🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 33% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

3 Capsule(s) Serving Size
20 Servings
Other Combinations Product Type
33% Evidence Coverage

Supplement Facts — Evidence Check

Total Carbohydrates
1 Gram(s) (1% DV)
Neumentix Spearmint leaf extract
900 mg
200 mg
📊 Market median: 200.0mg (358 products) 📚 9 studies (Tier A: 0, B: 2)
This product: 200mg

Other Ingredients

plant-derived Capsule Cellulose Magnesium Stearate Silica

Label Claims — Verification

All Other
Structure/Function
All Other (99% of products) Structure/Function (92% of products) Nutrient (22% of products)

Target Groups

Adult (18 - 50 Years) Women (not pregnant or lactating) Gluten Free Dairy Free

Product Information

📋 Directions for Use

Recommendation: Adults take 3 capsules once daily, preferably with food. Do not exceed recommended dose.

⚠️ Warnings & Precautions

Warning: Do not take if you are pregnant or nursing. If you are taking any medications, consult a healthcare professional before use.

Keep out of reach of children.

Safety sealed with inner seal. Do not use if seal is broken or missing.

🧪 Formulation Notes

Brain health formula Peak performance often comes with peak stress. Stay on task with Sustained Focus. This caffeine-free stack includes an amino acid and a botanical to calm your stress and let you concentrate on the task at hand.

We combined clinically studied ingredients Suntheanine L-Theanine and Neumentix Spearmint to provide an approachable solution to help you relax and focus.

Improved focus & concentration Calms your mind & supports the ability to stay on task

Gluten free. No yeast-derived ingredients, wheat, corn, soy, dairy, or artificial colors, flavors, or preservatives.

Additional Information

Keep bottle tightly closed. Store at room temperature. Avoid excessive heat and direct sunlight.

Bottles made from 97% post-consumer recycled plastic

Quality Global Sourcing Bottled & Tested In the USA

Product Details

UPC / SKU 0 33674 13691 1
DSLD Entry Date 2021-04-22
Product Type Other Combinations
Form Capsule
Brand Nature's Way
DSLD ID 246237
Data Updated 2026-04-11

Research Evidence

37 Research Sources
53 Avg Quality Score
22 Rct
10 Systematic Review
3 Meta Analysis
1 Clinical Trial
1 Openfda Safety
B Examining the effect of L-theanine on sleep: a systematic review of dietary supplementation trials
Systematic Review Nutritional neuroscience 2026
B The effects of L-theanine consumption on sleep outcomes: A systematic review and meta-analysis
Meta Analysis Sleep medicine reviews 2025
B The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness
Rct Nutritional neuroscience 2010
B Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial
Rct Nutrients 2019
B The Role of Supplements and Over-the-Counter Products to Improve Sleep in Children: A Systematic Review
Systematic Review International journal of molecular sciences 2023
B Effects of Tea (Camellia sinensis) or its Bioactive Compounds l-Theanine or l-Theanine plus Caffeine on Cognition, Sleep, and Mood in Healthy Participants: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
Meta Analysis Nutrition reviews 2025
B Effect of Alpha-S1-Casein Tryptic Hydrolysate and L-Theanine on Poor Sleep Quality: A Double Blind, Randomized Placebo-Controlled Crossover Trial
Rct Nutrients 2022
B Effect of L-theanine on selective attention in a traffic-related reaction task in sleep-deprived young adults: a double-blind placebo-controlled, crossover study
Rct Nutritional neuroscience 2025
B The combined effects of L-theanine and caffeine on cognitive performance and mood
Rct Nutritional neuroscience 2008
B Acute effects of tea constituents L-theanine, caffeine, and epigallocatechin gallate on cognitive function and mood: a systematic review and meta-analysis
Meta Analysis Nutrition reviews 2014
View all evidence for L Theanine →

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