Chapter oneStart here
TB-500 care.What is real?
A plain-language guide to TB-500: what it is, what a care offer means, and which questions matter.
The US agency that reviews medicines goes by FDA, short for Food and Drug Administration.
As of September 2026, TB-500 is not an FDA-approved medicine for any use in the US.
The name, unpacked
What is TB-500?
TB-500 is a lab-made peptide: a tiny chain of chemical building blocks, like beads joined on a string.
It copies a small piece of thymosin beta-4, a larger protein found in the body.
TB-500 and the full protein are different substances.
The evidence
Has it been tested in people?
The FDA found no published study that gave TB-500 to people in the review checked in September 2026.
That review found no study in people supporting claims that TB-500 heals muscles, tendons or wounds.
The unknowns
What are the side effects?
As of September 2026, the FDA lacks the data needed to describe TB-500's side effects in people.
Missing data does not mean a product is harmless.
The next conversation
Where does care start?
Make your health concern the starting point for care, rather than a request for a product.
Ask what could explain it, which options fit, and what evidence supports each option.
Chapter notes
- FDA's TB-500 review (PDF)
The substance, missing human studies and questions about harm.
- FDA medicine approval records
The US approval record behind the answer above.
- FDA's ingredient concerns
Why the FDA is concerned about TB-500 and the lack of studies in people.
What happens before a visit?
Read the care questions