What to expect.
- Upregulates actin to support systemic cell migration and tissue repair
- May improve flexibility and range of motion
- Supports whole-body recovery from injury, not only the injury site
- Carries anti-inflammatory signaling effects alongside its repair mechanism

Dr. Taylor's take
“TB-500 is what I reach for when a patient's recovery need is systemic rather than confined to one spot: circulating through the bloodstream to support cell migration and repair wherever it's needed. For patients with a specific injury site, I'll often discuss pairing it with BPC-157 for more localized support.”
Dr. Patrick Taylor, MD · Live Vital physician
About TB-500.
Also known as: Thymosin Beta-4, TB4
TB-500 is a synthetic version of thymosin beta-4, a protein naturally produced by the thymus gland. Unlike peptides that concentrate their effects at one location, TB-500 travels through the bloodstream, which is why Dr. Taylor often prescribes it when a patient's recovery needs extend beyond a single injury site.
TB-500 is not FDA-approved and is prescribed off-label as a compounded medication, after a complete medical intake and your informed consent, for patients who want to discuss whether a systemic repair peptide fits their recovery goals.
How it works
TB-500 upregulates actin, the protein responsible for cell structure and movement, which allows it to circulate through the bloodstream and support cell migration and tissue remodeling wherever repair is needed. It also carries anti-inflammatory signaling effects that complement its systemic reach.
Who it may help.
- Athletes recovering from tendon, ligament, or muscle injuries
- Individuals with slow-healing wounds or post-surgical recovery needs
- People with chronic musculoskeletal injuries that haven't responded to conventional treatment
- Those looking for systemic (not just localized) recovery support
What to expect, when.
Many patients report early anti-inflammatory effects within 1-2 weeks, with the fuller benefit of a complete protocol often building over 8-12 weeks. Timelines and outcomes vary by individual, and Dr. Taylor will monitor your progress and adjust your protocol as needed.
Dosing is not one-size-fits-all. Dr. Taylor personalizes your dose and schedule after your medical intake, and adjusts it as your protocol progresses.
Safety information.
Possible side effects
- Nausea (rare)
- Dizziness or lightheadedness (rare)
- Injection site irritation or redness
- Temporary fatigue
Who should talk to us first
- Active cancer or history of malignancy
- Pregnancy or breastfeeding
- Children and adolescents
- Concurrent use of anticoagulant medications without medical supervision
This information is educational and is not a substitute for medical advice. Every protocol requires a medical intake and physician approval, and outcomes vary by individual.
Standard with every plan.
Doctor-prescribed
Prescribed through Live Vital’s licensed clinical team.
Licensed US pharmacy
Prepared by a licensed US pharmacy and shipped to you.
Unlimited messaging
Reach our care team directly with questions at any time.