Nu Slim Keto Semenax is manufactured in a GMP Certified Pharmaceutical facility (something to look for when shopping for volume products), and its ingredients include the amino acids L-arginine HCL, L-carnitine and L-lysine to increase testosterone and sperm count and motility; herbals epimedium sagittatum, catuaba bark and South American maca to boost libido and potency; and nutritionals to aid testosterone synthesis and prostate Nu Slim Keto. According to Mayo Clinic, the side effects of male sexual enhancement pills may include: Reddening of the face. However, the supplements containing potent ingredients will work positively in male body and will boost its sexual power and energy level too. Ingredients meant to boost testosterone and growth hormone levels will fade out of your system within a few days, but you may not notice the decrease in male sex hormones for a week or more. Aside from that, any other effects from discontinuing a Nu Slim Keto pill will appear more slowly. Q: What happens if you stop taking Nu Slim Keto pills?