Treating the skin first with chemical peeling agents can reduce the amount of grit needed to get a skin-repair response equivalent to that of a coarser-grit wand, Salomon said.
"So there are a variety of parameters that can be manipulated to achieve equivalent results, independent of the coarseness of the grit," he said. "In the end, you do need to induce an injury to the skin to get objective evidence of skin rejuvenation."
The American Society of Plastic Surgeons has more on dermabrasion.
SOURCES: Darius J. Karimipour, M.D., assistant professor, dermatology, University of Michigan, Ann Arbor, Mich.; Jeffrey Salomon, M.D., assistant clinical professor, plastic surgery, Yale University School of Medicine, New Haven, Conn.; October 2009, Archives of Dermatology