The legendary French brand, Biologique Recherche, has long been the pinnacle of exclusivity. Celebrities swear by it, Victoria’s Secret Models slather themselves in it, and their masque vivant is said to stop the aging process entirely. Notoriously tricky to purchase, your best bet is to track down a certified practitioner and book in for what is widely considered the world’s best facial. During a 45–120 minute session, your esthetician will assess your skin’s current condition, using advanced technology to test for things like hydration level and thickness. Their infamous products are then applied in a sequence completely tailored to your needs. Want skin like Emily Ratajkowski, Victoria Beckham or Zoe Kravitz? Stock up on some Biologique Recherche.