Swanson Suntheanine L-Theanine, 100mg – 60 vcaps

Suntheanine L-Theanine from Swanson Ultra comes in vegetarian capsules, with each capsule delivering 100mg of Suntheanine — a patented, pure-form L-theanine. L-theanine is an amino acid naturally found in tea leaves, and this product uses the trademarked Suntheanine ingredient, which is produced through a fermentation process designed to yield a consistent, high-purity form. The 60-capsule pack provides 60 individual servings.

Swanson’s Ultra range is positioned as a step up in ingredient quality, often featuring branded or specialist forms of nutrients. The vegetarian capsule format makes this product suitable for those following plant-based diets, and the simple one-capsule serving keeps things straightforward whether taken at a set time each day or as part of a broader supplement routine.

This product appeals to those who are mindful about ingredient sourcing and prefer branded, well-documented forms of amino acids in their supplementation. The unflavoured capsule format is easy to swallow and leaves no aftertaste.