Alfatradiol for hair loss, does it work?

I‘m from Germany and I suffer from hairloss. I was prescribed fin around 2 years ago. Recently it got worse and I went to a another dermatologist, since I moved places. He told me that he doesnt recommend taking fin and instead take Alfatradiol (apparently it has the same effect as fin but its topical?). Have you heard of this? The product is called Ell-Cranell. I cant seem to find a lot of studies.

Alfatradiol is a weak estrogen and 5-reductase inhibitor medication which is used topically in the treatment of pattern hair loss (androgenic alopecia or pattern baldness) in men and women. You might be better off with topical finasteride plus minoxidil as these are stronger medications.