After our analysis, we came to the conclusion. 0.6 VSR - this amount Zahler L-Tryptophan receives, so he wins, its competitor Life Extension L-Tryptophan earns 1.8 VSR. The rating was affected in the first place by the price of L-Tryptophan, thus 1000 mg of L-Tryptophan of Zahler L-Tryptophan will cost you $ 0.68, as against $ 0.56 of Life Extension L-Tryptophan. The serving of Zahler L-Tryptophan contains 500 mg L-Tryptophan as against 500 mg of Life Extension L-Tryptophan For a serving of Zahler L-Tryptophan you will pay $ 0.34 , and a for a serving of Life Extension L-Tryptophan you will have to pay $ 0.28.
Zahler L-Tryptophan has no taste, the manufacturer makes it unflavored. Life Extension L-Tryptophan has no taste, the manufacturer produces it unflavored.
Zahler L-Tryptophan and Life Extension L-Tryptophan have only one size, Zahler L-Tryptophan has 60 capsule(s) and Life Extension L-Tryptophan has 90 capsule(s).
We recommend buying Life Extension L-Tryptophan.