I understand nothing is concrete science wise with topical DHT blocking. For those that don't take finesteride, this is a pretty big obstacle in the hair loss battle. Nizoral has shown some promise. I've been looking at rosemary oil more and more now. Anyone have much experience with it? The results from the study suggest it was better than minoxidil after 6 months! I can't seem to find how it was applied and in what dose. Does anyone have the details? Any other DHT topical blockers people can share their experiences with?