Hyaluronic acid isn’t just a hydrating skin plumper, its also a tremendous water-binding lubricant that can help repair damaged hair. “Hyaluronic acid is a sugar, not a protein, and most damaged-hair repair products utilize amino acids and proteins,” explains Spokane, WA dermatologist Wm. Philip Werschler, MD. “When the HA binds water on the hair shaft it’s in essence like keeping your hair wet.”
As more and more hair-care brands embrace the “skinification” of hair, hyaluronic acid continues to be a trending ingredient for bringing compromised strands back to life.