Back to Peptides

Thymosin Beta-4

Healing & Regeneration

Thymosin Beta-4 is an endogenous peptide critical for cellular repair and cytoskeletal regulation. It plays a key role in tissue regeneration, inflammation control, and angiogenesis. Distinct from synthetic TB-500 fragments, full-length TB4 is being studied for cardiac recovery, neurological healing, and advanced wound care.

Reconstitute
3 mL BAC + 5mg vial
17 mcg/unit
Daily Range
1–4 mg Subcutaneous (SQ)
1–2x weekly
Standard Dose
2 mg
Cycle
4–8 weeks
then reassess
Thymosin Beta-4angiogenesiscytoskeletal repairtissue regenerationcardiac healing

Dosing & Reconstitution Guide

In animal studies, Tβ4 has been administered at 0.5–2.0 mg per dose via subcutaneous or intraperitoneal injection depending on model and study duration. No human dosing guidelines are approved or validated.

Standard / Gradual Approach

standard
PhaseDoseVolume
Week 11mg
Week 22mg
Week 33mg
Week 45mg

Protocol Summary

Subcutaneous (SQ): 1–2x weekly · Dose range 14 mg with gradual titration
Cycle Length: 4–8 weeks typical; reassess before extending

Frequency & Cycling

SubQ Injection

Loading phase: 2–4 mg SubQ twice weekly for 2–4 weeks. Maintenance phase: 2 mg weekly as needed. Cycles repeated based on injury severity or recovery goals.

🧪 Quick Start

BAC Water
3 mL

Potential Benefits & Use Cases

Thymosin Beta-4 is a research-use-only peptide. It is not approved for human or veterinary use. All information presented is based on preclinical studies and is intended for educational purposes only.
Studied for accelerating wound closure and dermal regeneration in rodents
Investigated for promoting angiogenesis and new blood vessel formation
Explored for cardiac tissue repair following injury in animal models
Evaluated for neuroprotective and anti-inflammatory roles in CNS trauma studies
Supports cell migration and extracellular matrix remodeling in preclinical data
Clinical data Strong preclinical Limited data

Mechanism of Action

Binds to G-actin, promoting cell migration and cytoskeletal remodeling
Activates integrin-linked kinase (ILK) for tissue repair signaling
Increases VEGF expression to stimulate angiogenesis
Downregulates pro-inflammatory cytokines and chemokines in damaged tissue

Lifestyle & Optimization

timing

Inject SubQ. Loading phase then maintenance.

diet

High protein intake (1.2g per pound body weight). Avoid smoking to support healing.

exercise

Allow adequate recovery between intense workouts (1 rest day per week minimum).

sleep

Sleep 8+ hours nightly for tissue repair optimization.

Peptide Research & Preclinical Studies

Side Effects & Safety

Common Side Effects

Injection site redness
Mild fatigue

Contraindications & Warnings

Not recommended in individuals with active malignancies due to its angiogenic effects

Long-Term Safety Data

No adverse long-term effects reported in animal models; human data limited

🧮 Dose Calculator

Concentration
16.7
mcg/unit
Draw Volume
30
units (0.300 mL)
For a 500 mcg dose, draw 30 units on a U-100 insulin syringe
🧬

Bioavailability & Absorption

SubQ Injection
High tissue penetration and systemic distribution via subcutaneous injection
Oral Administration
Not suitable due to complete degradation in GI tract
Half-Life
2–3 hours
Degradation
Cleared by renal excretion and protease metabolism
Tissue Specificity
Tissues undergoing damage, inflammation, or requiring regenerative cues: heart, skin, brain, cornea, tendons
⚗️

Peptide Details

Molecular Weight
4963.49
Formula
C212H350N56O78S
Sequence
Ac-Ser-Asp-Lys-Pro-Thr-Phe-Ser-Pro-Lys-Glu-Lys-Lys-Cys-Asp-Glu-Leu-Ser-Lys-Leu-Tyr-Glu-Asp-Gly-Asp-Tyr-Phe-Ser-Asp-Cys-Phe-Leu-Cys-His-Val
⚖️

Legal Status & Regulatory

RegionStatus
FDANot Approved
EUNot Approved
AustraliaNot Approved
CanadaNot Approved

Storage Instructions

Lyophilized (Powder)
Store lyophilized powder at 2-8°C
Reconstituted (Mixed)
After reconstitution, maintain at 2-8°C and use within 28 days. Thymosin Beta-4 is relatively stable compared to other peptides.