US$ 21.68
vitamins d aspartic acid l carnitine l arginine L-Arginine | 675 mg L-Arginine supplement for men, Male
Description
Required to synthesize neurotransmitters for proper brain function*

Its numerous benefits include effective fat loss support, improved endurance, and assistance in building lean muscle mass

So there are a lot of negative side effects to it

The total number randomized, and gender distribution were not consistently reported
