Sleep
GABA (Supplemental)
Also known as: GABA (Gamma-Aminobutyric Acid)
Inhibitory neurotransmitter supplement with debated BBB penetration. May work peripherally for relaxation.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Every GABA (Supplemental) product we have scored
| # | Product | Score | Per serving |
|---|---|---|---|
| 1 | Pure Encapsulations Pure Tranquility Liquid | 87 A | $1.76 |
| 2 | Seed PM-02™ Sleep + Restore Supplement | 86 A- | $1.17 |
| 3 | Pure Encapsulations Emotional Wellness | 86 A- | $1.29 |
| 4 | Nutricost Mood Complex Capsules | 85 A- | $0.44 |
| 5 | Natural Factors PharmaGABA 250 mg | 85 A- | $0.83 |
| 6 | Pure Encapsulations Best-Rest Formula | 84 A- | $1.23 |
| 7 | NOW Foods GABA | 84 A- | $0.10 |
| 8 | Pure Encapsulations GABA | 83 A- | $0.38 |
| 9 | Nutricost Sleep Aid Complex Capsules | 83 A- | $0.47 |
| 10 | Double Wood GABA Supplement | 83 A- | $0.13 |
| 11 | Nested Naturals LUNA Gentle Sleep Supplement | 82 A- | $0.73 |
| 12 | Olly Ultra Strength Goodbye Stress Softgels | 81 A- | $0.67 |
Scored on dose accuracy, form, label transparency and third-party testing. Per-serving cost is list price divided by servings per container. No brand pays to be listed or ranked.
Common questions
How much GABA (Supplemental) should I take?
The typical range is 250-750 mg daily. Acute effects
When should I take GABA (Supplemental)?
Evening. Optional.
Which form of GABA (Supplemental) is best?
Capsules — Standard. Other forms in the catalog: PharmaGABA.
Is GABA (Supplemental) safe?
Commonly reported: Drowsiness, Tingling. Serious warnings: None significant. Safe
Which GABA (Supplemental) supplement scores highest?
Pure Encapsulations Pure Tranquility Liquid, at 87/100. Scored on dose accuracy, form, label transparency and third-party testing — no brand pays to be listed or ranked.
Primary uses
- Relaxation
- Sleep support
- Stress reduction
How it works
- Main inhibitory neurotransmitter
- BBB penetration debated
- May work via gut-brain axis
Dosage
- Typical range
- 250-750 mg daily
- Timing
- Evening
- With food
- Optional
- Duration
- Acute effects
- Special populations
- Mild anxiety, sleep
Forms
- Capsules
- PharmaGABA
Safety
Common side effects
- Drowsiness
- Tingling
Contraindications
- None
Products containing GABA (Supplemental)
Top-scoring supplements in our catalog that list GABA (Supplemental) on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
Evidence notes
Debated effectiveness - BBB penetration unclear
Grade C: Mostly observational or small trials; mechanism is plausible but unproven at scale.
GABA (Supplemental) compared head-to-head
Related in Sleep
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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.