Penatropin is a male enhancement supplement that claims to boost sexual performance, increase libido, and enhance overall sexual health. The supplement is made up of a proprietary blend of natural ingredients including L-Arginine, Maca Root, Tongkat Ali, and Horny Goat Weed, among others. L-Arginine is an amino acid that is known to improve blood flow, which can lead to stronger, longer-lasting erections. Maca Root is a plant extract that is believed to increase libido and improve sexual function, while Tongkat Ali is a traditional herb that has been used to treat erectile dysfunction and increase testosterone levels. Horny Goat Weed is another herb that is believed to improve blood flow and enhance sexual performance.