Hair

Hair is bio-material produced mostly by mammals through the skin follicle. It often serves the function of comfort and protection for various types of mammals.

In traditional Smurfs media, male Smurfs are often born relatively hairless, with a beard and moustache grown around 400 years of age, and additional hair grown around the head in advanced stages of physical maturity. Gutsy Smurf in the 2011 Smurfs movie is the only known case of a young Smurf his age growing facial hair. Female Smurfs, who are most likely created by magic rather than born, are the only Smurfs commonly seen with full head hair. Body hair doesn't appear on Smurfs unless they have been magically altered in their appearance.

In the EMPATH: The Luckiest Smurf story series, one male Smurf called Lord Vladimir Smurfula is shown to have full head hair while most other male Smurfs are generally bald. Papa Smurf grew body hair as a result of his transformation into a muscular, love-crazed grotesquerie from his exposure to an altered form of "pheromone cologone" in the story "Papa's Big Crush". However, after Papa Smurf was purged of his physical desire for Smurfette, the body hair disappeared altogether when his normal appearance was restored.