GABA (gamma aminobutyric acid) supplements with the fewest additives

GABA supplements often contain more than just the active ingredient. For example, silica or silicon dioxide are often added to prevent caking, magnesium stearate or stearic acid for easier manufacturing, and hypromellose (hydroxypropyl methylcellulose) as an emulsifier or thickener.

I try to avoid these additives because they may have questionable health effects. If you want to do the same, my recommendations for the purest GABA supplements are:

Recommended as purest GABA capsule:

Metabolic Maintenance GABA-750 (Veggie Capsules)
Available on iHerb
Positives:
  • silica-free / silicon-dioxide-free
  • stearic acid-free / magnesium stearate-free
  • hypromellose-free / hydroxypropyl methylcellulose-free
Negatives:
(none)
All ingredients:

GABA (gamma aminobutyric acid), glycine, vegetarian capsule.

Recommended as purest GABA powder:

Now Foods GABA (Powder)
Available on iHerb

* I recommend this brand because it is the cheapest pure powder at the time of this writing. However, there are some equally pure powders listed in "Other GABA supplements" below if you prefer another brand.

Positives:
  • silica-free / silicon-dioxide-free
  • stearic acid-free / magnesium stearate-free
  • hypromellose-free / hydroxypropyl methylcellulose-free
Negatives:
(none)
All ingredients:

GABA.


Other GABA supplements

The following are other GABA supplements I'm aware of, sorted alphabetically.

Name Ingredients
AST Sports Science GABA (Powder)

GABA.

Allergy Research Group Zen (Veggie Capsules)

GABA (gamma-aminobutyric acid), l-theanine, hydroxypropyl methylcellulose, l-leucine.

Country Life Gluten Free GABA Relaxer Rapid Release (Tablets)

Niacin (as niacinamide), vitamin B-6 (as pyridoxine hydrochloride), taurine (free form), inositol, glycine (free form), GABA (gamma-aminobutyric acid), cellulose, stearic acid, cellulose & glycerin coating, magnesium stearate, silica, natural flavor, vegetable glaze.

Dymatize Nutrition GABA Growth Hormone Activator (Powder)

GABA.

Jarrow Formulas Gaba Soothe (Veggie Capsules)

Gamma-aminobutyric acid (GABA) (PharmaGABA), theanine (suntheanine), sensoril (ashwagandha extract) (roots/leaves) (withania somnifera), cellulose, magnesium stearate (vegetable source) and silicon dioxide, capsule consists of hydroxypropylmethylcellulose.

Kirkman Labs GABA (Capsules)

GABA, gamma-aminobutyric acid, plant cellulose, silicon dioxide, plant cellulose capsule.

Life Extension GABA (Powder)

GABA.

Natural Factors Stress Relax Pharma GABA (Veggie Capsules)

Gamma amino butyric acid (GABA), rice powder, vegetarian capsule (modified cellulose, purified water, silica), magnesium stearate (vegetable grade), silica.

Natural Factors Stress-Relax Pharma GABA (Tablets)

Gamma amino butyric acid (GABA), stearic acid, silica, natural fruit flavor (banana, pomegranate, pineapple, mango, passion fruit), citric acid, magnesium stearate (vegetable grade).

Now Foods GABA (Capsules)

Vitamin B-6 (from pyridoxine hydrochloride), GABA (gamma aminobutyric acid), rice flour, gelatin (capsule), magnesium stearate (vegetable source) and silica.

Now Foods GABA (Veggie Capsules)

GABA (gamma aminobutyric acid), cellulose (capsule), silica and magnesium stearate (vegetable source).

Now Foods GABA Natural Calming Effect (Capsules)

Vitamin B-6 (from pyridoxine hydrochloride), GABA (gamma aminobutyric acid), rice flour, gelatin (capsule), magnesium stearate (vegetable source) and silica.

Now Foods GABA Natural Orange Flavor (Chewable)

GABA (gamma aminobutyric acid), taurine, inositol, l-theanine (suntheanine), xylitol, sorbitol, cellulose, natural orange juice powder, stearic acid (vegetable source), citric acid, xanthan gum, beta-carotene, natural orange flavor, natural vanilla flavor, ascorbyl palmitate, silica and natural lemon flavor. Contains soy derivatives.

Progressive Laboratories GABA-Val (Capsules)

Thiamine, niacinamide, magnesium (amino acid chelate), valerian root extract, inositol, gamma amino butyric acid (GABA), lupulin (hops pollen), glutamic acid, passion flower, brain tissue (porcine), rice flour, vegetable magnesium stearate, gelatin.

Solgar GABA (Veggie Capsules)

Calcium (as dicalcium phosphate), GABA (as gamma aminobutyric acid), dicalcium phosphate, vegetable cellulose, microcrystalline cellulose, vegetable magnesium stearate, silica.

Source Naturals GABA (Powder)

GABA.

Source Naturals GABA (Tablets)

GABA (gamma-aminobutyric acid), sorbitol, stearic acid, modified cellulose gum, colloidal silicon dioxide, and magnesium stearate.

Source Naturals GABA Calm Peppermint Flavored Sublingual (Tablets)

Magnesium (as magnesium chelate), GABA (gamma-aminobutyric acid), glycine, n-acetyl l-tyrosine, taurine, sorbitol, mannitol, natural peppermint flavor, stearic acid, and magnesium stearate.

Source Naturals Gaba Calm (Tablets)

Magnesium (as magnesium chelate), GABA (gamma-aminobutyric), glycine, n-acetyl l-tyrosine, taurine, sorbitol, mannitol, modified cellulose gum, natural orange flavor, stearic acid and magnesium stearate. Contains soy.

Superior Source GABA (Tablets)

Gamma-aminobutyric acid (GABA), stevia leaf extract, lactose (milk), gum arabic and natural flavors.

Thorne Research PharmaGABA-100 (Veggie Capsules)

Gamma-aminobutyric acid (GABA), microcrystalline cellulose, hypromellose (derived from cellulose) capsule, magnesiumcitratelaurate.

Thorne Research PharmaGABA-250 (Veggie Capsules)

Gamma-aminobutyric acid (GABA), microcrystalline cellulose, hypromellose (derived from cellulose) capsule, magnesium citrate laurate.

Twinlab GABA-Plus with Inositol & Niacinamide (Capsules)

Niacin (from niacinamide), GABA (gamma amino butyric acid), inositol, gelatin, medium chain triglycerides, silica, magnesium stearate.

Vitanica GABA Ease (Veggie Capsules)

Vitamin B6 (as HCI), GABA (gamma-aminobutyric acid), l-theanine, passionflower leaf & stem extract 5:1, ~passiflora incarnate, hops flower extract 4:1, ~humulus luputus, skullcap leaf & stem extract 4:1, ~scutellaria lateriflora, vegetarian capsule (cellulose and water), l-leucine, silica.


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