Douglas Labs

GABA 500mg

Capsules · 60 capsules · 60 servings · $0.43/serving

  • Adults seeking GABA support for occasional stress and mental calm
  • Individuals looking to support relaxed mood with 500mg GABA
  • Those supporting restful sleep onset with GABAergic amino acids
  • Quality · 72% of verified reviews
★★★★☆ 4.6 (433) 1 sources
See breakdown →
Manufacturing61
Lab Verification78
Review Consensus97.9
Brand-verified ·Good manufacturing practices verifiedQuality ingredients with verified sourcingClean FDA regulatory recordPositive consumer reviews and community feedbackAuthorized distribution channel verified
$25.99
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Ingredients & product label

Serving Size: One Capsule

Amount Per Serving
GABA ... 500mg*
(Gamma Amino Butyric Acid)

Other Ingredients: Cellulose, gelatin (capsule), magnesium silicate, vegetable stearate and silica

This product does not contain

yeast
wheat
gluten
soy
milk/dairy
corn
sodium
sugar 
starch
artificial coloring
artificial preservatives
artificial flavoring
genetically modified organisms (GMOs)

For optimal storage conditions, store in a cool, dry place. Tamper resistant package, do not use if outer seal is missing.

Keep out of reach of children.

Label directions

As a dietary supplement, adults take 1 capsule daily or as directed by your healthcare professional.

Ingredient information is provided above. A clear label image is not available yet.

View original supplier image (quality may be limited)

Source: Fullscript supplier catalog · September 06, 2026. Formulas and labels can change. Check the packaging you receive.

About Douglas Labs - GABA 500mg

GABA 500mg from Douglas Labs delivers gamma-aminobutyric acid, the brain's primary inhibitory neurotransmitter, in a straightforward 500mg capsule format. Formulated to support relaxation, a calm mental state, and healthy stress response, it's suited for adults seeking neurological balance and occasional relief from everyday tension.

Why It's Worth Considering: Douglas Labs is a practitioner-trusted manufacturer with decades of clinical-grade production standards, and this single-ingredient format allows precise dosing without unnecessary excipients.

Why Gabriel Recommends This

Quality & Trust Score: 83 Moderate Evidence
Quality Verified
Douglas Labs products are evaluated across 50+ quality signals including manufacturing standards, lab verification, and ingredient sourcing transparency.
Label details
Ingredient amounts and serving sizes are shown in the product label section when supplier information is available.
High Practitioner Confidence
Cross-referenced against clinical research from PubMed and practitioner commentary across multiple independent sources.
Manufacturing Standards
Douglas Labs maintains GMP-certified manufacturing. Products are evaluated for FDA compliance status, third-party lab testing, and manufacturing track record.
Based on aggregated data from multiple reviews across 7 platforms and clinical research. How the Quality & Trust Score works →
Recommendation generated by Gabriel AI based on publicly available practitioner commentary and quality data. Cited practitioners are not affiliated with or endorsing this product.

How to Take

As a dietary supplement, adults take 1 capsule daily or as directed by your healthcare professional.

Who Benefits

Best For

  • Adults seeking GABA support for occasional stress and mental calm
  • Individuals looking to support relaxed mood with 500mg GABA
  • Those supporting restful sleep onset with GABAergic amino acids
  • Practitioner protocols requiring GABA supplementation for nervous system balance

Cautions

  • Known allergy to any ingredient (check label)
  • Currently pregnant or breastfeeding (consult healthcare provider)
  • Taking prescription medications (check for interactions)
  • Under 18 years of age (unless recommended by pediatrician)

Frequently Asked Questions

  • Store in a cool, dry place away from direct sunlight. Most supplements are stable at room temperature (59-77°F). Keep the bottle sealed between uses. Check the label for any specific storage requirements, some probiotics and oils require refrigeration.

  • Most supplements can be taken together safely. However, some minerals compete for absorption (zinc and iron, calcium and magnesium) and should be taken at different times of day. If you're taking prescription medications, consult your healthcare provider about potential interactions.

  • Most supplements benefit from consistent daily use over 2-3 months to achieve full effect. Some (like vitamins and minerals) can be taken indefinitely as part of a daily routine. Others (like specific herbs) may benefit from cycling. Follow the product's recommended protocol or consult a practitioner.

  • Fat-soluble supplements (vitamins A, D, E, K, omega-3, CoQ10) should be taken with a meal containing fat. Water-soluble supplements (B vitamins, vitamin C) can be taken anytime. Minerals are generally best absorbed with food. Probiotics should be taken with or just before a meal. Check the product label for specific timing recommendations.

  • Track your specific health goals, energy levels, sleep quality, joint comfort, digestion, mood, etc. Most supplements take 2-8 weeks for noticeable effects. For objective measurement, baseline lab tests before starting (and repeat at 3 months) provide definitive evidence. The Gabriel Score incorporates clinical evidence for expected outcomes.

Real Reviews. Real Sources.

4.6
433 reviews
5 star
75%
4 star
15%
3 star
5%
2 star
3%
1 star
2%
All (433)
0 Clinical Research
iHerb
0 iHerb
Amazon
433 Amazon
0 Practitioners
Reddit
0 Reddit
X
0 X
TikTok
0 TikTok
Instagram
0 Instagram
Substack
0 Substack
433 ratings aggregated across 1 sources · full-text reviews below
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Apotheca's Analysis · 50+ Signals Across 6 Dimensions
Reviews are practitioner recommendations listing Douglas Labs supplements with no direct patient feedback on GABA 500mg efficacy or experience.
Quality
72%
Value
65%
Efficacy
60%
Trust
68%
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Compatibility Guide

Compatibility Data Loading

Apotheca is analyzing ingredient interactions, stacking compatibility, and timing recommendations for Douglas Labs - GABA 500mg. This data will be available soon.

Research Behind This

Douglas Labs Product Quality Assessment
Quality & Trust Score Analysis
This product has been evaluated across 50+ quality signals including third-party testing, manufacturing standards, ingredient sourcing, and clinical evidence. Douglas Labs products are analyzed against our comprehensive database of practitioner-grade supplements.
Practitioner Network Endorsement Data
Apotheca Practitioner Intelligence
Douglas Labs is referenced across our practitioner network of clinical recommendations, YouTube health channels, and professional forums. Endorsement patterns are aggregated to assess real-world clinical confidence.

Practitioner Insights

Who This Is For

✓ Great For

Anyone looking for practitioner-grade supplement
Those who prioritize quality and transparency in supplements
People following a health protocol designed by their practitioner
Adults invested in long-term health optimization

⚠ Important Notes

Always consult your healthcare provider before starting any supplement
Check for interactions with current medications
If pregnant or nursing, seek professional guidance first
Compare options using Apotheca's AI to find the best fit for your goals
Douglas Labs is part of Gabriel's curated marketplace of practitioner-grade supplement brands. Every product from Douglas Labs is evaluated across 50+ quality signals including manufacturing standards, ingredient sourcing, third-party testing, and clinical evidence.
Gabriel VerifiedQuality Analyzed

† These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

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Douglas Labs
Douglas Labs - GABA 500mg
Quality & Trust Score
Strong quality signals. Meets recommended thresholds across most pillars.
Last updated: September 08, 2026
Score Breakdown
Manufacturing & GMP
61
Lab Verification
78
Review Consensus
97.9
Practitioner Confidence
52.0
Community & Social
56
Transparency
70
Consumer & Practitioner Intelligence
★★★★☆ 4.6 from 433 reviews across 1 sources
Amazon 433
Aggregated from verified purchases, practitioner clinical notes, and real-world outcome data
Scored across 50+ quality dimensions from 15+ independent databases. No brand can pay to influence their score. No sponsored rankings. Ever.
See how this product scores against your health profile · How the Quality & Trust Score works