Topical Dutasteride once a week I don't believe it will works but if you use every other day or 3x week will works.
I saw myself few cases that guys use Dutasteride topical 0.1-0.5% with regrowth but they use EVERYDAY without sides comparable to oral
I bought a bottle of Dutasteride 0.1% from fueclinic Im still waiting for the bottle but I will do test if this works
I will start with 3x week and slowing up to every other day or everyday and comeback and give you guys a update about the gains and sides(I hope not)
But again using just once a week is a lost battle(IMO)