The science behind the BarbarianXL Male Infertility Treatment is rooted in the understanding of the various factors that can contribute to male infertility. One of the most common causes of male infertility is a decrease in the production of sperm. This can be due to a variety of factors, including age, genetics, lifestyle, and environmental factors. In order to overcome infertility, it is essential to address the underlying causes of sperm production problems.