We’ve compared Allergy Research Group Zen with Natural Factors Suntheanine and determined the following. 2.6 VSR - that’s how many Allergy Research Group Zen earns, so he is the winner, its competitor Natural Factors Suntheanine earns 7.5 VSR. The gap in rating was affected in the first place by the price of L-Theanine, thus 1000 mg of L-Theanine of Allergy Research Group Zen will cost you $ 4.5, as against $ 2.44 of Natural Factors Suntheanine. The serving of Allergy Research Group Zen contains 200 mg L-Theanine as against 250 mg of Natural Factors Suntheanine At the same time, a serving of Allergy Research Group Zen costs $ 0.90, and a serving of Natural Factors Suntheanine costs $ 0.61.
Allergy Research Group Zen has no taste, the manufacturer produces it unflavored. Natural Factors Suntheanine has no taste, the manufacturer makes it unflavored.
Allergy Research Group Zen and Natural Factors Suntheanine have only one size, Allergy Research Group Zen has 120 capsule(s) and Natural Factors Suntheanine has 60 capsule(s), 60 tablet(s).
We recommend buying Natural Factors Suntheanine.