Physiology Sponsored by
Researchers in Germany used the device to determine collagen and elastin levels beneath the skin's surface. Collagen and elastin are the proteins responsible for the elasticity, tone, and texture of skin, and levels typically decline with age.
There is no good way to assess skin, as measured by collagen and elastin composition, short of removing skin and analyzing it in a lab.
The laser procedure shows promise for making the process a whole lot simpler. That could one day help consumers better evaluate the effectiveness of the antiaging skin products they buy, researcher Martin Johannes Koehler, of Germany's Schiller University, tells WebMD.
"Some cosmetics are thought to change the content of collagen to the skin, but until now to measure that you had to cut out a piece of skin," he says.