What is L-Carnosine?
The short answer
L-Carnosine is a peptide, a short chain of amino acids.
What it is
L-Carnosine: Dipeptide (beta-alanyl-histidine).
Muscle dipeptide that buffers acid.
What people look into
Muscle and exercise
- 3 sources
- Status as of
- How we source
- Ellum doesn't sell peptides.
Get updates on L-Carnosine
What it is
- Also known as
- carnosine
- How it works
- Muscle dipeptide that buffers acid.
Regulatory status
Not FDA-approved How we label status
As of October 4, 2026, L-Carnosine is not FDA-approved for any use and is not on FDA's 503A bulks list.
- Federal (FDA)
- Not FDA-approved (as a drug)
- 503A compounding
- Category 3; 503B Category 3; not on 216.23 as of 2026-10-07 (as of October 7, 2026)
Timeline
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Timeline table
| Date | What happened | Source |
|---|---|---|
| FDA list of bulk drug substances nominated under section 503A, updated May 14, 2026, places L-carnosine in category 3, nominated without adequate support. | FDA, event of May 14, 2026, on fda.gov |
References
Sources as of October 4, 2026