PlainVitamins

5-Hydroxy Gaba

by Priority One Nutritional Supplements · capsule · 45 vegetarian capsules

  • On the market (NIH)
  • UPC 8 15354 02176 8
  • DSLD label 277331
  • Serving 1 vegetarian capsule
  • 45 servings

5-Hydroxy Gaba by Priority One Nutritional Supplements lists 10 ingredients, 10 with an amount per serving of 1 vegetarian capsule, such as 25 mg of thiamine hydrochloride, 25 mg NE of niacinamide, 5 mg of magnesium and 175 mg of inositol. Its current label entered the NIH Dietary Supplement Label Database on October 24, 2022.

What is in 5-Hydroxy Gaba?

Each row as the label prints it, per serving of 1 vegetarian capsule. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

5-Hydroxy Gaba: Supplement Facts rows against the market (DSLD label 277331, January 2026 release)
IngredientAmount% DVAmong products listing it
Thiamine Hydrochlorideas Vitamin B125 mg2,052%Thiamin in 5-Hydroxy Gaba against 9,830 products25 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg25 mg

Higher than 72% of 9,830 products listing thiamin (median 5 mg). Per day at the most servings: 75 mg.

Niacinamide25 mg NE156%Niacin in 5-Hydroxy Gaba against 12,413 products25 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg25 mg

Higher than 56% of 12,413 products listing niacin (median 20 mg). Per day at the most servings: 75 mg. 2.1 times the adult UL a day.

Magnesiumas Magnesium Aspartate, Magnesium Oxide5 mg1%Magnesium in 5-Hydroxy Gaba against 14,003 products5 mg per serving; the middle half of products list 30 mg to 200 mg, the median 86 mg.UL 350 mgDV 420 mg5 mg

96% of 14,003 products listing magnesium give more (median 86 mg). Per day at the most servings: 15 mg.

Inositol175 mgInositol in 5-Hydroxy Gaba against 4,042 products175 mg per serving; the middle half of products list 10 mg to 80 mg, the median 30 mg.175 mg

Higher than 88% of 4,042 products listing inositol (median 30 mg). Per day at the most servings: 525 mg.

L-5-Hydroxytryptophanas Griffonia simplicifolia Seed Extract98% Griffonia simplicifolia seed extract15 mg5-HTP in 5-Hydroxy Gaba against 676 products15 mg per serving; the middle half of products list 50 mg to 100 mg, the median 100 mg.15 mg

93% of 676 products listing 5-HTP give more (median 100 mg). Per day at the most servings: 45 mg.

Valerian Root Extractas Valerenic Acid0.8% Valerenic Acid15 mgValerian in 5-Hydroxy Gaba against 647 products15 mg per serving; the middle half of products list 80 mg to 450 mg, the median 200 mg.15 mg

96% of 647 products listing valerian give more (median 200 mg). Per day at the most servings: 45 mg.

Hops50 mgHops in 5-Hydroxy Gaba against 342 products50 mg per serving; the middle half of products list 50 mg to 150 mg, the median 75 mg.50 mg

60% of 342 products listing hops give more (median 75 mg). Per day at the most servings: 150 mg.

Passionflower25 mgPassionflower in 5-Hydroxy Gaba against 562 products25 mg per serving; the middle half of products list 40 mg to 200 mg, the median 100 mg.25 mg

81% of 562 products listing passionflower give more (median 100 mg). Per day at the most servings: 75 mg.

L-Glutamic Acid25 mgGlutamic Acid in 5-Hydroxy Gaba against 697 products25 mg per serving; the middle half of products list 25 mg to 364 mg, the median 80 mg.25 mg

67% of 697 products listing glutamic acid give more (median 80 mg). Per day at the most servings: 75 mg.

GABA100 mgGABA in 5-Hydroxy Gaba against 744 products100 mg per serving; the middle half of products list 80 mg to 400 mg, the median 100 mg.100 mg

48% of 744 products listing GABA give more (median 100 mg). Per day at the most servings: 300 mg.

Source: NIH ODS Dietary Supplement Label Database, label 277331 (entered October 24, 2022), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • At 3 servings a day, the most its directions give, the label lists 75 mg of niacin, 2.1 times the adult Tolerable Upper Intake Level.
  • 96% of the 14,003 products that print an amount of magnesium list more than its 5 mg of magnesium (median 86 mg).
  • 93% of the 676 products that print an amount of 5-HTP list more than its 15 mg of L-5-hydroxytryptophan (filed by NIH under 5-HTP) (median 100 mg).
  • 96% of the 647 products that print an amount of valerian list more than its 15 mg of valerian (median 200 mg).

The NIH database records 3 servings a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

The products whose ingredient lists overlap most with 5-Hydroxy Gaba's, rare ingredients counting for more.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Recommendations: Take one (1) capsule three (3) times daily, or as directed by your physician.
Warnings
Warning: If you are pregnant or breast feeding, consult your physician before using this product.
Keep out of reach of children.
For professional use only.
Allergens and what it does not contain
Contains no preservatives.
Non-GMO
Storage
Keep container tightly closed, store in a cool, dry place.

Source: label statements in DSLD label 277331.

What else is on the label?

Other ingredients: Rice Flour, Silicon Dioxide, Hypromellose, Water, Purified.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GMP Certified.

How many labels does 5-Hydroxy Gaba have?

6 labels are on file under this name since September 25, 2020: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 277331 (current) Entered October 24, 2022 · on the market · 45 vegetarian capsules · UPC 8 15354 02176 8
  2. Label 277330 Entered October 24, 2022 · on the market · 90 vegetarian capsules · UPC 8 15354 02001 3
  3. Label 253032 Entered August 23, 2021 · off the market March 16, 2022 · 90 vegetarian capsules · UPC 8 15354 02001 3
  4. Label 253031 Entered August 23, 2021 · off the market March 16, 2022 · 45 vegetarian capsules · UPC 8 15354 02176 8
  5. Label 235577 Entered September 25, 2020 · off the market June 15, 2021 · 90 vegetarian capsules · UPC 8 15354 02001 3
  6. Label 235576 Entered September 25, 2020 · off the market June 15, 2021 · 45 vegetarian capsules · UPC 8 15354 02176 8

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names Priority One Nutritional Supplements, Inc. (distributor). All Priority One Nutritional Supplements products.

Where next?