June 1, 2013
That tattoo on your arm of a former flame—the one that seemed like a great idea years ago—is kind of embarrassing today. And your spouse is not too crazy about it either.
You may not know that FDA considers the inks used in tattoos to be cosmetics, and the agency takes action to protect consumers when safety issues arise related to the inks.
At the other end of the tattoo process, FDA also regulates laser devices used to remove tattoos.
FDA has cleared for marketing several types of lasers as light-based, prescription devices for tattoo lightening or removal. A Massachusetts company recently received FDA clearance to market its laser workstation for the removal of tattoos and benign skin lesions.
According to a poll conducted in January 2012 by pollster Harris Interactive, 1 in 8 (14%) of the 21% of American adults who have tattoos regret getting one. And the American Society for Dermatologic Surgery (ASDS) reports that in 2011, its doctors performed nearly 100,000 tattoo removal procedures, up from the 86,000 performed in 2010.
Unfortunately, removing a tattoo is not as simple as changing your mind.
Artists create tattoos by using an electrically powered machine that moves a needle up and down to inject ink into the skin, penetrating the epidermis, or outer layer, and depositing a drop of ink into the dermis, the second layer. The cells of the dermis are more stable compared with those of the epidermis, so the ink will mostly stay in place for a person’s lifetime. Tattoos are meant to be permanent.
An effective and safe way to remove tattoos is through laser surgery, performed by a dermatologist who specializes in tattoo removal, says FDA’s Mehmet Kosoglu, Ph.D., who reviews applications for marketing clearances of laser-devices.
With laser removal, pulses of high-intensity laser energy pass through the epidermis and are selectively absorbed by the tattoo pigment. The laser breaks the pigment into smaller particles, which may be metabolized or excreted by the body, or transported to and stored in lymph nodes or other tissues, Kosoglu explains.
The type of laser used to remove a tattoo depends on the tattoo’s pigment colors, he adds. Because every color of ink absorbs different wavelengths of light, multi-colored tattoos may require the use of multiple lasers. Lighter colors such as green, red, and yellow are the hardest colors to remove, while blue and black are the easiest.