Everyone responds diffrently to different drugs. For some, Winstrol causes massive hairloss. For some people it doesn't.
Your genetic predispostion is what determines what drugs will cause hairloss for you. That being said, generally speaking, the higher androgenic compounds will speed up hairloss in induviduals who are predisposed to MPB.
If you're really worried, stay away from fina and test suspension and stick to more anabolic compounds such as: