Hermetica Superfood Encyclopedia
The Short Answer
Agmatine is a biogenic amine derived from the decarboxylation of L-arginine, produced endogenously in the brain, gut, and liver. It acts as a neuromodulator by binding to imidazoline receptors, alpha-2 adrenoceptors, and NMDA glutamate receptors, influencing nitric oxide synthesis and polyamine metabolism.
CategoryNamed Bioactive Compounds
GroupCompound
Evidence LevelModerate
Primary Keywordagmatine supplement benefits
Synergy Pairings3
Agmatine — botanical close-up
Health Benefits
Origin & History
Natural habitat
Agmatine is a polyamine compound synthesized from the amino acid L-arginine through decarboxylation by the enzyme arginine decarboxylase (ADC). It is produced endogenously in mammalian tissues, including mitochondria and liver, and can also be synthesized by bacterial organisms such as Pseudomonas aeruginosa.
“The research dossier does not contain information on agmatine's historical use in traditional medicine systems. No traditional or cultural applications are documented in the provided sources.”Traditional Medicine
Scientific Research
The provided research dossier contains no human clinical trials, randomized controlled trials, or meta-analyses examining agmatine's therapeutic efficacy. The available sources focus exclusively on analytical methodology for measuring agmatine using isotope dilution mass spectrometry (UPLC-MS/MS and GC-MS), without any PMIDs for clinical studies.
Preparation & Dosage
Traditional preparation
No clinically studied dosage ranges are provided in the research dossier. The sources do not contain information on standardized extract concentrations or dosing protocols for different formulations. Consult a healthcare provider before starting any new supplement.
Nutritional Profile
Agmatine (4-aminobutyl guanidine) is a biogenic amine and decarboxylated derivative of L-arginine (molecular weight: 130.19 g/mol), not a conventional macronutrient or micronutrient. It contains no caloric value, fat, carbohydrate, or fiber content. As a pure compound, it is not a source of vitamins or minerals. Bioactive concentration context: endogenous mammalian tissue levels are in the low micromolar range (estimated 1–10 µM in brain tissue); dietary sources include fermented foods, fish sauce, and wine at concentrations of approximately 1–100 mg/kg depending on fermentation degree. Supplemental doses studied in preclinical models range from 10–100 mg/kg body weight; human supplementation products typically deliver 500–2000 mg per dose as agmatine sulfate salt form. Bioavailability: oral bioavailability is considered moderate; agmatine crosses the blood-brain barrier via cationic amino acid transporters (CAT family). It is metabolized via two primary pathways — hydrolysis by agmatinase to putrescine and urea, and oxidative deamination by diamine oxidase (DAO). Polyamine pathway contribution: serves as a biosynthetic precursor to putrescine, linking it indirectly to spermidine and spermine pools. No protein, vitamin, or mineral content applicable as it is a single purified bioactive compound.
How It Works
Mechanism of Action
Agmatine is synthesized from L-arginine via arginine decarboxylase and inhibits all three isoforms of nitric oxide synthase (nNOS, eNOS, iNOS), thereby regulating nitric oxide production at a cellular level. It binds to imidazoline I1 and I2 receptors, alpha-2 adrenergic receptors, and functions as an NMDA receptor antagonist, dampening excitatory glutamatergic signaling. Additionally, agmatine inhibits ornithine decarboxylase, a rate-limiting enzyme in polyamine biosynthesis, positioning it as a precursor and regulator within the polyamine pathway involving putrescine, spermidine, and spermine.
Clinical Evidence
Clinical research on agmatine in humans remains sparse, with most mechanistic data derived from in vitro cell studies and rodent models rather than randomized controlled trials. One small pilot study examined oral agmatine sulfate (1–3 g/day) in patients with lumbar disc-associated radiculopathy, reporting subjective improvements in pain scores over several weeks, though the sample size was insufficient for definitive conclusions. Preclinical evidence suggests antidepressant-like and neuroprotective effects via NMDA antagonism and BDNF pathway modulation, but no large-scale human trials have replicated these findings. The overall evidence base is currently insufficient to make confirmed health claims, and agmatine should be regarded as a promising but preliminary research compound.
Safety & Interactions
Agmatine sulfate at doses of 1–3 g/day has been used in short-term human studies without serious adverse events reported, though gastrointestinal discomfort such as nausea and diarrhea may occur at higher doses. Because agmatine inhibits nitric oxide synthase and interacts with alpha-2 adrenergic receptors, co-administration with antihypertensive medications, nitrate drugs, or PDE5 inhibitors like sildenafil may produce additive blood pressure effects and warrants caution. Agmatine's NMDA antagonist activity creates a theoretical interaction risk with anesthetic agents, ketamine, and other glutamate-modulating drugs. Safety data during pregnancy and lactation is absent, and use is not recommended in these populations or in individuals with kidney disease, given agmatine's role in nitrogen metabolism.
Synergy Stack
Hermetica Formulation Heuristic
Also Known As
1-amino-4-guanidinobutane4-guanidinobutylaminedecarboxylated arginineAGMguanidinobutylamineN-carbamoylputrescine precursor
Frequently Asked Questions
What is agmatine sulfate used for?
Agmatine sulfate is most commonly supplemented for potential pain relief, neuroprotection, and enhancement of nitric oxide regulation in the context of athletic performance. It inhibits nitric oxide synthase isoforms and acts as an NMDA receptor antagonist, making it a candidate for managing neuropathic pain and supporting cognitive function. However, robust human clinical trial data is limited, so its uses remain largely investigational.
How much agmatine should I take per day?
The doses used in available human research range from approximately 1 g to 3.56 g of agmatine sulfate per day, typically divided into multiple doses taken with meals to reduce gastrointestinal side effects. No official recommended dietary allowance or clinically established therapeutic dose exists as of current literature. Most supplement products provide 500 mg to 1 g per serving, and exceeding studied doses without medical supervision is not advisable.
Does agmatine boost nitric oxide levels?
Agmatine has a nuanced relationship with nitric oxide: it inhibits all three nitric oxide synthase isoforms (nNOS, eNOS, iNOS), which can actually reduce nitric oxide production rather than boost it. Paradoxically, some researchers propose that selective inhibition of iNOS (the inflammatory isoform) while modulating eNOS may produce context-dependent vascular effects. This makes agmatine mechanistically distinct from direct nitric oxide precursors like L-citrulline or L-arginine.
Is agmatine the same as L-arginine?
Agmatine is not the same as L-arginine but is directly derived from it through enzymatic decarboxylation by arginine decarboxylase, removing a carboxyl group from L-arginine's structure. While L-arginine is a primary substrate for nitric oxide synthase and protein synthesis, agmatine functions as a distinct signaling molecule with its own receptor targets including imidazoline and NMDA receptors. Their physiological effects and pharmacological profiles differ substantially despite the structural relationship.
Can agmatine help with depression or anxiety?
Preclinical rodent studies have demonstrated antidepressant-like behavior with agmatine administration, attributed to NMDA receptor antagonism and potentiation of monoaminergic signaling, mechanisms similar in concept to ketamine's rapid antidepressant effects. Agmatine has also been shown in animal models to enhance BDNF (brain-derived neurotrophic factor) expression in the hippocampus, a pathway implicated in antidepressant response. No adequately powered human clinical trials have confirmed antidepressant or anxiolytic efficacy, so these effects remain hypothetical in human populations.
What does clinical research actually show about agmatine's effectiveness?
Current research on agmatine is limited, with most available studies focusing on analytical and biochemical methods rather than human clinical trials demonstrating health outcomes. While agmatine is recognized as a neuromodulator in mammalian physiology, evidence supporting specific therapeutic claims remains preliminary and lacks the robust clinical data available for more established supplements. Any health benefits attributed to agmatine should be viewed as theoretical until larger-scale human studies are conducted and published.
Is agmatine safe to take with medications I'm already using?
Given that agmatine functions as a neuromodulator affecting cellular signaling pathways, there is potential for interactions with medications affecting the nervous system, though specific drug interaction data is limited. Anyone taking prescription medications—particularly those for depression, anxiety, blood pressure, or neurological conditions—should consult a healthcare provider before adding agmatine supplementation. The lack of extensive clinical safety data makes it especially important to disclose agmatine use to your doctor or pharmacist.
Can I get agmatine from food sources, or do I need to supplement?
Agmatine is produced endogenously in the body through the decarboxylation of L-arginine and is found in small amounts in fermented foods and some meat products, though dietary intake is generally minimal. Most people seeking agmatine supplementation cannot obtain therapeutic levels from food alone, making supplementation the primary way to achieve doses discussed in research. The bioavailability and absorption efficiency of agmatine from food versus supplement form has not been extensively compared in clinical studies.
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