Video: Body reaction makes tattoo permanent

Tattoos are a form of permanent marking with ink that changes skin pigmentation to beautify, create an impression or other causes.

Tattoo is a form of permanent marking with ink that changes skin pigmentation.

Tattoos in humans are a type of body art while tattooing in animals often to identify and mark as possessions.

We know that human skin peels off about 30,000 to 40,000 cells per hour, which is about 1 million skin cells per day. So why does the tattoo not peel off with the skin?

Because tattoos often last long on the body because tattoo ink penetrates deep into the dermis and is difficult to wash away.