L-Theanine with Suntheanine, 150mg – 90 vcaps

Doctor’s Best L-Theanine with Suntheanine delivers 150mg of L-theanine per vegetarian capsule, using the patented Suntheanine form of this amino acid. L-theanine occurs naturally in green tea and is one of the plant’s most recognised compounds. Each of the 90 vcaps in this pack contains 100% Suntheanine, making the source of the ingredient clear and straightforward to verify.

The capsule format is unflavoured and easy to swallow, with no preparation required — simply take with water at a time that suits your schedule. Vegetarian capsules make this suitable for those avoiding animal-derived ingredients, including people following plant-based diets.

Doctor’s Best is a well-regarded US supplement brand with a long-standing focus on science-informed formulations and quality manufacturing standards. This product appeals to those who prefer their supplements in a clean, single-ingredient format, including people with active lifestyles, those managing demanding workdays, and anyone looking to incorporate a green tea–derived amino acid into their daily wellness routine.