GABA 750 mg

GABA 750 mg

NOW4.6 (24,960 ratings)
Format:Capsule Quantity: 100 Capsule(s) · 100 servings
Goals
$11.60 $0.11 per serving
Daily VitaLowest$11.60Amazon$11.60Pure Formulas$11.89iHerb$12.24Vitacost$13.09Walmart$13.99

Product analysis

61 out of 100

GABA 750 mg may offer short-term calming support, but reliable everyday stress, mood or sleep benefits remain uncertain.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality20

The specific GABA preparation is not identified. That makes it difficult to compare its quality or relate it to findings for particular preparations.

Ingredient Transparency63

The GABA amount is disclosed, making the serving quantity clear. Its form remains unspecified, limiting comparisons between preparations.

Value For Money100

The serving-cost comparison indicates good affordability. The low cost does not establish reliable relaxation or sleep benefits.

Customer Satisfaction89

Customer ratings are generally very positive across a large review base. The extensive feedback gives a broad picture of satisfaction without proving stress or sleep benefits.

Product Focus64

A single GABA ingredient keeps the formula focused on related calming, mood and sleep goals, but the evidence is limited. Its stated amount does not establish stronger relaxation or a dependable sleep effect.

Format
Capsule
Container
100 Capsule(s)
Per serving
$0.11
Customer rating
4.6 · 24,960 ratings
Report analysis

Goals

Stress Relief
Stress Relief
Impact
Highest effect
A+ Ingredient FitC PathwaysA EvidenceA+ Formulation Logic
GABA · 750 mg
Study evidence
GABA Supportive 6 studies
Sleep Support
Sleep Support
Impact
Moderate effect
A+ Ingredient FitF PathwaysD+ EvidenceA+ Formulation Logic
Study evidence
GABA Supportive 4 studies
Mood Support
Mood Support
Impact
Moderate effect
A+ Ingredient FitF PathwaysD+ EvidenceA+ Formulation Logic
Study evidence
GABA Supportive 12 studies

Ingredients

IngredientAmount per servingScore
GABA
750 mg 85
Gluten Free Adults 18–50 Vegan Kosher Dairy Free Vegetarian
Report overview
GABA · 750 mg OverallScore85
B- Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyA+ Value
The serving provides 750 mg of GABA at a low cost per serving. The production method is unclear. The Other Ingredients panel includes a flow agent, but its identity is not specified here.
How this ingredient is rated

Active Ingredient Quality & Bioavailability70

The GABA source is not further specified.
GABA Source & Production Method
GABA is named, but its production method is not specified.

Dose, Safety & Label Transparency93

The GABA amount is stated. A flow agent is present.
GABA Dosage Adequacy & Transparency
The selected serving states 750 mg of GABA.
Label Purity & Excipient Quality
The Other Ingredients panel includes a flow agent, but its identity is not specified here.

Value100

The serving cost is low.
Price per Effective Dose
The cost per serving is low.
View ingredientView products
74 Performance

Liposomal GABA

Quicksilver Scientific

240 mg GABA with 100 mg L-theanine and phosphatidylcholine broadens the original's single-ingredient approach and may better support relaxation through complementary pathways. The supplied data do not establish how much the liposomal delivery changes absorption, and the serving cost is high.

85 Performance

Pharma GABA 250 mg

Natural Factors Stress-Relax

250 mg fermented branded GABA provides clearer source definition than the original's generic GABA. The branded source improves ingredient definition, although oral GABA effects can vary and drowsiness remains possible.

84 Performance

GABA 500 mg

NOW

500 mg GABA with 2 mg vitamin B6 provides a more conservative amount than the original, which may suit users who are sensitive to drowsiness. Generic sourcing and uncertain oral brain availability limit confidence, and drowsiness remains possible.

84 Budget

GABA

NOW

Lower serving cost and 500 mg GABA make this a more economical option for the same GABA-focused sleep and stress goals. Generic sourcing and uncertain oral brain availability limit confidence, and drowsiness remains possible.

81 Budget

GABA 750 mg

Source Naturals Serene Science

Lower serving cost and 750 mg GABA make this a more economical option for the same GABA-focused sleep and stress goals. Generic sourcing and uncertain oral brain availability limit confidence, while the high amount may increase drowsiness.

83 Budget

GABA 500 mg

Nutricost

Lower serving cost and 500 mg GABA with 2 mg vitamin B6 make this a more economical option for the same GABA-focused sleep and stress goals. Generic sourcing and uncertain oral brain availability limit confidence, and drowsiness remains possible.

83 Value

GABA 500 mg

NOW

Lower serving cost paired with 500 mg GABA with 2 mg vitamin B6 creates a stronger balance of focused calming support and value than the original. Generic sourcing and uncertain oral brain availability limit confidence, and drowsiness remains possible.

83 Value

GABA 500 mg

Swanson

Lower serving cost paired with 500 mg GABA creates a stronger balance of focused calming support and value than the original. Generic sourcing and uncertain oral brain availability limit confidence, and drowsiness remains possible.

81 Value

GABA Powder

Source Naturals Serene Science

Lower serving cost paired with 750 mg GABA creates a stronger balance of focused calming support and value than the original. Generic sourcing and uncertain oral brain availability limit confidence, while the high amount may increase drowsiness.

Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Oral intake of γ-aminobutyric acid affects mood and activities of central nervous system during stressed condition induced by mental tasks.
    Yoto A; Murao S; Motoki M; Yokoyama Y; Horie N; Takeshima K; Masuda K; Kim M; Yokogoshi H · Amino acids · 2012
    Randomized trial63 participantsMood Support Stress Relief forGABA
  2. Peripartum neuroactive steroid and γ-aminobutyric acid profiles in women at-risk for postpartum depression.
    Deligiannidis KM; Kroll-Desrosiers AR; Mo S; Nguyen HP; Svenson A; Jaitly N; Hall JE; Barton BA; Rothschild AJ; Shaffer SA · Psychoneuroendocrinology · 2017
    Cohort study56 participantsMood Support forGABA
  3. The role of neurotransmitters in mediating the relationship between brain alterations and depressive symptoms in patients with inflammatory bowel disease.
    Wang J; Liu G; Xu K; Ai K; Huang W; Zhang J · Human brain mapping · 2023
    Case-control study69 participantsMood Support forGABA
  4. Occipital gamma-aminobutyric acid and glutamate-glutamine alterations in major depressive disorder: An mrs study and meta-analysis.
    Truong V; Cheng PZ; Lee HC; Lane TJ; Hsu TY; Duncan NW · Psychiatry research. Neuroimaging · 2021
    Observational studyMood Support forGABA
  5. Systematic review of gamma-aminobutyric-acid inhibitory deficits across the reproductive life cycle.
    Vigod SN; Strasburg K; Daskalakis ZJ; Blumberger DM · Archives of women's mental health · 2014
    Systematic review11 studies pooledMood Support forGABA
  6. Safety and Efficacy of Gamma-Aminobutyric Acid from Fermented Rice Germ in Patients with Insomnia Symptoms: A Randomized, Double-Blind Trial.
    Byun JI; Shin YY; Chung SE; Shin WC · Journal of clinical neurology (Seoul, Korea) · 2020
    Randomized trial40 participantsSleep Support forGABA
  7. Analysis of the Effects of Known Sleep-Support Supplements in Relation to Life Habits, Sleep Conditions, and Sleep Problems.
    Imafuku F; Yamamoto K; Tanaka E; Aoki R; Nishino S · Nutrients · 2023
    Randomized trial160 participantsSleep Support forGABA
  8. Reduced γ-aminobutyric acid in occipital and anterior cingulate cortices in primary insomnia: a link to major depressive disorder?
    Plante DT; Jensen JE; Schoerning L; Winkelman JW · Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2012
    Case-control study40 participantsSleep Support forGABA
  9. GABA Supplementation, Increased Heart-Rate Variability, Emotional Response, Sleep Efficiency and Reduced Depression in Sedentary Overweight Women Undergoing Physical Exercise: Placebo-Controlled, Randomized Clinical Trial.
    Guimarães AP; Seidel H; Pires LVM; Trindade CO; Baleeiro RDS; Souza PM; Silva FGDE; Coelho DB; Becker LK; Oliveira EC · Journal of dietary supplements · 2024
    Randomized trial30 participantsSleep Support Stress Relief forGABA
  10. Relieving occupational fatigue by consumption of a beverage containing γ-amino butyric acid.
    Kanehira T; Nakamura Y; Nakamura K; Horie K; Horie N; Furugori K; Sauchi Y; Yokogoshi H · Journal of nutritional science and vitaminology · 2011
    Clinical trial30 participantsStress Relief forGABA
  11. Cortical gamma-aminobutyric acid and glutamate in posttraumatic stress disorder and their relationships to self-reported sleep quality.
    Meyerhoff DJ; Mon A; Metzler T; Neylan TC · Sleep · 2014
    Case-control study45 participantsStress Relief forGABA
  12. Comparison of the effects of two amino acids, Gamma-aminobutyric acid (GABA) and L-theanine, on sedation, anxiety, and cognition in preoperative surgical patients - A randomized controlled study.
    Deshpande SS; Kurdi M; Baiju A; Athira AS; Sarasamma AG; Gangadharan AK · Journal of anaesthesiology, clinical pharmacology · 2025
    Randomized trial168 participantsStress Relief forGABA