Guarana
This natural source of caffeine and other alkaloids has been shown to improve erectile function in middle-aged men when used in combination with other ingredients found in Alpha Male Plus. Moreover, the caffeine content in guarana has been shown to improve sexual function in men using PDE-5 inhibitors, when used in combination with Citrulline and Resveratrol (which are both found in Alpha Male Plus).
References
S. Nguyen, J. Rajfer, and M. Shaheen, “Safety and efficacy of daily Revactin® in men with erectile dysfunction: A 3-month pilot study,” Transl. Androl. Urol., 2018.
M. Shirai et al., “Oral Testofen, L-Citrulline, Resveratrol, and Caffeine Supplement Drink Improves Sexual Function in Men with Phosphodiesterase 5 Inhibitors: Randomized, Double-Blind, Placebo-Controlled Crossover Pilot Study,” World J. Mens. Health, 2020.
These products are not intended to diagnose, treat, cure or prevent any disease. All information presented here is not meant as a substitute for or alternative to information from health care practitioners. Please consult your health care professional about potential interactions or other possible complications before using any product.