How do you grow hair in two months?

The best natural way is actually as simple as brushing your hair. Brushing your hair (even when there are no more knots and snarls) stimulates cells in your scalp and can help your hair grow faster. I don't think shampoos and conditioners help your hair grow out faster, but some shampoos/ conditioners help with split-ends, dry scalp, ect.

I suggest using both:

Dove two-in-one shampoo and conditioner

Dove therapy conditioner

I hope this helps!