Best topical for fighting hair loss in 2020?

[Fantaz]

I just had a hair transplant (+PRP/Acell) treatment done exactly 3 weeks ago, and put on shampoo except I did not get the recommended topical and vitamins that I was supposed to buy from the clinic. Here's what they wanted me to get:

http://www.curegen.com.tr/urunler/cu...l-spray-60-ml/
(spray 1 per day, with optional derma needling)

http://www.curegen.com.tr/sac-urunle...en-capsule-30/
(take 2 per day)

Also, they gave me free this shampoo and instructed me to use it daily, except that I only take showers every 2nd day...
http://www.curegen.com.tr/urunler/cu...hampoo-300-ml/

Both the shampoo and topical is Procapil based. Should I start on Minox, or is there better ones out there? I keep seeing ads on FB/IG for the Spectral DNC-N, is that good? Or should I look for a Procapil based one online somewhere? The Esteworld hospital where I'd order it from is closed until end of April due to corona, so I have to source it somewhere else if I decide on that.

Or what's the best alternative to fight hair loss? But honestly, I used to take Minox a decade ago and I think it only slowed down my hair loss and a really made peach fuzz instead of growing real hairs, besides staining my pillows. It might fare differently on my transplanted hairs if I started it again....