🟢 97/100

This product looks safe

  • Folate: 680mg is 680.0× the Tolerable Upper Intake Level (1.0mg)
  • 67% of ingredients have research evidence
C Label Compliance Grade

Product Label

📸

Have a supplement label? Find it here.

Upload a photo of any supplement label to search our database of 92,312 products.

Safety Alerts

⚠️ Folate: 680mg is 680.0× the Tolerable Upper Intake Level (1.0mg)

Label Data

2 Lozenge(s) Serving Size
50 Servings
Other Combinations Product Type
67% Evidence Coverage

Supplement Facts — Evidence Check

Total Carbohydrates
1 Gram(s) (1% DV)
Vitamin C
10 mg (11% DV)
4 mg (333% DV)
📊 3.3× RDA — above typical dose 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 4mg
4 mg (25% DV)
✅ Within RDA (0.3× RDA of 14 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 4mg UL 35mg
10 mg (588% DV)
📊 7.7× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 10mg UL 100mg
680 mcg DFE (170% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 680.0× (UL: 1.0 mg) 📚 225 studies (Tier A: 10, B: 105)
RDA 0.4mg This product: 680mg UL 1.0mg
1000 mcg (41667% DV)
📊 416.7× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 1.0mg
10 mg (200% DV)
✅ 2.0× RDA — within safe limits 📚 1 studies — no high-quality reviews
RDA 5mg This product: 10mg
3.9 mg (1% DV)
📊 Market median: 125.0mg (294 products) 📚 36 studies (Tier A: 1, B: 7)
RDA 550mg This product: 3.9mg UL 3500mg
Gamma-Aminobutyric Acid
50 mg
50 mg
📊 Market median: 200.0mg (358 products) 📚 9 studies (Tier A: 0, B: 2)
This product: 50mg
10 mg
📊 Market median: 550.0mg (217 products) 📚 29 studies (Tier A: 0, B: 5)
This product: 10mg

Other Ingredients

Xylitol Fructose Mango Flavor, Natural Other Natural Flavors Cellulose Stearic Acid Silica Stevia Leaf Extract

Label Claims — Verification

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

Target Groups

Vegan Vegetarian Adult (18 - 50 Years) Dairy Free

Product Information

📋 Directions for Use

2 Daily

Directions: Dissolve 2 lozenges in mouth daily. Use only as directed.

⚠️ Warnings & Precautions

Warning: Do not use if safety seal is broken or missing. Keep your licensed health care practitioner informed when using this product.

Keep out of reach of children.

🧪 Formulation Notes

Relaxation Support

Mango Tangerine Natural Flavor

Vegan

Additional Information

PCR Bottle

Vegan

Seal tightly after each use, and store in a cool dry place.

Product Details

UPC / SKU 0 21245 27691 3
DSLD Entry Date 2024-12-21
Product Type Other Combinations
Form Lozenge
Brand KAL
DSLD ID 322908
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 →