Am7.0

Agmatine

amino acid

Agmatine Sulfate

Arginine metabolite that modulates NMDA receptors and nitric oxide — supports mood, pain management, and neuroprotection.

mentalperformancenootropicneuromodulatorpainmood

40+ studies

Evidence

Reviewed 19 days ago

moderate

Safety

500-2500mg daily

Dose

4-12 weeks

Time to Effect

Agmatine Sulfate

Best Form

Agmatine is a metabolite of the amino acid arginine, produced by removing the carboxylic acid group. It functions as a neurotransmitter and neuromodulator with diverse effects including NMDA receptor antagonism, imidazoline receptor agonism, and nitric oxide synthase modulation. It has shown promise for mood support, neuroprotection, pain management, and may help regulate tolerance to stimulants and opioids.

Mechanisms of Action

🧠

NMDA Antagonism

Blocks NMDA receptors

❤️

Imidazoline Receptor Agonist

Activates imidazoline receptors

💨

Nitric Oxide Modulation

Regulates NO synthase

Biological PathwayBeta

How Agmatine works — from molecular targets to health outcomes. Click an edge to see supporting research.This visualization is in beta — pathways are being refined and expanded.

Recommended Dose

500-2500mg daily

250mg3000mg

Loading: Not required

Optimal Timing

Empty stomach for mood/nootropic effects
Pre-workout for pumps
Before bed for neuroprotection

Can be taken without food

Available Forms

Form	Type
💊Agmatine Sulfate	Recommended

Agmatine sulfate is the standard supplemental form. Available as powder or capsules.

Duration

Minimum: 4 weeks

Optimal: 12 weeks

Cycling: 4-6 weeks on, 1-2 weeks off; or as needed for workout support

Note: Better absorbed on empty stomach. For workout purposes, take 30-60 minutes before training.

😊

Mood Support

Antidepressant-like effects

⏱️ 2-4 weeks

60% of users notice thispositive

🩹

Pain Relief

May reduce neuropathic pain

⏱️ 1-2 weeks

55% of users notice thispositive

🔄

Tolerance Prevention

May prevent tolerance to certain substances

📅 Ongoing

50% of users notice thispositive

💪

Enhanced Pumps

Improved vascularity during exercise

📅 Acute

55% of users notice thispositive

ModerateMax safe dose: 3g/day commonly used

🟡

Those with depression

Promising adjunct; consult with doctor before use

Who Should NOT Take This

Known allergy or hypersensitivity to Agmatine or related compounds

Drug Interactions

Blood pressure medicationsmoderate

May enhance hypotensive effects

Diabetes medicationsmild

May affect insulin sensitivity; monitor glucose

Possible Side Effects

GI discomfort

milduncommon

Tip: Take with food if needed

Low blood pressure

mildrare

Tip: Start with lower dose

Warnings

Limited long-term human safety data
May interact with blood pressure and diabetes medications
Not well-studied in pregnancy

⟡ L-Citrulline

complementary

Both affect nitric oxide pathways

Enhanced vasodilation and muscle pumps

Top studies from 40+ peer-reviewed papers

📊rctn=150

DOI

Watanabe S et al. • Science advances (2025)

“Lubiprostone is a previously unknown and safe therapeutic option to mitigate renal decline in CKD.”

Key Findings:

Lubiprostone did not alter uremic toxin levels but improved or preserved estimated glomerular filtration rate and its slope in the 16-microgram group.
Mild-to-moderate gastrointestinal events occurred in the placebo and 16-microgram groups.
Multiomics analysis revealed that lubiprostone modulated the gut microbial agmatine pathway and increased spermidine levels, thereby improving renal mitochondrial function.
Lubiprostone is a previously unknown and safe therapeutic option to mitigate renal decline in CKD.

📚systematic-review

DOI

Manole OM et al. • Medical sciences (Basel, Switzerland) (2025)

“The effects exerted by AG depend on the dose and route of administration, as well as on the receptors involved and the pathophysiological pathway used.”

Key Findings:

The effects exerted by AG depend on the dose and route of administration, as well as on the receptors involved and the pathophysiological pathway used.
Further research warranted to confirm findings

📚systematic-review

DOI

Kouba BR et al. • Cells (2024)

“Further studies are necessary to explore the therapeutic benefits of these alternative therapies for MDD.”

Key Findings:

Together, neuroinflammation and gut dysbiosis induce alterations in tryptophan metabolism, culminating in decreased serotonin synthesis, impairments in neuroplasticity-related mechanisms, and glutamate-mediated excitotoxicity.
This review aims to highlight the inflammatory mechanisms (neuroinflammation, peripheral inflammation, and gut dysbiosis) involved in the pathophysiology of MDD and to explore novel anti-inflammatory therapeutic approaches for this psychiatric disturbance.
Several lines of evidence have indicated that in addition to antidepressants, physical exercise, probiotics, and nutraceuticals (agmatine, ascorbic acid, and vitamin D) possess anti-inflammatory effects that may contribute to their antidepressant properties.
Further studies are necessary to explore the therapeutic benefits of these alternative therapies for MDD.

📚meta-analysisn=2830

DOI

Paley EL • Journal of Alzheimer's disease : JAD (2019)

“ADAS is attributable to potentially modifiable risk factors of AD associated diseases.”

Key Findings:

Biogenic amines (histamine, tryptamine, tyramine, phenylethylamine, cadaverine, putrescine, agmatine, spermidine) that present in food and are produced by gut microbiota are significantly higher in C&A (e.g., histamine/histidine 95-fold) versus NNI (histamine/histidine 16-fold).
The seizure-eliciting tryptamine induced cytoplasmic vacuolization and vesiculation with cell fragmentation.
Present additions of ADAS-carriers at different ages including infants led to an ADAS-comprising human sample size of 2,830 from 27 studies from four continents (North America, Australia, Asia, Europe).
Levels of food-derived monoamine oxidase inhibitors and anti-bacterial compounds, the potential modulators of ADAS-bacteria growth and biogenic amine production, were altered in C&A versus NNI.

📚systematic-review

DOI

Moretti M et al. • Frontiers in bioscience (Elite edition) (2014)

“Moreover, some molecular mechanisms underlying the neuroprotective effects of agmatine will be discussed.”

Key Findings:

Agmatine, a cationic polyamine synthesized after decarboxylation of L-arginine by the enzyme arginine decarboxylase, is an endogenous neuromodulator that emerges as a potential agent to manage diverse central nervous system (CNS) disorders.
The aim of this review is to summarize the knowledge about the effects of agmatine in CNS and point out its potential as new pharmacological treatment for diverse neurological and neurodegenerative diseases.
Moreover, some molecular mechanisms underlying the neuroprotective effects of agmatine will be discussed.

View all 40+ studies

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Am7.0

Agmatine

amino acid

Agmatine Sulfate

Arginine metabolite that modulates NMDA receptors and nitric oxide — supports mood, pain management, and neuroprotection.

mentalperformancenootropicneuromodulatorpainmood

40+ studies

Evidence

Reviewed 19 days ago

moderate

Safety

500-2500mg daily

Dose

4-12 weeks

Time to Effect

Agmatine Sulfate

Best Form

Mechanisms of Action

🧠

NMDA Antagonism

Blocks NMDA receptors

❤️

Imidazoline Receptor Agonist

Activates imidazoline receptors

💨

Nitric Oxide Modulation

Regulates NO synthase

Biological PathwayBeta

How Agmatine works — from molecular targets to health outcomes. Click an edge to see supporting research.This visualization is in beta — pathways are being refined and expanded.

Supplement

Molecular Target

Biological Process

Health Outcome

Strong

Moderate

Emerging

strong

moderate

emerging

Tap node to isolate • Pinch to zoom • Tap edge for research

Recommended Dose

500-2500mg daily

250mg3000mg

Loading: Not required

Optimal Timing

Empty stomach for mood/nootropic effects
Pre-workout for pumps
Before bed for neuroprotection

Can be taken without food

Available Forms

Form	Type
💊Agmatine Sulfate	Recommended

Agmatine sulfate is the standard supplemental form. Available as powder or capsules.

Duration

Minimum: 4 weeks

Optimal: 12 weeks

Cycling: 4-6 weeks on, 1-2 weeks off; or as needed for workout support

Note: Better absorbed on empty stomach. For workout purposes, take 30-60 minutes before training.

😊

Mood Support

Antidepressant-like effects

⏱️ 2-4 weeks

60% of users notice thispositive

🩹

Pain Relief

May reduce neuropathic pain

⏱️ 1-2 weeks

55% of users notice thispositive

🔄

Tolerance Prevention

May prevent tolerance to certain substances

📅 Ongoing

50% of users notice thispositive

💪

Enhanced Pumps

Improved vascularity during exercise

📅 Acute

55% of users notice thispositive

ModerateMax safe dose: 3g/day commonly used

🟡

Those with depression

Promising adjunct; consult with doctor before use

Who Should NOT Take This

Known allergy or hypersensitivity to Agmatine or related compounds

Drug Interactions

Blood pressure medicationsmoderate

May enhance hypotensive effects

Diabetes medicationsmild

May affect insulin sensitivity; monitor glucose

Possible Side Effects

GI discomfort

milduncommon

Tip: Take with food if needed

Low blood pressure

mildrare

Tip: Start with lower dose

Warnings

Limited long-term human safety data
May interact with blood pressure and diabetes medications
Not well-studied in pregnancy

⟡ L-Citrulline

complementary

Both affect nitric oxide pathways

Enhanced vasodilation and muscle pumps

Top studies from 40+ peer-reviewed papers

📊rctn=150

DOI

Watanabe S et al. • Science advances (2025)

“Lubiprostone is a previously unknown and safe therapeutic option to mitigate renal decline in CKD.”

Key Findings:

Lubiprostone did not alter uremic toxin levels but improved or preserved estimated glomerular filtration rate and its slope in the 16-microgram group.
Mild-to-moderate gastrointestinal events occurred in the placebo and 16-microgram groups.
Multiomics analysis revealed that lubiprostone modulated the gut microbial agmatine pathway and increased spermidine levels, thereby improving renal mitochondrial function.
Lubiprostone is a previously unknown and safe therapeutic option to mitigate renal decline in CKD.

📚systematic-review

DOI

Manole OM et al. • Medical sciences (Basel, Switzerland) (2025)

“The effects exerted by AG depend on the dose and route of administration, as well as on the receptors involved and the pathophysiological pathway used.”

Key Findings:

The effects exerted by AG depend on the dose and route of administration, as well as on the receptors involved and the pathophysiological pathway used.
Further research warranted to confirm findings

📚systematic-review

DOI

Kouba BR et al. • Cells (2024)

“Further studies are necessary to explore the therapeutic benefits of these alternative therapies for MDD.”

Key Findings:

Together, neuroinflammation and gut dysbiosis induce alterations in tryptophan metabolism, culminating in decreased serotonin synthesis, impairments in neuroplasticity-related mechanisms, and glutamate-mediated excitotoxicity.
This review aims to highlight the inflammatory mechanisms (neuroinflammation, peripheral inflammation, and gut dysbiosis) involved in the pathophysiology of MDD and to explore novel anti-inflammatory therapeutic approaches for this psychiatric disturbance.
Several lines of evidence have indicated that in addition to antidepressants, physical exercise, probiotics, and nutraceuticals (agmatine, ascorbic acid, and vitamin D) possess anti-inflammatory effects that may contribute to their antidepressant properties.
Further studies are necessary to explore the therapeutic benefits of these alternative therapies for MDD.

📚meta-analysisn=2830

DOI

Paley EL • Journal of Alzheimer's disease : JAD (2019)

“ADAS is attributable to potentially modifiable risk factors of AD associated diseases.”

Key Findings:

Biogenic amines (histamine, tryptamine, tyramine, phenylethylamine, cadaverine, putrescine, agmatine, spermidine) that present in food and are produced by gut microbiota are significantly higher in C&A (e.g., histamine/histidine 95-fold) versus NNI (histamine/histidine 16-fold).
The seizure-eliciting tryptamine induced cytoplasmic vacuolization and vesiculation with cell fragmentation.
Present additions of ADAS-carriers at different ages including infants led to an ADAS-comprising human sample size of 2,830 from 27 studies from four continents (North America, Australia, Asia, Europe).
Levels of food-derived monoamine oxidase inhibitors and anti-bacterial compounds, the potential modulators of ADAS-bacteria growth and biogenic amine production, were altered in C&A versus NNI.

📚systematic-review

DOI

Moretti M et al. • Frontiers in bioscience (Elite edition) (2014)

“Moreover, some molecular mechanisms underlying the neuroprotective effects of agmatine will be discussed.”

Key Findings:

Agmatine, a cationic polyamine synthesized after decarboxylation of L-arginine by the enzyme arginine decarboxylase, is an endogenous neuromodulator that emerges as a potential agent to manage diverse central nervous system (CNS) disorders.
The aim of this review is to summarize the knowledge about the effects of agmatine in CNS and point out its potential as new pharmacological treatment for diverse neurological and neurodegenerative diseases.
Moreover, some molecular mechanisms underlying the neuroprotective effects of agmatine will be discussed.

View all 40+ studies

What would you like to do next?

Compare with Others Find Based on Your Goals

Related Supplements

Lth9.0

L-Theanine

9/10

Tea-derived amino acid that boosts alpha brain waves for calm, focused alertness — synergizes with caffeine to reduce jitteriness.

Ct9.5

Creatine

9.5/10

Increases phosphocreatine stores for faster ATP regeneration, boosting strength, power output, and cognitive function under stress.

Alc9.0

Acetyl-L-Carnitine

9/10

Acetylated carnitine that crosses the blood-brain barrier to fuel mitochondrial energy and donate acetyl groups for acetylcholine synthesis.

Htp8.5

5-HTP

8.5/10

Direct serotonin precursor that may support mood, sleep, and appetite control, but requires caution with certain medications.