TB-500
Also known as: Thymosin Beta-4 fragment · TB4 · TB 500
A synthetic peptide based on a region of thymosin beta-4, a naturally occurring protein involved in cell migration and tissue organization. Most associated with recovery and flexibility.
Class
Regenerative peptide
Default unit
mg
Common route
Subcutaneous or IM
Typical half-life
Long-acting (days)
Frequency
Weekly, often split
Commonly associated areas
Illustrative map of the body systems TB-500 is most often discussed in relation to. Relative emphasis only — not a measure of efficacy or a medical claim.
Proposed mechanisms / pathways
What is TB-500?
TB-500 is a synthetic peptide based on an active region of thymosin beta-4, a protein found throughout the body that plays a role in cell migration, actin regulation, and tissue organization. In community use it is associated with recovery, flexibility, and connective-tissue support, and it is often discussed alongside BPC-157.
How it is thought to work
Thymosin beta-4 helps regulate actin, a building block cells use to move and rebuild tissue. The proposed idea behind TB-500 is that supporting this process aids cell migration to areas under repair, supports new blood-vessel formation, and dampens inflammation. As with most peptides in this space, human evidence is limited and these mechanisms are largely preclinical.
Educational only — not medical advice
TB-500 is a research peptide and is not an approved medication for general human use. Nothing here is a recommendation, dose, or medical claim. Consult a qualified healthcare provider and follow the laws in your area.
Tracking a TB-500 protocol
TB-500 protocols are typically structured in two phases — a higher-dose loading phase followed by a lower maintenance phase. The single most useful thing you can do is record when you transition between them, so every later observation about recovery or mobility can be read against the phase that was actually in effect.
Commonly discussed for
- Whole-body recovery and reduced muscle tightness
- Flexibility and range of motion
- Connective-tissue support
Often stacked: Commonly paired with BPC-157 in a recovery-focused stack.
How to track TB-500 in LynkDose
TB-500 is usually run in a loading phase followed by maintenance — keep those phases clearly separated in your log so you can see which phase produced which result.
Used in these stacks
Deeper read: TB-500: Dosage, Cycle Length, and How to Track It
Frequently asked questions
What is TB-500?
A synthetic peptide based on a region of thymosin beta-4, a naturally occurring protein involved in cell migration and tissue organization. Most associated with recovery and flexibility.
What is TB-500 commonly used for?
TB-500 is most commonly discussed in the context of whole-body recovery and reduced muscle tightness, flexibility and range of motion, and connective-tissue support. This is educational context, not medical advice.
How do you track TB-500?
TB-500 is usually run in a loading phase followed by maintenance — keep those phases clearly separated in your log so you can see which phase produced which result.
Is TB-500 approved or medically recommended?
No. This page is educational only and is not medical advice. Many peptides are research compounds not approved for general human use. Always consult a qualified healthcare provider before making health decisions.
Research & references
For primary research and chemical data, search these databases. Entries here are educational summaries, not citations of specific findings.
Not medical advice
This page is educational and does not recommend, prescribe, or dose any compound. Many peptides are research chemicals not approved for general human use. Always consult a qualified healthcare provider and follow the laws in your area.