Los Angeles, CA — April 2025 — After more than two decades of stagnant innovation in cold sore treatment, MARK Los Angeles is introducing a new solution that blends pharmaceutical science with plant-based bioactives to deliver meaningful results for people living with HSV-1.

The new Lip Rescue Serum and Lip Health Balm are powered by XDF™ (Transdermal Flavosomes), a novel skin delivery technology developed by MARK Los Angeles founde…