The Biggest 2024 Beauty Trends for a Head-to-Toe Glow Up

If you follow Hailey Bieber’s line Rhode closely—or really, any skincare brand—you’ve likely been hearing more and more about peptides. “Peptides are amino acids that make up certain proteins that are critical for making skin function at its best,” explains Robinson. “There are many different types of peptides used in skincare, from those that act as messengers to signal your cells to stimulate collagen and elastin to neuropeptides, which are peptides that signal your facial muscles to relax so as to smooth out wrinkles.”

Robinson is particularly intrigued by the latter: “Though neuropeptides are not new, I’m seeing some big innovations in these peptides that may deliver more significant results than the current neuropeptides on the market. So effective, they might truly be Botox-alternatives,” says the cosmetic chemist.