Mild injection-site reactions and transient fatigue are occasionally reported.
References & further reading
Thymosin Beta-4 in tissue repair and regeneration (review)
Review of Thymosin Beta-4 (and its active fragment) roles in cell migration, angiogenesis, and wound repair.
View studyTopics
This entry is provided for educational and informational purposes only. It is not medical advice, a dosing protocol, or a claim of therapeutic benefit. Research compounds are supplied strictly for laboratory and research use — not for human or veterinary consumption.
Substantial peer-reviewed research across multiple models.
TB-500 is stocked as a research-grade compound, ≥99% by HPLC, third-party verified.
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