Solgar L-Theanine Vegetable Caps... vs Doctor's Best Best D-phenylalani...

Works seemingly fine, until it wears off. I'm not sure if the recipe is faulty or what.

I find many supplements do not show results but this one is worth the money.

Multiple sclerosis, sjögren's syndrome and spinal stenosis all cause debilitating chronic daily pain that never stops. Doctors refuse to prescribe narcotics even pain specialists.