Investigative Reviews
Separating Signal from Noise: A Science-First Look at ADHD Nootropics and the Brands Cashing In
The market for supplements promising to tame ADHD symptoms has exploded into a multi-billion-dollar industry, but how much of the science actually holds up? We reviewed the clinical literature on the most-hyped ingredients — L-theanine, NAC, alpha-GPC, and more — to determine which products earn their shelf space and which are riding a wave of clever marketing. The results are more nuanced, and more sobering, than most brands would like you to know.