Agmatine
Agmatine is a compound the body forms from the amino acid arginine. It is mainly studied for its role in nerve signaling.
What it is studied for
The strongest rated effects first. Bars show the size of the effect, the letter grades the evidence, and each rating lists the studies behind it.
What is agmatine?
Agmatine is formed from arginine. Researchers study its role in nerve signaling and its possible therapeutic effects; a plausible biological mechanism is not itself evidence that supplementation helps. 1
Why people take it
SuppCo community snapshot, 2026-09-28. Reasons for use are not evidence that it works.
Questions people ask
Is long-term safety settled?
No. The long-term report concerns the authors themselves, not a large controlled cohort. 2
Does a blood-level difference prove treatment benefit?
No. The adolescent study measured existing differences; it did not administer agmatine. 3
Does the long-term report settle pregnancy safety?
No. That self-observation does not establish safety in pregnancy or breastfeeding. 2
Sources
- Pharmacological profile of agmatine: An in-depth overview Neuropeptides, 2024
- Long-term (5 years), high daily dosage of dietary agmatine: evidence of safety, a case report Journal of Medicinal Food, 2014
- Altered Arginine/Agmatine Pathway and Polyamines in Adolescents Diagnosed with Major Depressive Disorder Clinical Psychopharmacology and Neuroscience, 2024