Thymosin Beta-4: How It Works, What It's Studied For & Safety
Thymosin Beta-4 is a 43-amino-acid actin-binding protein studied widely for tissue-repair, anti-inflammatory, and angiogenic signaling. Clinicians consider it for soft-tissue, tendon, and ligament repair research. It is not FDA-approved as a finished drug product and is dispensed by Wells Pharmacy Network only after a licensed clinician evaluates intake, history, and labs.
Also known as: TB-500, Tβ4
How does Thymosin Beta-4 work?
Thymosin Beta-4 is the primary actin-sequestering molecule in mammalian cells. It is studied for upregulation of angiogenesis, recruitment of stem and progenitor cells to sites of injury, and modulation of inflammation in cardiac, corneal, and dermal repair models.
What is Thymosin Beta-4 studied for?
- Soft-tissue, tendon, and ligament repair research
- Corneal and ocular-surface healing (RegeneRx clinical program)
- Pairing with BPC-157 in clinician-directed recovery protocols
How is Thymosin Beta-4 taken?
Compounded as a subcutaneous injection in clinician-directed cycles. The closely related TB-500 marker preparation is used in research.
Is Thymosin Beta-4 FDA-approved? Is it safe?
Not FDA-approved for the prevention, treatment, or cure of any condition. Used inside research-informed, clinician-directed protocols only. Listed alongside BPC-157 on the FDA's 503A bulks evaluation; eligibility for any current preparation is determined by your clinician. Compounded prescription-only preparations are dispensed by Wells Pharmacy Network. Eligibility is decided by a licensed clinician based on intake and labs, not by checkout. Compounded products on this site are not FDA-approved and are not generic equivalents of any branded medication.
In the Regen Therapy catalog
The protocols below are dispensed by Wells Pharmacy Network and contain Thymosin Beta-4. Each one is prescribed only after a clinician evaluation.
What does the research say about Thymosin Beta-4?
Substantial preclinical literature; Phase-2 ophthalmic trials of related Tβ4 preparations have been conducted.
Citations & further reading
Considering Thymosin Beta-4 as part of a protocol?
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