After our analysis, we came to the conclusion. Life Extension L-Theanine wins in this comparison and gains 2.6 VSR. Its adversary Natural Factors Suntheanine earns 7.5 VSR. The enormous gap in rating was affected in the first place by the price of L-Theanine, thus 1000 mg of L-Theanine of Life Extension L-Theanine going to cost you $ 3, as against $ 2.44 of Natural Factors Suntheanine. One serving of Life Extension L-Theanine contains 100 mg L-Theanine as against 250 mg of Natural Factors Suntheanine For a serving of Life Extension L-Theanine you will pay $ 0.30 , and a for a serving of Natural Factors Suntheanine you will have to pay $ 0.61.
Life Extension L-Theanine has no taste, the manufacturer makes it unflavored. Natural Factors Suntheanine has no taste, the manufacturer produces it unflavored.
Life Extension L-Theanine and Natural Factors Suntheanine have only one size, Life Extension L-Theanine has 60 capsule(s) and Natural Factors Suntheanine has 60 capsule(s), 60 tablet(s).
We recommend buying Natural Factors Suntheanine.