We’ve compared Source Naturals L-Tryptophan with Life Extension Optimized Tryptophan Plus and determined the following. Source Naturals L-Tryptophan takes first place in this analysis and gains 8.2 VSR. Its opponent Life Extension Optimized Tryptophan Plus receives 2 VSR. The gap in rating was affected in the first place by the price, the cost of 1000 mg of L-Tryptophan of Source Naturals L-Tryptophan is $ 0.46 as against $ 0.8 of Life Extension Optimized Tryptophan Plus. The serving of Source Naturals L-Tryptophan contains 1000 mg L-Tryptophan as against 1000 mg of Life Extension Optimized Tryptophan Plus For a serving of Source Naturals L-Tryptophan you will pay $ 0.46 , and a for a serving of Life Extension Optimized Tryptophan Plus you will have to pay $ 0.80.
Source Naturals L-Tryptophan has no taste, the manufacturer produces it unflavored. Life Extension Optimized Tryptophan Plus has no taste, the manufacturer makes it unflavored.
Source Naturals L-Tryptophan is produced in 3 sizes. Life Extension Optimized Tryptophan Plus has just one size, 90 Capsule(s).
We recommend buying Source Naturals L-Tryptophan.