Skip to content
NeuroEdge Formula logo featuring a stylized blue neural brain icon beside the NeuroEdge Formula wordmark with the tagline 'Cognitive Enhancement Research.
  • Start Here
  • Nootropics
  • Focus
  • Memory
  • Sleep
  • Brain Health
  • Biohacking
  • About Peter Benson
  • Contact
Free Guide: 7 Days to a Sharper Brain
NeuroEdge Formula logo featuring a stylized blue neural brain icon beside the NeuroEdge Formula wordmark with the tagline 'Cognitive Enhancement Research.
FREE Guide: 7 Days to a Sharper Brain

Home | l-theanine caffeine

  • Cup of coffee beside a clock representing caffeine's effect on cognitive performance and sleep timing
    Nootropics & Supplements

    Caffeine and Cognitive Performance: What It Really Does

    ByPeter Benson July 30, 2026October 19, 2026

    Caffeine reliably sharpens alertness and attention, not memory or reasoning. What the trials show on dose, sleep timing, tolerance and safety.

    Read More Caffeine and Cognitive Performance: What It Really DoesContinue

  • Glass supplement capsules labeled L-Theanine 200mg and Caffeine 100mg beside a brewing teacup and timing protocol notebook on dark surface — L-theanine caffeine stack complete evidence-based guide
    Focus & Productivity

    L-Theanine and Caffeine: What the Trials Show, Dose and Timing

    ByPeter Benson February 20, 2026October 19, 2026

    L-theanine with caffeine gives a small, short-lived lift in attention. Here is what the trials show, who paid for them, and how to dose and test it.

    Read More L-Theanine and Caffeine: What the Trials Show, Dose and TimingContinue

  • A quiet home-office desk with headphones, a handwritten distraction list and no phone in sight
    Focus & Productivity

    Deep Work: The Science of Sustained Focus and How to Protect It

    ByPeter Benson October 4, 2025November 2, 2026

    Deep work is lost to switching, not lack of willpower. What the research says about interruptions, breaks and block length, and how to protect your focus.

    Read More Deep Work: The Science of Sustained Focus and How to Protect ItContinue

  • Nootropic stacking — supplements added in a staged sequence alongside a testing timeline
    Nootropics & Supplements

    Nootropic Stacking Guide — NeuroEdge Formula

    ByPeter Benson August 4, 2025August 1, 2026

    Evidence for ingredients is not evidence for a stack. An honest look at what nootropic combinations are actually tested, why most aren’t, the real safety data — and how to build a stack that teaches you something.

    Read More Nootropic Stacking Guide — NeuroEdge FormulaContinue

Research-backed guidance on nootropics, brain optimization, and mental performance. 18+ years of independent research and real-world testing by cognitive enhancement researcher Peter Benson.

🧠 Free Guide: 7 Days to a Sharper Brain

    🔒 No spam ever. Privacy Policy

    Educational information only. Read full disclaimer

    Explore Topics

    • 🧠 Nootropics & Supplements
    • 🎯 Focus & Productivity
    • 📚 Memory & Learning
    • 😴 Sleep & Recovery
    • 🧬 Brain Health & Longevity
    • ⚡ Biohacking & Protocols

    • Start Here!

    LEARN MORE

    • About Peter Benson
    • Research Methodology
    • Free Guide: 7 Days to a Sharper Brain
    • Newsletter Archive
    • FAQ
    • Contact

    LEGAL

    • Privacy Policy
    • Terms of Use
    • Medical Disclaimer
    • Affiliate Disclosure

    2026-2027 NeuroEdgeFormula.com. All rights reserved. | The information on this site is for educational purposes only and is not intended as medical advice.

    • Start Here
    • Nootropics
    • Focus
    • Memory
    • Sleep
    • Brain Health
    • Biohacking
    • About Peter Benson
    • Contact
    Search