Dark hair follicles are usually easy to treat because, again, the laser targets the hair's pigment. This is also why gray, white, blonde, and red pigments can be tricky.
Darker tones can also be harder to treat, but not impossible.
"I do have a different laser that can treat darker skin types such as African-American and tan skin," Green says.
The ND:Yag laser is typically best for this. However, it's best to talk to your physician first in order to avoid pigment discoloration.