Pre-Workout

Pre-workout supplements: caffeine, beta-alanine, citrulline malate. Transparent analysis of what works, what is hype, and effective doses.

📋Guide·5 min read

Caffeine and L-Theanine: The Evidence Behind the Most Popular Nootropic Stack

Evidence review of the caffeine + L-theanine combination covering synergistic mechanisms, cognitive performance data, optimal ratios, timing strategies, and tolerance management.

Ryan Holt

Mar 2026