Fitting the helmet with a laser hair removal system could also save a lot of time and effort for people who shave their hair off completely.
Shaving takes a lot of time and only gets rid of the hair on the surface, allowing it to grow back much quicker.
Electrolysis is a good option, but it needs to be administered by a dermatologist or certified electrologist, this could become quite an expensive and time-consuming solution.
Prescription creams have been known to cause acne and rashes.
Tweezing or waxing would be extremely painful on the head.
So, the best way to get a completely smooth head would be to use laser hair removal. As this has always been fashionable among balding men and even preferred by some who can grow a complete head of hair, the market for a product like this does exist.