Kylie Jenner holds hands with her sister Kourtney Kardashian as they leave the Ouai Haircare Launch Event on Thursday (February 4) in West Hollywood, Calif.

The 18-year-old reality star was joined by her sister Khloe, mom Kris and her boyfriend Corey Gamble at the launch of their hairtylist Jen Atkin’s new product line.

Kourtney recently voiced her support for Jen and her new line on her website, writing, “There’s no one I trust more than my mane girl Jen Atkin to get my hair on point!… Jen just launched a brand new hair care line called Ouai and I’m already obsessed. The products are amazing and the packaging is minimal and and chic.”

25+ pictures inside of Kylie Jenner joining her sisters and mom at the Ouai launch event…