We’ve compared Nutra BioGenesis Stress Factors with Allergy Research Group Zen and determined the following. Nutra BioGenesis Stress Factors wins in this analysis and gains 1.2 VSR. Its competitor Allergy Research Group Zen receives 2.6 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 Nutra BioGenesis Stress Factors will cost you $ 5.7, as against $ 4.5 of Allergy Research Group Zen. One serving of Nutra BioGenesis Stress Factors contains 100 mg L-Theanine as against 200 mg in one Allergy Research Group Zen serving At the same time, a serving of Nutra BioGenesis Stress Factors costs $ 0.57, and a serving of Allergy Research Group Zen costs $ 0.90.
Nutra BioGenesis Stress Factors has no taste, the manufacturer makes it unflavored. Allergy Research Group Zen has no taste, the manufacturer produces it unflavored.
Nutra BioGenesis Stress Factors and Allergy Research Group Zen have only one size, Nutra BioGenesis Stress Factors has 60 capsule(s) and Allergy Research Group Zen has 120 capsule(s).
We recommend buying Allergy Research Group Zen.