I dont think there is anything that can stop it, however there are shampoos which are supposed to help slow it down. If that makes any sense, nizoral 4% i believe found in canada and euro online. The us version is low in the active ingredient.

In my experience oral winny kills my hair, whats left of it. Inj isnt so bad but I still notice quite a bit of hair loss, with that being said I prefer tren I still lose hair not as much and have better gains.

Good luck to you.