After our analysis, we came to the conclusion. Doctor's Best Suntheanine L-Theanine takes first place in this battle and earns 5.8 VSR. Its adversary Source Naturals L-Theanine 200 receives 5 VSR. The rating was affected in the first place by the price, the cost of 1000 mg of L-Theanine of Doctor's Best Suntheanine L-Theanine is $ 1.27 as against $ 2 of Source Naturals L-Theanine 200. One serving of Doctor's Best Suntheanine L-Theanine contains 150 mg L-Theanine as against 200 mg in one Source Naturals L-Theanine 200 serving For a serving of Doctor's Best Suntheanine L-Theanine you will pay $ 0.19 , and a for a serving of Source Naturals L-Theanine 200 you will have to pay $ 0.40.
Doctor's Best Suntheanine L-Theanine has no taste, the manufacturer makes it unflavored. Source Naturals L-Theanine 200 has no taste, the manufacturer makes it unflavored.
Doctor's Best Suntheanine L-Theanine and Source Naturals L-Theanine 200 have only one size, Doctor's Best Suntheanine L-Theanine has 90 capsule(s) and Source Naturals L-Theanine 200 has 60 capsule(s), 60 tablet(s).
We recommend buying Doctor's Best Suntheanine L-Theanine.