ET ON OCTOBER 8, 2025] Another Amazon Prime Day is coming to a close, but there’s a silver lining for anyone who didn’t get their fill of deals. We’re talking major markdowns on award-winning beauty products, viral hair tools, and exclusive skin-care sets that rarely go on sale. Sign up for Dermstore’s Rewards program and score up to 25% off luxury skin-care brands you’d usually only find at a dermatologist’s office.