Hair growth tips

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I chopped all of my hair off to my chin right before my wedding in October. 6 months later I am trying to grow it back and it is barely at my shoulders.

I take a biotin supplement and use “hair growth” shampoo and conditioner.

Does anyone have any methods to make your hair grow faster? My sisters hair grows crazy fast and she swears it’s from bushing it a lot at night.

I’ll try anything!

Thanks! :)