← All Ingredients
Stimulant
Caffeine
Also known as: caffeine anhydrous, guarana, coffee extract
📊
Effective Dosage
100-400mg daily (varies by tolerance)
✓ What the Science Says
Well-proven stimulant. Improves alertness, focus, physical performance.
✗ What It Doesn't Do
Not a long-term cognitive enhancer. Tolerance develops. Doesn't substitute for sleep.
Evidence-Based Benefits
Well-proven stimulant. Improves alertness, focus, physical performance.
Strong EvidenceEffective at: 100-400mg daily (varies by tolerance)
Source: FDA, NIH
Absorption & Bioavailability
Excellent
Red Flags to Watch For
- 🚩 Hidden caffeine in 'proprietary energy blend'
- 🚩 Combined with other stimulants
- 🚩 Over 400mg per serving
Products Containing Caffeine
See how Caffeine is used in these analyzed products:
Research Sources
- FDA, NIH
This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Last updated: 2026-02-04