How does Suntheanine® differ from ordinary L-theanine, and does it matter? — Suntheanine L-Theanine 100 mg, N60 - Swanson

L-theanine comes in different forms, and Suntheanine® is one of the best-known branded versions. In this supplement the label names Suntheanine® L-theanine specifically — 100 mg in one vegetable capsule. The brand name means the manufacturer specifies a particular raw material rather than just “L-theanine”.

Other ingredients according to the composition: brown rice flour, hypromellose (vegetable capsule), magnesium stearate. The capsules are vegetable-based; the product card does not call the product vegan, so if you have strict restrictions it is better to check the packaging.

According to the label, adults take 1 vegetable capsule 1–2 times a day with water before a meal; do not exceed the daily dose. If transparency about the composition and origin of the ingredients matters to you, the presence of Suntheanine® on the label is one pointer when choosing.