topical finasteride

I think I'm going to give this a try: Hair Restore Ultra Scalp Solution - 60 mL Dropper Bottle of Minoxidil / Azelaic Acid / Finasteride / Ketoconazole 5/12.5/0.1/2% I'd like to get the finasteride component down to .05 or .025..... What is a good vehicle to mix with this... I was thinking of...

Currently, only topical minoxidil (MNX) and oral finasteride (FNS) are approved by the Food and Drug Administration (FDA) and the European Medicines Agency (EMA) for the treatment of androgenetic alopecia. Although FNS is efficacious for hair regrowth, its systemic use is associated with side...