Product analysis
Chewable GABA may help responses to short-term stressful situations, although evidence for lasting everyday relief is limited.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality20
The main ingredient descriptions lack specific form details. That limits close comparisons with preparations used for particular calming or sleep purposes.
Ingredient Transparency63
All listed amounts are disclosed, making serving sizes easier to compare. Ingredient forms remain unspecified in the main descriptions, limiting closer preparation comparisons.
Value For Money36
The GABA comparison offers modest value, while the formula is relatively costly for its theanine content. Value for the remaining ingredients is uncertain.
Customer Satisfaction86
Customer ratings are favorable across a large review pool. The feedback does not establish lasting stress relief or improved mood and sleep.
Product Focus64
GABA provides the main connection to short-term calming, with limited evidence for lasting relief. The small accompanying amounts leave mood and sleep benefits less certain.
- Format
Tablet - Container
- 90 Tablet(s)
- Per serving
- $0.30
- Customer rating
- 4.6 · 4,862 ratings
Goals
GABA may help responses to short-term stressful tasks, but the evidence is limited and does not establish sustained stress relief from supplements. The 500 mg per serving meets the supplied amount comparison. Theanine is present in a much smaller amount than the supplied stress guidance, so it does not add a meaningful contribution to these findings. The serving does not itself establish a repeated daily regimen.
How this product is rated for Stress Relief
Ingredient fit96
Goal fit
Dose adequacy
Pathways60
Depth
Breadth
Evidence91
Evidence strength
Studied preparation
Formulation logic100
Partner coverage
Conflicts
Effective doses
Theanine may ease tension associated with stress, but the 20 mg serving is below the 200 mg amount associated with that effect. GABA is also present, although its role as a calming messenger doesn't tell us whether swallowing it improves everyday mood. The two ingredients therefore leave considerable uncertainty about how much emotional benefit to expect.
How this product is rated for Mood Support
Ingredient fit96
Goal fit
Dose adequacy
Pathways17
Depth
Breadth
Evidence53
Evidence strength
Studied preparation
Formulation logic100
Partner coverage
Conflicts
Effective doses
GABA may offer calming support, but its contribution to sleep is less clear than its presence in the formula might suggest. The theanine and taurine amounts are too small to add a clear sleep role alongside it.
This blend is centered on GABA rather than sleep timing, and the product does not identify a specific GABA preparation tied to the sleep context. Inositol is also listed, but no sleep benefit is established for it here.
How this product is rated for Sleep Support
Ingredient fit82
Goal fit
Dose adequacy
Pathways12
Depth
Breadth
Evidence51
Evidence strength
Studied preparation
Formulation logic100
Partner coverage
Conflicts
Effective doses
No linked studies yet.
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Calories | 15 Calorie(s) | |
Total Carbohydrates | 4 Gram(s) | |
GABA | 500 mg | |
Taurine | 100 mg | |
Inositol | 80 mg | |
L-Theanine | 20 mg |
How this ingredient is rated
Active Ingredient Quality & Bioavailability70
GABA Source & Production Method
Dose, Safety & Label Transparency93
GABA Dosage Adequacy & Transparency
Label Purity & Excipient Quality
Value40
Price per Effective Dose
How this ingredient is rated
Active Ingredient Quality & Bioavailability80
Isomer Specificity (L-Theanine)
Branded Forms & Purity Standards
Dose, Safety & Label Transparency51
Theanine Dosage Efficacy
Label Transparency & Blends
Value20
Price per 100mg L-Theanine
How this ingredient is rated
Active Ingredient Quality & Bioavailability51
Chemical Form and Purity
Sourcing and Branded Ingredients
Formulation Cleanliness
Dose, Safety & Label Transparency54
Taurine Dosage Potency
Dose Disclosure
Quality Assurance and Testing
Value20
Price per Gram of Taurine
Alternative products
Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Oral intake of γ-aminobutyric acid affects mood and activities of central nervous system during stressed condition induced by mental tasks.
- Peripartum neuroactive steroid and γ-aminobutyric acid profiles in women at-risk for postpartum depression.
- The role of neurotransmitters in mediating the relationship between brain alterations and depressive symptoms in patients with inflammatory bowel disease.
- Occipital gamma-aminobutyric acid and glutamate-glutamine alterations in major depressive disorder: An mrs study and meta-analysis.
- Systematic review of gamma-aminobutyric-acid inhibitory deficits across the reproductive life cycle.
- l-theanine adjunct to sertraline for major depressive disorder: A randomized, double-blind, placebo-controlled clinical trial.
- L-theanine relieves positive, activation, and anxiety symptoms in patients with schizophrenia and schizoaffective disorder: an 8-week, randomized, double-blind, placebo-controlled, 2-center study.
- The Effects of Green Tea Amino Acid L-Theanine Consumption on the Ability to Manage Stress and Anxiety Levels: a Systematic Review.
- Comparison of the effects of two amino acids, Gamma-aminobutyric acid (GABA) and L-theanine, on sedation, anxiety, and cognition in preoperative surgical patients - A randomized controlled study.
- Anti-stress effect of theanine on students during pharmacy practice: positive correlation among salivary α-amylase activity, trait anxiety and subjective stress.
- Safety and Efficacy of Gamma-Aminobutyric Acid from Fermented Rice Germ in Patients with Insomnia Symptoms: A Randomized, Double-Blind Trial.
- Analysis of the Effects of Known Sleep-Support Supplements in Relation to Life Habits, Sleep Conditions, and Sleep Problems.
- Reduced γ-aminobutyric acid in occipital and anterior cingulate cortices in primary insomnia: a link to major depressive disorder?
- GABA Supplementation, Increased Heart-Rate Variability, Emotional Response, Sleep Efficiency and Reduced Depression in Sedentary Overweight Women Undergoing Physical Exercise: Placebo-Controlled, Randomized Clinical Trial.
- Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial.
- Comparison Between Efficacy of Oral Melatonin and Oral L-theanine in Improving Sleep in Cancer Patients Suffering From Insomnia: A Randomised Double-blinded Placebo-controlled Study.
- The effects of L-theanine consumption on sleep outcomes: A systematic review and meta-analysis.
- In Search of a Safe Natural Sleep Aid.
- L-theanine in the adjunctive treatment of generalized anxiety disorder: A double-blind, randomised, placebo-controlled trial.
- Relieving occupational fatigue by consumption of a beverage containing γ-amino butyric acid.