Billy Jealousy is a men's grooming and haircare brand that was founded in 2004 and has since become a popular choice among men who are looking for effective and innovative haircare products. Billy Jealousy haircare products use high-quality ingredients such as keratin, tea tree oil, and peppermint oil to provide a range of benefits, including increased hair growth, improved scalp health, and enhanced hair texture and volume. One of the unique features of Billy Jealousy haircare products is their "Beard Envy Kit," which includes a beard wash, beard control product, and boar bristle brush. This kit is designed to help men maintain a healthy, well-groomed beard, with products that are specifically formulated to address the unique needs of facial hair.