Hair Growth Remedies

Pls if you have tried them pls let me know if they really work to grow your hair, for new growth and to help them from falling out. And how long does it take to see results.

I’m trying to grow my hair out for a wedding, and I want it to grow super fast. If I take Biotin for Hair and Nail Growth twice a day instead of once, will I have funny side effects or will my hair just grow faster?
No rude comments, please. I already know when you take dietary supplements for hair growth, ALL your hair grows faster bahaha
Thanks in advance!!!