They also found that some of the supposedly "natural" products have traces of phosphodiesterase-5-inhibitors , the medication found in prescription drugs -- such as Viagra -- used to treat impotence. And there's plenty of debate on whether size matters at all.
https://www.worthydiets.com/alpha-force-prostate/
https://www.worthydiets.com/proflexia-rx-male-enhancement/
https://www.webpressglobal.com/health/alpha-force-prostate-alpha-force-by-new-medical-sciences/