L-Theanine & Caffeine

product on market Softgel Capsule SR Sports Research 🟢 Safety: 100/100
Brand: SR Sports Research
🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • Limited research evidence available for ingredients
B Label Compliance Grade

Product Label

📄 Open Full PDF View on NIH DSLD →
📸

Have a supplement label? Find it here.

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

Label Data

1 Liquid Soft-Gel(s) Serving Size
60 Servings
Other Combinations Product Type
0% Evidence Coverage

Supplement Facts — Evidence Check

Calories
5 Calorie(s)
Total Fat
0.5 Gram(s) (1% DV)
Medium Chain Triglyceride
500 mg
AlphaWave
200 mg
PurCaf
100 mg

Other Ingredients

Rice Bran Wax Sunflower Lecithin Gelatin Glycerin Water, Purified Turmeric

Label Claims — Verification

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

Target Groups

Adult (18 - 50 Years) Gluten Free

Product Information

📋 Directions for Use

Suggested Use: As a dietary supplement, healthy adults take 1 liquid softgel daily with food. Best when taken as directed by a qualified healthcare professional. Not to exceed more than 2 liquid softgels daily.

⚠️ Warnings & Precautions

Contains: Tree nuts (Coconut).

Caution: Keep out of reach of children and pets.

Caution: Keep out of reach of children and pets. Not to be used by individuals sensitive to caffeine.

Consult with a qualified healthcare professional prior to using this product, especially if you are pregnant, nursing, have diagnosed medical conditions, or are taking prescription medications.

Do not exceed recommended daily intake. Do not use if safety seal is damaged or missing.

🧪 Formulation Notes

SR L-Theanine & Caffeine combines AlphaWave L-Theanine & PurCaf Caffeine with Medium Chain Triglycerides (MCTs) from coconuts and supports energy & focus. Made with coconut MCT oil

Keto certified & gluten free

Keto certified & gluten free IGEN non-GMO tested

Manufactured and Quality Tested in USA. Ingredients carefully sourced from around the world.

2-in-1 Formula Made with MCT oil 200mg L-Theanine as AlphaWave 100mg Caffeine as PurCaf

Gluten free IGEN Non-GMO Tested

Additional Information

90 Days Money Back Guarantee

Satisfaction Guarantee We offer a full refund on the purchase price of your order (minus return cost) within 90 days of purchase. Restrictions apply. Please visit sportsresearch.com for full details. Track your lot number, and view third party independent testing. Sportsresearch.com Instagram Facebook Youtube Snapchat Twitter @SportsResearch

This Product is Keto Certified Ketocertified.com Gluten free cGMP Compliant Good Manufacturing Practice 3rd Party Quality tested IGEN Non-GMO Tested

Store at room temperature, in a dry place. Protect product from excessive heat, freezing, humidity and light.

Product Details

UPC / SKU 0 23249 01226 9
DSLD Entry Date 2025-01-23
Product Type Other Combinations
Form Softgel Capsule
Brand SR Sports Research
DSLD ID 326261
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
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 →

Compare Similar Products

Tranquil Sleep Natural Factors Stress-Relax 100
Tranquil Sleep Natural Factors Stress-Relax 100
L-Theanine SmarterVitamins 100
L-Theanine 200 mg SportsResearch 100
L-Theanine 200 mg SR Sports Research 100
View all L Theanine products →
L Theanine research & evidence Best L Theanine rankings All L Theanine products More from SR Sports Research View on NIH DSLD →