Is Topical Dutasteride Effective for TRT Hair Loss?

I’ve been reading that dutasteride is more effective than finasteride. (I realize that oral finasteride and I’m assuming oral dutasteride is counter productive while taking trt.).

One guy at the gym has told me that he recommends the topical form while on trt. Is this something I can look into if I’m enjoying trt and really care about my hair?

Thoughts?

It all goes systemic anyways. I have PFS so I would not recommend it, but most people will end up being just fine.