Is there any way to stop the hair from turning white?

Is there any way to stop the hair from turning white?

I'm still at the beginning of my 20s and I started to have some white hair which annoys me because I think it's too early and I feel like by the age of 30 I'm gonna have a bunch of white hair. Also my hairdresser said that I'm too young to have all these white hair. Is there any way to stop the rest of my hair from turning white?

Is there any way to stop the hair from turning white?
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