We'll be the first to say that it's not cheap to follow a celebrity's skincare routine, but there's a device used by Kylie Jenner that's worth the investment. You may have heard of the Medicube Age-R Booster Pro on social media, as it's gained positive attention for its spot-on results. Better yet, it's majorly discounted for Amazon's Big Spring Sale. "I'm back with my Booster Pro to help snatch my face," Jenner said in a TikTok video. "I really like to start with the Booster Mode to just help absorb all my products." Jenner first prepped her skin with the Medicube PDRN Pink Peptide Serum.