What is Thymopentin (TP-5)?

The short answer

Thymopentin is a peptide, a short chain of amino acids.

What it is
Thymopentin (TP-5): Pentapeptide, thymopoietin 32-36.
Active five-amino-acid fragment of the thymus hormone thymopoietin.
What people look into
Aging

3 sources
Status as of October 4, 2026
How we source
Ellum doesn't sell peptides.

By Ellum EditorialUpdated October 7, 2026AI use

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Peptides: Thymopentin (TP-5) (1 selected) · edit

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What it is

Also known as: timunox
How it works: Active five-amino-acid fragment of the thymus hormone thymopoietin.

Regulatory status

Not FDA-approved How we label status

As of October 4, 2026, Thymopentin (TP-5) is not FDA-approved for any use and is not on FDA's 503A bulks list.

See Thymopentin (TP-5) in the Index →

Federal (FDA): Not FDA-approved (no drugsfda/DailyMed record)
503A compounding: No category; not on 216.23 as of 2026-10-07 (as of October 7, 2026)
WADA 2026: Not named; S0 (non-approved substances) applies if no health authority approves it for human use

References

Sources as of October 4, 2026