Supplement Scholar
Healing & Repair

Thymosin Beta-4

Research compound. This is not a dietary supplement. Unless it is identified as an approved prescription drug, it is not approved by the FDA for human use. This page summarizes published research for education only; we do not sell it or link to sellers.

Thymosin Beta-4. Full-length actin-sequestering peptide central to wound healing and angiogenesis — TB-500 is its derivative.

How it works. Sequesters G-actin to control cytoskeletal dynamics for cell migration; also upregulates VEGF and matrix-remodeling enzymes.

What the research supports. 2 graded claims. Strongest: Broad tissue-repair signaling (preclinical).

Hormonal impact. Effects on VEGF, Inflammatory cytokines, MMP activity.

Side effects and interactions. 0 medication interactions listed. Serious: Long-term human safety not fully characterized.

Stacking. Pairs well with BPC-157. Avoid combining with Active malignancy.

Common forms. Available as Subcutaneous injection, Eye drops (clinical trials).

Community. Experiences from people who have tried Thymosin Beta-4. Anecdotes are not medical advice.

Thymosin Beta-4. Full-length actin-sequestering peptide central to wound healing and angiogenesis — TB-500 is its derivative.

No single structure

What it is

Thymosin Beta-4 is a 43-amino-acid actin-sequestering peptide present throughout the body that supports tissue repair, angiogenesis, and immune modulation.

Also called

TB-4

How it works

Sequesters G-actin to control cytoskeletal dynamics for cell migration; also upregulates VEGF and matrix-remodeling enzymes.

Pathways

  • G-actin sequestration
  • VEGF and angiogenesis
  • MMP-driven matrix remodeling

Effects

  • +Wound healing and angiogenesis supports
  • ↓Excess inflammation decreases
  • +Cell migration during repair supports

What the research supports

Broad tissue-repair signalingpreclinical
Active clinical trials in eye and cardiovascular medicinepreclinical

Strong: consistent results across large trials or meta-analyses. Moderate: several trials, mostly positive. Limited: small or mixed studies. Preclinical: animal or cell research only.

Hormonal impact

↑VEGFincreases
↓Inflammatory cytokinesdecreases
~MMP activitymodulates

Side effects & interactions

Common side effects

  • Injection-site reactions
  • Mild fatigue

Serious

  • Long-term human safety not fully characterized

No notable medication interactions listed.

Check any supplement–medication combination with your pharmacist before starting.

Combines with

Pairs well

  • BPC-157Complementary angiogenesis and migration support.

Avoid combining

  • Active malignancyVEGF upregulation is generally avoided.

Common forms

  • Subcutaneous injection
  • Eye drops (clinical trials)

Discussion

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