Best GABA Supplements 2026: Cost per Effective Dose
Top pick for GABA: Nutricost GABA 750 mg — 750mg GABA per 1 capsule, Third-party tested (brand claim), $0.08/day.
All GABA Supplements Compared
All 6 products sorted by cost per labelled serving (lowest first). Dose, certification, and pricing verified against NIH DSLD and manufacturer data.
Read the dose column before the price column. Servings in this category are not equivalent — they range from 100 to 750 mg per serving. A lower cost per day here can simply mean a smaller serving, so the cheapest row is not automatically the best value.
| Product | Brand | Dose / Serving | Cost / Day | Certification | Pick | Buy |
|---|---|---|---|---|---|---|
| Nutricost GABA 750 mg | Nutricost | 750mg GABA / 1 capsule | $0.08 | Third-party tested (brand claim) | Buy | |
| NOW GABA 500 mg | NOW Foods | 500mg GABA / 1 capsule | $0.09 | cGMP | Buy | |
| NOW Foods GABA 750 mg | NOW Foods | 750mg GABA / 1 capsule | $0.10 | cGMP | Buy | |
| Source Naturals Serene Science GABA 750 mg | Source Naturals | 750mg GABA / 1 capsule | $0.12 | cGMP | Buy | |
| Thorne PharmaGABA-100 | Thorne | 100mg GABA / 1 capsule | $0.57 | NSF Certified for Sport | Buy | |
| Jarrow Formulas GABA Soothe | Jarrow Formulas | 100mg GABA / 1 capsule | $0.74 | cGMP | Buy |
In-Depth GABA Guides
Go deeper on gaba — by goal, by form, and what the evidence actually supports:
Our Picks
Lowest Cost: Nutricost GABA 750 mg
750mg GABA per 1 capsule. Third-party tested (brand claim). $0.08/day. 240 servings per container at $19.95.
How We Rank GABA Supplements
Every product is evaluated on three criteria:
- Cost per day. Not cost per pill or cost per bottle — what it actually costs per day at the product's labelled serving. Where a category's servings differ in strength we flag it above the table, because cost per day is only comparable when the doses are.
- Third-party certification. USP Verified, NSF Certified for Sport, and ConsumerLab Approved indicate independent testing for purity, potency, and contaminants.
- Bioavailable form. We prioritize products using the specific chemical form shown to be most effective in published research.
Rankings are not influenced by affiliate commissions. We earn the same commission regardless of which product you choose. Read our full methodology.
Personalize Your GABA Choice
Not sure which gaba supplement is right for you? Use our free tools:
- DNA Supplement Analyzer — upload 23andMe or AncestryDNA data to check for genetic variants affecting gaba metabolism. Runs entirely in your browser.
- Lab Results Interpreter — enter your blood test values to get personalized dosing recommendations.
- Supplement Stack Builder — build a complete protocol based on your age, sex, medications, and goals.
- Supplement Audit — already taking gaba? Check if you have the right form and dose.