Food-grade gamma-aminobutyric acid powder with at least 95% GABA by HPLC, made by lactic acid fermentation of glutamic acid from rice bran and rice germ. Water-soluble, with a composition of rice extract 100%. Specification and SDS before you order, lot CoA with every shipment.
Tell us what you are developing and which documents you need. We reply from Japan within one working day with the product specification, SDS and the CoA of the current lot.
Production starts from rice germ and the seed coat of rice bran. The germ is defatted and enriched in GABA, then extracted and fermented with Lactobacillus hilgardii, a lactic acid bacterium that converts rice-derived glutamic acid into gamma-aminobutyric acid. The fermented extract is isolated, refined, concentrated, sterilised and dried to a water-soluble powder with at least 95% GABA.
Step 1 · Oryza sativa
Germ and seed coat of rice bran as raw material
Step 2 · fat removal
Fat removed from the germ
Step 3 · in the germ
GABA content raised before extraction
Step 4 · extract
Extract taken from the enriched germ
Step 5 · Lactobacillus hilgardii
Rice-derived glutamic acid converted to GABA
Step 6 · purification
GABA isolated and refined
Step 7 · sterilisation
Before drying
Step 8 · min. 95% GABA
Lot tested by HPLC and released with its CoA
The grade on this page. Other grades, where available, are specified on request.
Example lot values are published in the developer's guide below. They are an example, not a specification; your lot's CoA governs.
A Japanese trading company selling directly to brand owners and contract manufacturers. No distributor layer between you and the documents.
Every shipment travels with the Certificate of Analysis of its own lot, with the measured values and the full safety panel.
A small first order lets you run a pilot batch before committing to bulk. Larger volumes are quoted by volume and delivery terms.
For registered companies developing a product. Tell us the format you plan and we will say honestly what to expect.
After payment is received. Freight quoted on request. Specification and SDS before you order, CoA with the goods.
If you are comparing ingredients for a new SKU, these questions separate one material from another quickly.
This grade is made by lactic acid fermentation of rice-derived glutamic acid, not by chemical synthesis. If your label or marketing will say fermented or from rice, ask for the specification and process outline first and check that they support the exact wording you plan to use.
The powder dissolves in water, so it suits drinks and stick packs as well as capsules and tablets. Particle size is not part of the standard specification: tell us your format and any mesh requirement before we send a sample, so the trial gives you a useful answer.
GABA is marketed as a dietary supplement ingredient in the US, but classification and permitted wording differ elsewhere, and in some markets GABA is not on the list of ingredients allowed in supplements. Registration of the finished product sits with the importer or brand owner, so confirm the route before you formulate.
Recent producer lots carry a halal mark; ask for a copy of the current certificate with your quotation. Kosher certification is not available for this grade.
The specification, SDS and lot CoA are ready. Anything beyond these, such as allergen or origin statements, is requested from the producer for your order, so list it early.
What each component is, what the processing changes, and what published research on the raw material has examined. No health claims; references on request.
This is gamma-aminobutyric acid supplied as a concentrated, food-grade powder: at least 95% GABA by HPLC, with the composition stated as rice extract 100%. It is made by lactic acid fermentation of glutamic acid from rice bran and rice germ, so a brand can describe the source as fermented and rice-derived, provided the wording fits the rules of its market.
It is bought by brand owners and contract manufacturers building products in the relaxation, focus and evening-routine categories, and by R&D teams that need a high-purity GABA with a clear documentation trail: specification and SDS before the order, a Certificate of Analysis with every lot.
At 95% purity the GABA dose stays compact. About 105 mg of powder delivers 100 mg of GABA, which leaves room in a capsule, tablet or sachet for other actives and keeps the ingredient list short.
Because the powder dissolves in water and the active content is high, it fits small capsule and tablet fills as well as stick packs, powdered drink mixes and ready-to-drink beverages. Tell us your format and we will match the sample to it. If you need a finished product rather than the raw material, we also make capsules, sticks and tablets at our own Tomioka Plant in Gunma, Japan, from 5,000 units per SKU.
Related ingredients: Lion's Mane mushroom powder, a whole fruiting-body powder for focus formulas, and lactic acid fermented barley extract powder, another lactic-fermented ingredient from Japan.
The notes below describe the substance and the published research on it. They are a reference for product developers, not claims for this ingredient or for any finished product.
Gamma-aminobutyric acid (GABA, 4-aminobutyric acid, C₄H₉NO₂) is a four-carbon amino acid that is not built into proteins. It is widely distributed in nature [1], and in the mammalian brain it is the main inhibitory neurotransmitter [2]. GABA occurs naturally in foods, and it is also made on purpose by fermentation [2].
Lactic acid bacteria make GABA from glutamic acid. The key enzyme, glutamate decarboxylase, removes a carboxyl group from glutamate and releases GABA. Because lactic acid bacteria are food-grade organisms, this route is widely used for GABA intended for foods; a systematic review covers the species involved, the enzyme and the ways producers raise yield [1]. In this ingredient the glutamic acid comes from rice bran and rice germ, and the fermenting organism is Lactobacillus hilgardii.
The GABA molecule is the same whatever its origin. What differs is the raw material, the process and the documents behind them. One systematic review separates GABA present naturally in foods from biosynthetic GABA produced by fermentation [2]; GABA can also be made by chemical synthesis. For a brand, the practical point is that words such as fermented or from rice on a label need the supplier's process documents behind them.
Most human studies of oral GABA have measured stress-related outcomes and sleep. A 2020 systematic review included fourteen placebo-controlled human trials of natural or fermentation-derived GABA. Its authors conclude that more studies are needed before inferences can be made, and describe the evidence as limited for stress and very limited for sleep [2]. We quote this so that formulators see the state of the evidence as it is.
A related open question is whether GABA taken by mouth reaches the brain. A 2015 review notes that GABA has long been thought unable to cross the blood-brain barrier, that the studies on this are contradictory, and that any effects might also run through the enteric nervous system of the gut; it calls for further research [3].
The United States Pharmacopeia reviewed the safety of GABA as a dietary supplement, using clinical studies, adverse-event information and toxicology data. It found no serious adverse events at intakes up to 18 g a day for 4 days, or at 120 mg a day in 12-week studies, and no signs of toxicity in long-term studies in rats and dogs at up to 1 g per kg body weight a day. The review advises caution during pregnancy and lactation and when GABA is combined with blood-pressure medication [4].
In the United States GABA is marketed as a dietary supplement [4]. Classification, permitted uses and claim wording differ in other markets, and in some of them GABA is not on the list of ingredients allowed in supplements. Check the route for your finished product before you formulate.
Start at the minimum order. Free sample. Specification, SDS and lot CoA on request.
Request a sample or quotationThis is gamma-aminobutyric acid supplied as a concentrated, food-grade powder: at least 95% GABA by HPLC, with the composition stated as rice extract 100%. It is made by lactic acid fermentation of glutamic acid from rice bran and rice germ, so a brand can describe the source as fermented and rice-derived, provided the wording fits the rules of its market.
It is bought by brand owners and contract manufacturers building products in the relaxation, focus and evening-routine categories, and by R&D teams that need a high-purity GABA with a clear documentation trail: specification and SDS before the order, a Certificate of Analysis with every lot.
At 95% purity the GABA dose stays compact. About 105 mg of powder delivers 100 mg of GABA, which leaves room in a capsule, tablet or sachet for other actives and keeps the ingredient list short.
Because the powder dissolves in water and the active content is high, it fits small capsule and tablet fills as well as stick packs, powdered drink mixes and ready-to-drink beverages. Tell us your format and we will match the sample to it. If you need a finished product rather than the raw material, we also make capsules, sticks and tablets at our own Tomioka Plant in Gunma, Japan, from 5,000 units per SKU.
Related ingredients: Lion's Mane mushroom powder, a whole fruiting-body powder for focus formulas, and lactic acid fermented barley extract powder, another lactic-fermented ingredient from Japan.
The notes below describe the substance and the published research on it. They are a reference for product developers, not claims for this ingredient or for any finished product.
Gamma-aminobutyric acid (GABA, 4-aminobutyric acid, C₄H₉NO₂) is a four-carbon amino acid that is not built into proteins. It is widely distributed in nature [1], and in the mammalian brain it is the main inhibitory neurotransmitter [2]. GABA occurs naturally in foods, and it is also made on purpose by fermentation [2].
Lactic acid bacteria make GABA from glutamic acid. The key enzyme, glutamate decarboxylase, removes a carboxyl group from glutamate and releases GABA. Because lactic acid bacteria are food-grade organisms, this route is widely used for GABA intended for foods; a systematic review covers the species involved, the enzyme and the ways producers raise yield [1]. In this ingredient the glutamic acid comes from rice bran and rice germ, and the fermenting organism is Lactobacillus hilgardii.
The GABA molecule is the same whatever its origin. What differs is the raw material, the process and the documents behind them. One systematic review separates GABA present naturally in foods from biosynthetic GABA produced by fermentation [2]; GABA can also be made by chemical synthesis. For a brand, the practical point is that words such as fermented or from rice on a label need the supplier's process documents behind them.
Most human studies of oral GABA have measured stress-related outcomes and sleep. A 2020 systematic review included fourteen placebo-controlled human trials of natural or fermentation-derived GABA. Its authors conclude that more studies are needed before inferences can be made, and describe the evidence as limited for stress and very limited for sleep [2]. We quote this so that formulators see the state of the evidence as it is.
A related open question is whether GABA taken by mouth reaches the brain. A 2015 review notes that GABA has long been thought unable to cross the blood-brain barrier, that the studies on this are contradictory, and that any effects might also run through the enteric nervous system of the gut; it calls for further research [3].
The United States Pharmacopeia reviewed the safety of GABA as a dietary supplement, using clinical studies, adverse-event information and toxicology data. It found no serious adverse events at intakes up to 18 g a day for 4 days, or at 120 mg a day in 12-week studies, and no signs of toxicity in long-term studies in rats and dogs at up to 1 g per kg body weight a day. The review advises caution during pregnancy and lactation and when GABA is combined with blood-pressure medication [4].
In the United States GABA is marketed as a dietary supplement [4]. Classification, permitted uses and claim wording differ in other markets, and in some of them GABA is not on the list of ingredients allowed in supplements. Check the route for your finished product before you formulate.
The specification guarantees at least 95% gamma-aminobutyric acid, measured by HPLC. A recent lot manufactured in February 2026 tested at 99%. Every lot ships with its own Certificate of Analysis covering GABA content, loss on drying, ignition residue, heavy metals, arsenic and microbiology.
Fermented. Glutamic acid from rice bran and rice germ is converted to GABA by Lactobacillus hilgardii, a lactic acid bacterium, and the extract is refined to a water-soluble powder. The specification lists the composition as rice extract 100%, food grade.
The minimum order is 1 kg at 800 USD/kg; larger volumes are quoted by volume. Standard packing is 5 kg, with a 1 kg pack for trial orders. Orders ship from Japan 1-1.5 weeks after payment. Payment is 100% prepayment by SWIFT or Stripe, and freight is quoted on request.
The product specification and SDS are available before you order, and a lot Certificate of Analysis travels with every shipment. Under GHS the powder carries no pictogram, signal word or hazard statement, and it is not dangerous goods for transport. Recent producer lots carry a halal mark; ask for the current certificate. Kosher certification is not available.
