Green Tea Extract (50% Caffeine)
Green tea extract, standardized to 50% caffeine, provides a stimulating effect to boost energy and alertness.
What Does Green Tea Extract (50% Caffeine) Do?
Green tea extract standardized to 50% caffeine is a dual-purpose ingredient that delivers a potent energy boost alongside health-promoting polyphenols. Unlike synthetic caffeine anhydrous, this extract provides a more balanced stimulant profile by combining the caffeine kick with naturally occurring catechins like EGCG.
- Enhanced Metabolic Rate: The synergy between caffeine and EGCG (epigallocatechin gallate) has been shown to increase thermogenesis and fat oxidation during and after exercise.
- Sustained Energy Levels: By blocking adenosine receptors in the brain, it reduces perceived exertion and keeps you energized throughout your entire training session.
- Cognitive Clarity: It improves focus, alertness, and reaction time, helping you maintain a sharp mind-muscle connection during complex movements.
- Antioxidant Support: The high polyphenol content helps neutralize free radicals produced during intense physical activity, potentially aiding in cellular health.
Clinical vs. Gym Bro Dosing
| Tier | Dose | Notes |
|---|---|---|
| Beginner | 100-200 mg | Provides 50-100mg of caffeine; ideal for those sensitive to stimulants. |
| Clinical | 400 mg | The recommended dose for significant performance and metabolic benefits. |
| High Performance | 600-800 mg | Delivers 300-400mg of caffeine; for experienced users with high tolerance. |
Key Insight: Always calculate your total caffeine intake based on the standardization. Since this extract is 50% caffeine, a 400mg dose of the extract equals 200mg of actual caffeine. Ensure you aren't doubling up with other heavy stimulants in your pre-workout stack to avoid over-stimulation.
Side Effects & Warnings
- Stimulant Sensitivity: Can cause jitters, increased heart rate, or anxiety, especially in those not accustomed to caffeine.
- Sleep Disruption: Taking this extract late in the evening may interfere with your sleep cycle due to the long half-life of caffeine.
- Gastrointestinal Distress: Some users may experience nausea or stomach cramping if taken on a completely empty stomach.
Tip: If you are stacking this with a fat burner or another pre-workout, check the labels carefully to avoid exceeding a total of 400mg of caffeine from all sources per day.
Top Products Containing Green Tea Extract (50% Caffeine)
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