There is NO cure for hairloss. All the lotions, pills and creams are just ways to eat your money away.
The ONLY thing you can do is find the underlying cause.
If you have thyroid problems, pcos, alopecia etc you can deal with those and sometimes hair comes back a little. But you have to realise that you won't get an afro whatever you do

.
Stop drying your hair with a hairdryer/iron etc. Eat a multivitamin every day. Eat healthily with ballanced fat intake. Use a comp NOT a brush!!!
These things might help the hair you do have look better and stronger, but if your hair follicles have stopped producing they most probably won't start again.
Remember that hats, which do NOT fit tight, do not affect hairloss and are a good solution.