L-Theanine is a supplement that helps foster a calmer, more focused mind without making you drowsy, supporting stress relief and steady concentration for work, study, or busy days. The standout ingredient is l theanine supplement, a non-protein amino acid found in green tea. Source Naturals has built a decades-long reputation for pure, trusted supplements. Together, these elements help you feel calmer and more focused through daily routines.

Available Sizes & Variants:

60 capsules - handy daily dose for ongoing calm and focus

Benefits & Features:

• Promotes a calm, focused mind without sedating you.
• Supports stress relief for busier days with steadier mood.
• Aids attention and working memory in older adults during longer tasks.
• Pairs well with caffeine for enhanced focus without jitters.
• Calibrated formulation uses pure L-theanine with a small stabilising touch of calcium to help maintain the capsule's integrity, while Source Naturals' long standing heritage underpins trusted daily supplementation.

Source Naturals has built a decades long reputation for clean, reliable supplements. L-Theanine crosses the blood brain barrier and research suggests it can reduce stress and anxiety in stressful situations, helping you feel calm without sedation. Dr. Hidese of Osaka University led a meta-analysis supporting these calming benefits, making this a credible choice for everyday balance. Many customers pair it with magnesium glycinate or a vitamin d supplement as part of their daily wellbeing routine.