GABA Probiotic, LP815®

Stress, irritability, and sleep support

for prolonged release of GABA

Natural GABA for gut-brain modulation

GABA (Gamma-Aminobutyric Acid) is a major inhibitory neurotransmitter and functional metabolite that plays a key role in signaling the nervous system.1 Studies suggest that GABA’s main mechanism of action is to aid in slowing the stimulation of specific nerve signals in the brain, supporting mood and stress regulation.2 Deficits in GABA levels can lead to a cascade of health outcomes ranging from stress and mood swings to impacts on sleep quality. 3-5

GABA Probiotic is designed to deliver a prolonged time release of GABA to provide calming, stress, and sleep support consistently throughout the day and night.

73%

of consumers struggle with mental health symptoms6

59%

of U.S. consumers struggle with stress6

46%

of U.S. consumers struggle with sleeplessness6

Mechanism of Action

GABA produced in the gut can affect brain function and mood via a bidirectional communication pathway. GABA Probiotic delivers GABA through oral ingestion while working with one’s existing gut microbiota to produce additional GABA.

Image of the gut-brain feedback loop. Neuromodulators, Dysbiosis and Bidirectional signaling.

Prolonged GABA release, Lactiplantibacillus plantarum, LP815®

Lactiplantibacillus plantarum, LP815™, a proprietary strain of lactic acid bacteria, was isolated for its ability to provide sustained GABA production. By utilizing advanced computational modeling and high-throughput screening, we benchmarked against the top strains in the industry to select a superior GABA
producer.

This bacterial strain is unique for its robust and prolonged production of GABA in the gastrointestinal tract in contrast to traditional GABA supplements, which result in an immediate but transient spike in GABA levels, requiring redosing throughout the day.

Benefits
of GABA Probiotic, LP8152,5, 7-8

Helps reduce feelings of irritability

Promotes a calm mood

Supports a healthy stress management

Supports deep restorative sleep

Helps reduce nighttime sweating

Evidence You Can Trust

Explore peer-reviewed clinical publications that validate the science behind Verb Biotics’ function-specific solutions. Our research underscores our commitment to proven efficacy and measurable outcomes.

Lactiplantibacillus plantarum LP815 decreases anxiety in people with mild to moderate anxiety: a direct-to-consumer, randomised, double-blind, placebo-controlled study

Beneficial Microbes, 2025

Read Study

How GABA Probiotic works

GABA factory

The ability of LP815 to produce GABA itself can be thought of as enabling a GABA factory in the gut. This localized, sustained production supports more consistent modulation of mood, stress response, and nervous system signaling

GI performance

GABA Probiotic is derived from a natural Lactiplantibacillus plantarum strain that survives the harsh conditions of the gut to produce GABA.

Prolonged release

Unlike traditional GABA supplements which deliver a bolus dose of GABA resulting in an immediate but transient spike of GABA levels that is gone in a few hours, GABA Probiotic offers a consistent and prolonged time release of GABA, and has been studied and evaluated for its ability to provide extended and consistent stress, irritability, and sleep modulation throughout the day and night.

Lower dosage for greater application flexibility

GABA Probiotic at a dose of 5 billion CFU, produces 50mg of GABA which is the dose associated with stress, irritability, and sleep benefits.2-5, 7-8 This low CFU dose enables flexibility when formulating.

Applications

Add in mood, stress, sleep, and relaxation dietary supplements. Stack with other function-specific biotics for a robust symbiotic offering.

STRESS & MOOD | SLEEP QUALITY | GUT-BRAIN AXIS | CALMING & RELAXATION

 

 GRAS  |  Allergen-free | Non-GMO | Produced in USA

Frequently Asked Questions

What makes LP815 unique?

LP815 is function-first, not CFU-first. Most probiotics focus on colony-forming units and colonization. LP815 is designed to produce GABA, a bioactive that supports the gut-brain axis, delivering consistent, measurable effects instead of variable bacterial counts.

What makes LP815 a 'GABA-producing' probiotic?

LP815 works with existing microbes in the gut to create more GABA, acting as a “GABA factory,” delivering steady GABA to support calm mood, stress resilience, and sleep—unlike quick-spike supplements.

How does LP815 support sleep?

LP815 supports sleep by sustaining GABA levels from day to night. GABA regulates the body’s relaxation response and signals readiness for rest. By maintaining steady GABA via the gut-brain axis, LP815 promotes deeper relaxation and more consistent sleep quality over time, not just short-term effects.

Why does the body need GABA—and how does LP815 help?

Your body relies on steady GABA signaling to maintain calm, stress resilience, and balanced mood. LP815 is a GABA-producing probiotic designed to support this pathway from the gut. By helping maintain consistent GABA availability via the gut-brain axis, LP815 provides dual-action stress and sleep support.

Is LP815 clinically studied?

Yes! LP815 is supported by real-world research and peer-reviewed data on stress, mood, and sleep outcomes. LP815 is GRAS, non-GMO, and allergen-free, meeting the highest standards of safety and quality. Made in the U.S., LP815 is suitable for use in a variety of dietary supplements. Read the study in full here.

Interested in learning more 
about GABA Probiotic?

Let's Talk
Sources

 

  1. Jewett BE, Sharma S. Physiology, GABA. StatPearls. 2023.
  2. Hepsomali P, Groeger JA, Nishihira J, Scholey A. Effects of Oral Gamma-Aminobutyric Acid (GABA) Administration on Stress and Sleep in Humans: A Systematic Review. Front Neurosci 2020;14:923. https://doi.org/10.3389/fnins.2020.00923.
  3. Yamatsu A, Yamashita Y, Pandharipande T, Maru I, Kim M. Effect of oral γ-aminobutyric acid (GABA) administration on sleep and its absorption in humans. Food science and biotechnology. 2016;25(2):547-551.
  4. Yamatsu A, Yamashita Y, Maru I, Yang J, Tatsuzaki J, Kim M. The Improvement of Sleep by Oral Intake of GABA and Apocynum venetum Leaf Extract. Journal of nutritional science and vitaminology. 2015;61(2):182-187.
  5. Yoto A, Murao S, Motoki M, et al. Oral intake of γ-aminobutyric acid affects mood and activities of central nervous system during stressed condition induced by mental tasks. Amino acids. 2012;43(3):1331-1337.
  6. Verb Biotics Consumer Health Survey July 2024, n=2,018
  7. Stress in America 2023; a nationwide survey conducted by The Harris Poll on behalf of America Psychological Association among more than 3,000 U.S. adults age 18+. LINK
  8. Abdou AM, Higashiguchi S, Horie K, Kim M, Hatta H, Yokogoshi H. Relaxation and immunity enhancement effects of gamma-aminobutyric acid (GABA) administration in humans. Biofactors. 2006;26(3):201-8.doi:10.1002/biof.5520260305