Have any of you used DHT Blockers?

As a dietitian, I'm always exploring the latest supplements and their benefits. I've recently come across DHT Blockers and I'm curious to hear your experiences with them. Have any of you used DHT Blockers? What results have you noticed, especially in terms of hair health and overall well-being? Your insights would be greatly appreciated! http://www.amazon.com/Hair-Supplement-Blocker-Biotin-Women/dp/B0B7SF2QJG