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Cheapest gamma-Aminobutyric acid (PharmaGABA) on iHerb

Ranked by real cost per 10 mg of gamma-Aminobutyric acid (PharmaGABA) — cheapest value first.

Prices updated Jul 25, 2026 · 5 products · Prices in USD

The priciest option here costs about 3.3× more per 10 mg of gamma-Aminobutyric acid (PharmaGABA) than the best-value pick Natural Factors. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 10 mg
1
Natural Factors, Stess-Relax®, Nighttime Magnesium Glycinate With Melatonin, GABA & L-Theanine, 60 Capsules
Natural Factors, Stess-Relax®, Nighttime Magnesium Glycinate With Melatonin, GABA & L-Theanine, 60 Capsules
Natural Factors
100 mg3019.570.065View on iHerb →
2
Natural Factors, Stress-Relax®, Nighttime Magnesium Bisglycinate Powder with Melatonin, Gaba & L-Theanine, Tropical Fruit, 4.23 oz (120 g)
Natural Factors, Stress-Relax®, Nighttime Magnesium Bisglycinate Powder with Melatonin, Gaba & L-Theanine, Tropical Fruit, 4.23 oz (120 g)
Natural Factors
100 mg3020.970.070View on iHerb →
3
Designs For Health, PharmaGABA®, 60 Chewable Tablets (100 mg per Tablet)
Designs For Health, PharmaGABA®, 60 Chewable Tablets (100 mg per Tablet)
Designs For Health
200 mg3057.990.097View on iHerb →
4
Designs For Health, Insomnitol™, 60 Vegetarian Capsules
Designs For Health, Insomnitol™, 60 Vegetarian Capsules
Designs For Health
100 mg3055.990.187View on iHerb →
5
Designs For Health, NeuroCalm™, 60 Vegetarian Capsules
Designs For Health, NeuroCalm™, 60 Vegetarian Capsules
Designs For Health
100 mg3064.990.217View on iHerb →

How we rank gamma-Aminobutyric acid (PharmaGABA)

Two supplements can list the same dose per serving yet cost very differently once you account for how many servings are in the bottle. We calculate the total nutrient in each container (dose per serving × servings per container), divide the current price by that total, and rank by the resulting cost per unit. Lower is better. Because prices are refreshed automatically, this ranking reflects today's iHerb pricing rather than a snapshot from months ago.

Cost per unit is a starting point, not the whole story — the ideal form, third-party testing, and other ingredients matter too. Always check the label and consult a healthcare professional before starting a supplement.

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Prices update automatically and may differ from iHerb at checkout. Rankings are based on cost per unit of the listed nutrient and are for informational purposes only — not medical advice. Links to iHerb are affiliate links.