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GABA

Pure Encapsulations
4.7
★ ★ ★ ★ ★
(39 ratings)
GABA 700 mg
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Score72
The clearly disclosed 700 mg serving is focused and practical, though ordinary oral GABA has inconsistent real-world effects.
How scoring works
Quantity:120 Capsule(s) • (120 servings)
Goals:
Sleep Support
Stress Relief

Score 72

The clearly disclosed 700 mg serving is focused and practical, though ordinary oral GABA has inconsistent real-world effects.
How scoring works
$38.50($0.32 per serving)
Pure Formulas
$ 38.50
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Analysis

700 mg sits within a practical standalone range for a product aimed at relaxation, stress, or sleep support. Oral GABA targets an inhibitory pathway, but its ability to reach the brain reliably remains uncertain.

Capsule delivery is simple and provides a fixed serving. The single-active design is easy to assess and avoids unrelated ingredients.

The serving cost is higher than many standard GABA products. The formula is better suited to situational calming than to broad mood support or circadian sleep timing.

Who is it for
  • Adults seeking a simple calming supplement
  • Users who prefer capsule delivery
Best for
  • Situational relaxation support
  • A focused single-pathway formula

Pros

  • Clearly disclosed 700 mg amount
  • Focused active-ingredient list
  • One-hundred-twenty-serving supply

Cons

  • Ordinary oral GABA has uncertain brain delivery
  • No branded fermented source
  • Does not address circadian timing

Warnings

  • GABA may cause drowsiness; do not drive or operate machinery until its effects are known.
  • Alcohol, sleep medicines, sedating antihistamines, and other sedatives may intensify impaired alertness.
  • GABA may lower blood pressure in some users; monitor for dizziness when using blood-pressure medicine.

Nutrient quality

78 High impact

Conventional oral delivery does not overcome the main uncertainty about how much ordinary GABA reaches the brain. upper-range falls within a practical standalone range.

Ingredient transparency

81 Highest impact

The GABA amount is clearly disclosed. Excipients and daily directions are absent from the supplied data, which leaves some label details uncertain.

Customer satisfaction

63 Moderate impact

The aggregate satisfaction average is strong, though no detailed feedback is supplied. The limited volume supports only moderate confidence in the aggregate satisfaction signal.

Value for money

62 Moderate impact

A clear, practical amount supports good formula value despite generic sourcing. The serving cost is high for standard unbranded GABA.

Report analysis

Goals

Sleep Support
Sleep Support
Impact
High effect
C- Goal FitB Strength of SupportC- CoverageA Formula Quality

A clearly disclosed 700 mg GABA dose offers focused nervous-system relaxation support. The amount sits near the upper end of the preferred range for this ingredient.

Oral GABA has less consistent sleep evidence than melatonin or magnesium, and the formula covers only one pathway. The unbranded capsule also provides no enhanced-delivery feature.

Study evidence
GABA Supportive 4 studies
Stress Relief
Stress Relief
Impact
High effect
C- Goal FitB+ Strength of SupportD CoverageB+ Formula Quality
GABA · 700 mg

GABA directly matches a calming neurotransmitter pathway, and the standalone amount is substantial. Oral GABA has uncertain access to the brain, so evidence for reliable stress relief is less consistent than its mechanism suggests.

Exact dosing and a focused single-ingredient design make the product easy to assess. The unbranded source lacks the fermented or clinical-grade identity that could strengthen quality confidence.

Study evidence
GABA Supportive 6 studies

Ingredients

IngredientAmount per serving
GABA
700 mg
Gluten Free Adults 18–50
Report overview
GABA · 700 mg OverallScore72
B- Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyD- Value

The standalone GABA dose is clearly disclosed and lies near the top of the preferred range. Its capsule delivery is reliable, although the unbranded source lacks a premium fermented quality marker. The serving cost is slightly above the value bands for standard GABA.

View ingredientView products
Loading alternative details
85 Performance

Pharma GABA 250 mg

Natural Factors Stress-Relax
<p>A meaningful amount of fermented branded GABA provides well-defined, focused relaxation support. Compared with the original, the fermented branded source provides clearer source definition; the defined source improves quality confidence, although individual response to oral GABA may still vary.</p>
79 Performance

PharmaGABA Chewables

Designs for Health
<p>Branded fermented GABA and a well-targeted amount provide focused relaxation support. Compared with the original, the fermented branded source provides clearer source definition; the defined source improves quality confidence, although individual response to oral GABA may still vary.</p>
77 Performance

Liposomal GABA

Quicksilver Scientific
<p>Liposomal delivery plus L-theanine creates a technically strong and coherent calming formula. Compared with the original, liposomal delivery and L-theanine provide a broader calming design; the supplied feedback and high serving cost still weaken value confidence.</p>
86 Budget

GABA

NOW
<p>A substantial GABA amount in flexible liquid form provides highly economical relaxation support. The lower serving cost improves value compared with the original; its lower amount may suit someone seeking a gentler serving, while ordinary oral GABA still has uncertain brain availability.</p>
81 Budget

GABA 750 mg

Source Naturals Serene Science
<p>A clearly disclosed upper-range GABA amount provides focused calming support in a simple formula, but ordinary oral GABA has uncertain access to the brain and human effects vary. The lower serving cost improves value compared with the original; its higher amount may increase drowsiness, while ordinary oral GABA still has uncertain brain availability.</p>
83 Budget

GABA 500 mg

Nutricost
<p>A clearly disclosed well-centered GABA amount provides focused calming support in a simple formula, but ordinary oral GABA has uncertain access to the brain and human effects vary. The lower serving cost improves value compared with the original; its lower amount may suit someone seeking a gentler serving, while ordinary oral GABA still has uncertain brain availability.</p>
89 Value

GABA Powder

Source Naturals Serene Science
<p>The combination of a flexible 750 mg GABA serving and an economical serving creates better practical value than the original. The larger amount may cause drowsiness, especially alongside alcohol or other sedating products.</p>
88 Value

GABA 500 mg

Swanson
<p>The combination of clearly disclosed 500 mg GABA and an economical serving creates better practical value than the original. Ordinary oral GABA has uncertain access to the brain, so individual effects may vary.</p>
87 Value

GABA 750 mg

NOW
<p>The combination of clearly disclosed 750 mg GABA and an economical serving creates better practical value than the original. The larger amount may cause drowsiness, especially alongside alcohol or other sedating products.</p>
Report alternatives

Sources

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

  1. 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
  2. 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
  3. 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 participantsStress Relief forGABA
  4. 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
  5. 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
  6. 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
  7. 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
  8. 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