by Tessa Roy, University of Michigan Increased fibroblast synthetic activity as early as 1 week post-filler injection. Following injection of vehicle (saline) and filler (cross-linked hyaluronic acid, CL-HA) into photodamaged skin of individuals over 60 years-old, skin samples were obtained in a paired manner at 1, 2, 3 and 4 weeks. Credit: Experimental Dermatology (2024). DOI: 10.1111/exd.14998Chronic exposure of...