L-Theanine

Thorne L-Theanine delivers 200mg of L-theanine per capsule — the naturally occurring amino acid found in green tea that promotes calm, focused alertness without sedation. L-theanine increases alpha brain wave activity (8–12 Hz), modulates glutamate activity, and supports GABA production to reduce overactive neurological stress responses. Published research demonstrates reductions in physiological and psychological stress markers while maintaining cognitive performance.

Third-party certified, gluten, dairy, and soy-free. Each 90-capsule bottle provides a 90-day supply at one capsule daily or 45 days at the two-capsule dose.

• Promotes calm, focused alertness without drowsiness or sedation
• Increases alpha brain wave activity (8–12 Hz) for relaxed concentration
• Reduces stress markers in both body and mind based on clinical research
• Works synergistically with caffeine to reduce jitteriness while maintaining alertness
• Supports healthy GABA and glutamate balance for nervous system support

L-Theanine, Microcrystalline Cellulose, Hypromellose

At Hewyn, our product selection is guided by a commitment to quality and impact. We collaborate with a trusted network of health professionals who shortlist the latest and most effective items in the wellness space. Each product’s ingredients are rigorously reviewed, ensuring they’re backed by research and offer real health benefits. This process guarantees that every product on Hewyn meets our high standards, delivering only the best for your well-being.