Ingredient Research
- Rhim HC et al. The Potential Role of Arginine Supplements on Erectile Dysfunction: A Systematic Review and Meta-Analysis. J Sex Med. 2019.
- Gonzales GF. Ethnobiology and Ethnopharmacology of Lepidium meyenii (Maca). Evid Based Complement Alternat Med. 2012.
- Talbott SM et al. Effect of Tongkat Ali on stress hormones and psychological mood state. J Int Soc Sports Nutr. 2013.
- Borrelli F et al. Effectiveness and safety of ginseng in treating erectile dysfunction. Andrology. 2018.
- Shindel AW et al. Pharmacologic Effects of Icariin. J Sex Med. 2010.
- Prasad AS et al. Zinc status and serum testosterone levels of healthy adults. Nutrition. 1996.
General Health Sources
- National Institutes of Health — Office of Dietary Supplements
- U.S. Food and Drug Administration — Dietary Supplements
- Mayo Clinic — Men's Health
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