Tenacity

Tenacity
Puritan's Pride Tenacity-60 Capsules 

Features L-Arginine, an amino acid that can serve as an energy precursor and support the effects of exercise

Arginine helps maintain coronary blood flow and vascular health, and is involved in immune function Also contains Yohimbe, which helps to stimulate metabolism, and in turn supports energy levels

Rapid release capsules disperse quickly into your system