🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

1 Capsule(s) Serving Size
100 Servings
Non-Nutrient/Non-Botanical Product Type
100% Evidence Coverage

Supplement Facts — Evidence Check

200 mg
📊 Market median: 180.0mg (239 products) 📚 43 studies (Tier A: 1, B: 19)
This product: 200mg UL 400mg

Other Ingredients

Gelatin Rice Flour Vegetable Stearate Silica

Label Claims — Verification

All Other
Structure/Function
All Other (98% of products) Structure/Function (93% of products) Nutrient (19% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free

Product Information

📋 Directions for Use

For best results: Combine with Nutrakey's l-carnitine 3000 and give your metabolism an extra boost!

Recommended use: For adults, take 1 serving (1 capsule) as a dietary supplement to boost endurance and performance.

⚠️ Warnings & Precautions

Warning: Do not consume more than three (3) servings (600mg) in a 24 hour period. Caffeine can be toxic or lethal in large doses. Please use responsibly.

Warning: Pregnant or lactating women, diabetics, hypoglycemics, and people with known medical conditions and/or taking prescription medications should consult with a licensed physician and/or pharmacist prior to taking dietary supplements.

Do not use if seal is broken. Do not use if package has been tampered with.

🧪 Formulation Notes

Clean energy Clean focus

200mg of caffeine

Clean focus & energy

With as much caffeine as two cups of coffee, Nutrakey's caffeine capsules are a great way to boost focus and energy without the extra sugar, carbs, and calories of energy drinks or coffee. Caffeine has been shown to improve athletic performance in aerobic (especially endurance sports) and anaerobic workouts, as well as increase fat metabolism during exercise.

Increase metabolism The standard for weight loss, caffeine is the main active ingredients in most fat burning supplements. Studies have shown caffeine supplementation increase fat metabolism during exercise.

Weight loss aid

200mg caffeine (anhydrous)

Enhance focus Increase metabolism Boost focus Boost endurance Increase metabolism

Non GMO Gluten free Dye free BPA free Paraben free

Additional Information

Store in a cool, dry place.

Packaging in BPA (bisphenol A) free.

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Product Details

UPC / SKU 6 28586 26244 7
DSLD Entry Date 2023-06-22
Product Type Non-Nutrient/Non-Botanical
Form Capsule
Brand NutraKey
DSLD ID 287386
Data Updated 2026-04-11

Research Evidence

82 Research Sources
51 Avg Quality Score
28 Rct
19 Meta Analysis
17 Clinical Trial
16 Systematic Review
A Preconception lifestyle advice for people with infertility
Meta Analysis The Cochrane database of systematic reviews 2021
B The effects of caffeine intake on weight loss: a systematic review and dos-response meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2019
B Effects of caffeine chewing gum supplementation on exercise performance: A systematic review and meta-analysis
Meta Analysis European journal of sport science 2023
B Genetic susceptibility to caffeine intake and metabolism: a systematic review
Systematic Review Journal of translational medicine 2024
B Pharmacological interventions for sleepiness and sleep disturbances caused by shift work
Meta Analysis The Cochrane database of systematic reviews 2014
B Effects of Caffeine Intake on Endurance Running Performance and Time to Exhaustion: A Systematic Review and Meta-Analysis
Meta Analysis Nutrients 2022
B The effects of green tea extract supplementation on body composition, obesity-related hormones and oxidative stress markers: a grade-assessed systematic review and dose-response meta-analysis of randomised controlled trials
Meta Analysis The British journal of nutrition 2024
B Effect of green tea catechins with or without caffeine on anthropometric measures: a systematic review and meta-analysis
Systematic Review The American journal of clinical nutrition 2010
B Caffeine, CYP1A2 Genotype, and Endurance Performance in Athletes
Rct Medicine and science in sports and exercise 2018
B The combination of L-theanine and caffeine improves cognitive performance and increases subjective alertness
Rct Nutritional neuroscience 2010
View all evidence for Caffeine →

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