Is There Anything That Can STOP Hair Growth On The Head?

I started losing my hair at a young age, around 20, and became accustomed to having a shaved head. Instesd of shaving my head every week, and I don't want to be bothered with hair re-growing stuff; I wanted to know if there is anything that can be done out there to stop the hairs from growing?Is There Anything That Can STOP Hair Growth On The Head?
Nair?

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