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Liposomal L-Theanine

product on market Liquid Natural Rhythm Safety: 100/100
100/100

This product looks safe

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

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Green tea leaf extract provides L-theanine, which is supported by strong evidence for promoting relaxation and cognitive focus. Stevia leaf extract serves as a non-nutritive sweetener with a well-established safety profile. Overall, the active ingredients are backed by moderate to strong research regarding their functional effects.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Liposomal L-Theanine
Open Full PDF View on NIH DSLD →
Details

Label Data

0.6 mL
Serving Size
50
Servings
Botanical
Product Type
33%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Total Carbohydrates
1 Gram(s)
Market median: 260.0mg (249 products) 158 studies (A:4, B:61)
Stevia Leaf Extract
0.6 mg

Other Ingredients

Glycerin Water Oleic Acid Polyglyceride Sunflower Lecithin Fruit Punch flavor Xanthan Gum Potassium Citrate Rosmarinic Acid Mixed Tocopherols
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested use: As a dietary supplement, hold nozzle 1" from mouth, spray three times and swallow. Use once daily or as directed by your healthcare practitioner. Shake well before each use.

Warnings & Precautions

Keep out of reach of children.

Warning: If pregnant or nursing, consult your healthcare practitioner before taking this product.

Formulation Notes

Promotes calm & relaxation Support for a good night's sleep Encourages mental focus and alertness

Vegetarian

Gluten free Soy free Dairy free

Color, flavor and sweetness of this product may vary due to variations of natural ingredients. Restore your natural rhythm

L-Theanine triggers the production of alpha brain waves, which promote deep relaxation and mental alertness - without causing drowsiness.

Additional Information

Store in a cool, dry place. Best if used within 60 days of opening.

Metadata

Product Details

UPC / SKU7 64804 31752 7
DSLD Entry Date2024-10-24
Product TypeBotanical
FormLiquid
DSLD ID317916
Data Updated2026-04-11
Research

Research Evidence

37
Research Sources
53
Avg Quality
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 PubMed DOI
B The effects of L-theanine consumption on sleep outcomes: A systematic review and meta-analysis
Meta Analysis Sleep medicine reviews 2025 PubMed DOI
B The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness
Rct Nutritional neuroscience 2010 PubMed DOI
B Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial
Rct Nutrients 2019 PubMed DOI
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 PubMed DOI
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 PubMed DOI
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 PubMed DOI
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 PubMed DOI
B The combined effects of L-theanine and caffeine on cognitive performance and mood
Rct Nutritional neuroscience 2008 PubMed DOI
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 PubMed DOI
View all evidence for L Theanine →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.