Best L-Theanine Supplement in 2026: Top 5, Tested & Ranked
Best L-Theanine Supplement in 2026: Top 5, Tested & Ranked Updated August 2026 · Evaluated against the dosing used in randomized controlled trials, including Hidese et al. (Nutrients, 2019) and recent sleep systematic reviews. Quick answer: The best L-theanine supplement in 2026 is Now Foods L-Theanine 200 mg, 120 Vcaps — the standard 200 mg…