Comparison

Theanine 100 mg + Green Tea and L-Theanine 100 mg Suntheanine

Theanine 100 mg + Green Tea (Natural Grocers by Vitamin Cottage) lists 2 distinct ingredients and L-Theanine 100 mg Suntheanine (NOW) 2 (rows of one ingredient counted once); 2 are on both labels. On the site's similarity measure, which compares ingredient lists (1 for the same list, rarer ingredients counting for more; amounts are not part of it), the two formulas score 1.00: the same ingredients, at the amounts in the table below.

Amount per serving (and % of the Daily Value)
IngredientTheanine 100 mg + Green TeaL-Theanine 100 mg Suntheanine
Green Tea250 mg250 mg
Theanine100 mg100 mg

Amounts are per serving as DSLD gives them: Theanine 100 mg + Green Tea, 1 vegetarian capsule; L-Theanine 100 mg Suntheanine, 1 veg capsule. Current labels entered September 2022 and August 2014. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own