This Item is one pack of 50 grams (1.76 oz) L-Theanine pure powder. There is not any additive or filler inside. Assay: >99%. It is fresh and there are 1.5~2.5 years shelf life available.
Characteristic: Appearance, White powder; Taste, Tasty, slightly sweet; Solubility, Soluble in water.
Suggested use: As a pure ingredient, to dissolve in water, juice, drinks, or mix in smoothie, shake; or for formulation, food product, R&D (research and development); or any other proper purpose.
Generally suggested serving size for adults: To take 1/8 teaspoon of the powder (200 mg) 1 to 2 times daily. Or, adjust the use amount as advised by individualís physician. If you want accurate weigh dose amount, an accurate balance (0.01g-100g) is necessary.
Storage: Store in dry place and keep away from strong direct light and heat.
More packs and packing sizes are available, please visit our store. Please contact for bulk quantity order. We do combine shipping, you will save shipping cost.
L-Theanine was discovered as a phytonutrient of green tea in 1949 and was approved in Japan in 1964 for use in all foods, including chocolates, soft drinks, and herb teas, except infant foods. It is sold in the USA as a dietary supplement. As an amino acid, L-theanine is an analog of L-glutamine. L-Theanine can cross the blood-brain barrier, thus resulting mood, cognition, and relieving stress benefits.
Quality Specification: The L-theanine powder was produced according to enterprise quality standard. All actual batch L-theanine powder meets or is better than the quality specification requirements. CAS No.: 3081-61-6.