AOR GABA 600mg - Gamma-Aminobutyric Acid for Relaxation | 60-120 Caps
Visit the AOR Store| Brand | AOR |
| Serving | 600 mg (1 capsule) |
| Licensed Natural Health Product | NPN 80038082 |
| Quality Standards | GMP-compliant facility |
| Country | Made in Canada |
About this item
- SUPPORTS RELAXATION - THE AUTHORIZED USE: AOR GABA's Health Canada license authorizes one clear use: helping to temporarily promote relaxation, from a single 600 mg dose of pure gamma-aminobutyric acid per vegan capsule.
- GABA IS A NATURAL, ENDOGENOUS NEUROTRANSMITTER: GABA (gamma-aminobutyric acid) is the brain's primary inhibitory neurotransmitter, naturally produced by the body to help calm neural activity.
- EXPLORED FOR RESTFUL, UNINTERRUPTED SLEEP: GABA's calming role has made it a widely studied ingredient for winding down in the evening; research on oral GABA and sleep is ongoing, and results vary by study and by individual.
- MAY SUPPORT CALM, EVERYDAY FOCUS: Beyond relaxation, GABA is researched for a possible role in easing tension while supporting a clear, composed mindset during busy days.
- HIGH-POTENCY, SINGLE-INGREDIENT FORMULA: 600 mg of pharmaceutical-grade gamma-aminobutyric acid (over 99% purity) per capsule, with no non-medicinal ingredients besides the vegan capsule shell.
- VEGAN, NON-GMO & GLUTEN-FREE: A clean, allergen-conscious formula - vegan, non-GMO and gluten-free, in an easy-to-swallow vegan capsule.
- FLEXIBLE DAILY DOSING: Take 1 to 5 capsules daily without food, or as directed by a health care practitioner - adjust within the labeled range to fit your own routine.
- TRUSTED CANADIAN MANUFACTURING: Made in Canada by Advanced Orthomolecular Research (AOR), a science-based supplement brand since 1991, licensed under Health Canada NPN 80038082.
Product Description
GABA - The Brain's Natural Calming Neurotransmitter

AOR GABA provides 600 mg of pure gamma-aminobutyric acid per vegan capsule - a naturally occurring inhibitory neurotransmitter your body already makes. Helps to temporarily promote relaxation. A single-ingredient, non-GMO, gluten-free formula made in Canada. Licensed Natural Health Product NPN 80038082.
AOR GABA fournit 600 mg d'acide gamma-aminobutyrique pur par capsule végane - un neurotransmetteur inhibiteur naturellement présent dans l'organisme. Contribue à favoriser temporairement la relaxation. Une formule à ingrédient unique, sans OGM et sans gluten, fabriquée au Canada. Produit de santé naturel homologué. NPN 80038082.
Pure GABA, 600 mg
Single-ingredient, vegan capsules - Non-GMO, Gluten-Free
600 mg Per Capsule
A single, pharmaceutical-grade dose of gamma-aminobutyric acid (over 99% purity) in every vegan capsule - no fillers, no blends.
Flexible Dosing, 1 to 5 Capsules Daily
Take 1 to 5 capsules daily without food, or as directed by a qualified health care practitioner - adjust within the labeled range to suit your own routine.
What AOR GABA Supports
GABA is the brain's main inhibitory neurotransmitter. Here's what the label and the research summarize about its role.
Relaxation
Helps to temporarily promote relaxation - the Health Canada-authorized use on this product's license.
Restful Nights
Explored in research for a calming effect that may support winding down before bed.
Everyday Calm
A steady, single-ingredient way to support a sense of calm during busy, demanding days.
Balance & Well-Being
Part of a routine aimed at maintaining overall balance alongside diet, sleep and stress management.
AOR GABA: Supplement Facts
Each Capsule contains:
- Gamma-aminobutyric acid (GABA)600 mg
Non-Medicinal Ingredients: None. Capsule: hypromellose.
Recommended Use or Purpose: Helps to temporarily promote relaxation.
Recommended Dose (Adults 18 years and older): Take 1 to 5 capsules daily without food, or as directed by a qualified health care practitioner. Do not crush, blend or mix the capsules; swallow the capsule whole. Do not exceed the recommended daily dose unless instructed by a health care practitioner. Recommended Duration of Use: Consult a health care practitioner for use beyond 4 weeks.
Cautions and Warnings: Do not use if you are pregnant or breastfeeding. Consult a health care practitioner before use if you have epilepsy or if symptoms persist or worsen. Avoid taking this product with alcohol. Do not use if the safety seal is broken. Store tightly sealed in a cool, dry place, away from children.
Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings and directions before using or consuming a product. Other Information: GMP manufacturing, independent testing, quality assured. Manufactured by Advanced Orthomolecular Research (AOR), Calgary, Alberta. This item is sold and shipped by Amazon.ca.
Chaque capsule contient :
- Acide gamma-aminobutyrique (GABA)600 mg
Ingrédients non médicinaux : Aucun. Capsule : hypromellose.
Usage ou fins recommandés : Contribue à favoriser temporairement la relaxation.
Dose recommandée (adultes de 18 ans et plus) : Prendre 1 à 5 capsules par jour sans nourriture, ou selon les recommandations d'un professionnel de la santé qualifié. Ne pas écraser, mélanger ou mixer les capsules; avaler la capsule entière. Ne pas dépasser la dose quotidienne recommandée sauf indication contraire d'un professionnel de la santé. Durée d'utilisation recommandée : consulter un professionnel de la santé pour un usage au-delà de 4 semaines.
Mises en garde : Ne pas utiliser ce produit si vous êtes enceinte ou si vous allaitez. Consulter un professionnel de la santé avant utilisation si vous souffrez d'épilepsie ou si les symptômes persistent ou s'aggravent. Éviter de prendre ce produit avec de l'alcool. Ne pas utiliser si le sceau de sécurité est brisé. Conserver hermétiquement fermé dans un endroit frais et sec, hors de la portée des enfants.
NPN 80038082
Add AOR GABA to your daily routine
Get AOR GABA on Amazon.ca - fast, protected delivery.
Get it on Amazon.caWhy AOR GABA
A high-potency, single-ingredient neurotransmitter supplement - premium AOR quality.
Single-ingredient purity
600 mg of pure gamma-aminobutyric acid per capsule, with no non-medicinal ingredients besides the vegan capsule shell.
The authorized relaxation claim
Health Canada licenses this product to help temporarily promote relaxation - a clear, verified use, not a vague wellness claim.
Flexible, vegan capsule dosing
1 to 5 capsules daily without food lets you find the amount that works for your own routine.
Premium Canadian brand
AOR - Advanced Orthomolecular Research, since 1991. NPN 80038082.
How to use it
Take 1 to 5 capsules daily
Adults (18 years and older): take 1 to 5 capsules daily without food, or as directed by a qualified health care practitioner.
Swallow whole
Do not crush, blend or mix the capsules - swallow the capsule whole. Do not exceed the recommended daily dose unless instructed by a health care practitioner.
Guided long-term use
Consult a health care practitioner for use beyond 4 weeks.
What the research says about GABA
Educational summaries of published research on gamma-aminobutyric acid (GABA) - including a real, ongoing scientific debate about how oral GABA acts in the body; these are not product-specific claims. AOR GABA's own claim is the authorized use under NPN 80038082: helping to temporarily promote relaxation.
Alpha waves rose within an hour
In a human study, oral GABA increased alpha-wave and reduced beta-wave EEG activity within about 60 minutes, a pattern consistent with subjective relaxation and lower anxiety.
Human studyA calming signal in a 28-day tea trial
Daily intake of a GABA-fortified oolong tea for 28 days was associated with increases in relaxation-linked alpha brain waves and improved quality-of-life scores in adult participants.
Human RCTA GABA-containing combination eased stress within a day
In a randomized trial of a nutraceutical combining GABA with another botanical extract, women reported measurable improvements in stress response and anxiety as early as day 1 - though the effect cannot be attributed to GABA alone in a combination formula.
Human RCTA GABA/L-theanine mixture shortened time to sleep (animal model)
In an animal model, a combined GABA and L-theanine mixture decreased sleep latency and increased non-REM sleep duration compared with either ingredient alone.
Animal studyGABA-rich fermented milk eased anxiety-like behaviour (animal model)
Mice given GABA-rich fermented milk showed reduced anxiety-like behaviour and longer sleep time than controls, an effect the researchers linked to changes in gut bacteria.
Animal studySleep quality tracked in a 95-day human trial
A 95-day randomized trial of oral GABA (500 mg, three times daily) in adults included self-reported sleep quality among its secondary measures alongside its main focus on glucose metabolism - one example of sleep being actively studied as an outcome of interest for oral GABA.
Human RCTA genuine, unresolved scientific debate
A widely cited review examines whether GABA and other neurotransmitters consumed as food or supplements can meaningfully influence brain activity, given that GABA has only limited ability to cross the blood-brain barrier in its free form - the science here is still evolving, not settled.
ReviewPoor blood-brain-barrier crossing is a recognized property
Pharmaceutical researchers note that GABA's limited blood-brain-barrier permeability is a well-documented pharmacokinetic property, which has directed scientific interest toward the gut-brain axis and the enteric nervous system as possible alternate pathways of action.
MechanismGABA's roles reach beyond simple neuron-to-neuron signaling
GABA is also released by glial cells (as a 'gliotransmitter'), a reminder that its signaling roles in the body are more complex than a single brain-crossing mechanism.
ReviewA human dose-escalation trial found it well tolerated
Adults given oral GABA in a controlled-release formulation at 200 mg, 600 mg and 1200 mg over an 11-day dose-escalation trial experienced no serious adverse events, with only a few mild, transient effects reported.
Human studyNo adverse events over 12 weeks in a 111-person trial
A 12-week randomized trial of a GABA-rich fermented ingredient in 111 adults reported no adverse events, adding to real-world data on the tolerability of regular oral GABA intake.
Human RCTMonitored safely over 95 days at a higher daily dose
A 95-day trial giving adults 500 mg of oral GABA three times daily (1500 mg/day total) monitored safety throughout; the study's primary glucose-control outcome was not significantly different from placebo, an honest reminder that not every studied outcome shows an effect.
Human RCTL-theanine, a related calming amino acid
A randomized trial found an L-theanine-based nutrient drink reduced markers of stress and altered brain activity (measured by magnetoencephalography) compared with placebo.
Human RCTValerian root's evidence for sleep
A systematic review and meta-analysis of valerian root found modest support for improving sleep problems, one of the most-studied traditional calming botanicals.
Systematic reviewAshwagandha's stress-and-anxiety evidence
A randomized trial of a standardized ashwagandha extract reported safety and efficacy for reducing stress and anxiety symptoms, a commonly compared adaptogenic botanical.
Human RCTHow GABA came to be recognized as a neurotransmitter
A neuroscientist's historical account traces GABA's discovery in the brain and the decades of research needed before it was accepted as a true neurotransmitter alongside glutamate.
Historical reviewCrustacean research proved GABA's inhibitory role
Early studies in crustacean nerve-muscle systems played a pivotal role in establishing that GABA functions as a major inhibitory neurotransmitter across the animal kingdom.
Historical reviewA concise history of GABA and glycine
A classic pharmacology review traces GABA's path from an obscure brain chemical, discovered over 50 years ago, to the recognition that it drives roughly 40% of inhibitory signaling in the mammalian brain.
ReviewA 3-gram dose raised growth-hormone markers
In a randomized, double-blind, placebo-controlled crossover trial, resistance-trained men who ingested 3 grams of oral GABA showed elevated growth-hormone concentrations at rest and after exercise compared with placebo.
Human RCTA 100 mg dose blunted stress markers within 30 minutes
A randomized, placebo-controlled crossover trial in 63 adults found that 100 mg of oral GABA reduced the EEG and mood changes normally seen during a mental-arithmetic stress task.
Human RCTThe 600 mg dose produced a clear measured response
Within a human dose-escalation trial, the 600 mg dose of oral GABA - matching this product's per-capsule amount - more than doubled the body's hormonal counter-regulatory response compared with no treatment.
Human studyGABA's role alongside the master stress hormone
A neuroscience review describes how corticotropin-releasing hormone (which triggers the body's stress-response cascade), glutamate and GABA interact to regulate mood and the body's stress circuitry.
ReviewGut-linked neurotransmitters and the stress axis
A 2026 review describes how gut-microbiome activity shapes levels of neurotransmitters, including GABA, and how this network interacts with the hypothalamic-pituitary-adrenal (HPA) stress axis.
ReviewFaster recovery from an acute stressor
Adults who consumed GABA-enriched chocolate before an arithmetic stress task showed quicker heart-rate-variability recovery and a blunted rise in salivary chromogranin A (a marker of acute stress-hormone activity) compared with before eating.
Human studyFrequently asked questions
What is GABA and what does AOR GABA do?
Gamma-aminobutyric acid (GABA) is the brain's main inhibitory neurotransmitter, naturally produced by the body. AOR GABA provides 600 mg of pure, pharmaceutical-grade GABA per capsule; its Health Canada-authorized use is to help temporarily promote relaxation.
How do I take AOR GABA?
Adults 18 years and older: take 1 to 5 capsules daily without food, or as directed by a qualified health care practitioner. Do not crush, blend or mix the capsules - swallow the capsule whole. Consult a health care practitioner for use beyond 4 weeks.
Does oral GABA cross the blood-brain barrier?
This is a genuine, ongoing scientific question. GABA has limited ability to cross the blood-brain barrier in its free form, so researchers are still studying exactly how oral GABA produces its effects - possible pathways under study include the gut-brain axis and the enteric nervous system. AOR GABA's labeled claim (helping to temporarily promote relaxation) reflects its authorized use, not a specific mechanism claim.
What's the difference between the 60- and 120-capsule sizes?
Both contain the exact same 600 mg gamma-aminobutyric acid formula under the same NPN license - the 60-capsule bottle is a 60-day supply and the 120-capsule bottle is a 120-day supply, at one capsule per day (up to 5 capsules daily as directed).
Is it vegan and allergen-friendly?
Yes - vegan, non-GMO and gluten-free, with no non-medicinal ingredients besides the hypromellose vegan capsule shell.
Who should not use it?
Do not use if you are pregnant or breastfeeding. Consult a health care practitioner before use if you have epilepsy, if symptoms persist or worsen, or for use beyond 4 weeks. Avoid taking this product with alcohol.
Is it made in Canada?
Yes. AOR GABA is manufactured in Canada by Advanced Orthomolecular Research (AOR) and licensed by Health Canada as a Natural Health Product under NPN 80038082.
Where do I buy it?
Use the orange button on this page - it takes you to the AOR listing on Amazon.ca for secure checkout and fast delivery.
Add AOR GABA to your daily routine
Get AOR GABA on Amazon.ca - fast, protected delivery.
Get it on Amazon.caNatural Health Product NPN 80038082. Helps to temporarily promote relaxation. The research summaries below concern the ingredient gamma-aminobutyric acid (GABA) generally and are educational - they are not claims about this finished product. Read and follow the label. Do not use if you are pregnant or breastfeeding. Consult a health care practitioner before use if you have epilepsy, if symptoms persist or worsen, or for use beyond 4 weeks. Avoid taking this product with alcohol. Results may vary.
Important information
Safety Information
Cautions and Warnings: Do not use if you are pregnant or breastfeeding. Consult a health care practitioner before use if you have epilepsy or if symptoms persist or worsen. Avoid taking this product with alcohol. Do not use if the safety seal is broken. Store tightly sealed in a cool, dry place, away from children.
Indications
Recommended Use or Purpose: Helps to temporarily promote relaxation.
Ingredients
Medicinal Ingredients: Serving Size: 1 Capsule. Gamma-aminobutyric acid 600 mg. Non-medicinal Ingredients: None. Capsule: hypromellose.
Directions
Recommended Dose (Adults 18 years and older): Take 1 to 5 capsules daily without food, or as directed by a qualified health care practitioner. Do not crush, blend or mix the capsules; swallow the capsule whole. Do not exceed the recommended daily dose unless instructed by a health care practitioner. Recommended Duration of Use: Consult a health care practitioner for use beyond 4 weeks.
Legal Disclaimer
Actual product packaging and materials may contain more and different information than what is shown on our website. We recommend that you do not rely solely on the information presented and that you always read labels, warnings and directions before using or consuming a product. Other Information: GMP manufacturing, independent testing, quality assured. Manufactured by Advanced Orthomolecular Research (AOR), Calgary, Alberta. This item is sold and shipped by Amazon.ca.







