According to Want China Times, the North Korean government has released a range of 28 approved hairstyles for citizens, which it regards as “the most comfortable” and presumably most resistant to the corrupting effects of capitalism.
The list of 18 acceptable female hairstyles show North Korean women are given more choice in their coiffeur after they wed. Approved styles for single women are simple but married women are permitted to indulge in a few extra stylistic flourishes. This also has the useful effect of establishing whether a woman is married or not at a glance. If you like it, then you should have put some curlers in it, to paraphrase Beyonce.
Men are somewhat more restricted, with only ten styles to choose from and a longer list of rules to follow. The hair of the country’s young men should be less than 5 cm long and they should have a haircut once every 15 days as longer hair apparently takes away nutrition from their brains.