Hello all,
I've used Biolyn Scalp Defense Shampoo for half a year now so I think I can finally comment on it.
FWIW, it doesn't make my hair look any worse than it did before. If anything, it seems to add a little body to my hair, making it less "flyaway"-like than before. Which also means that my hair loss becomes less noticeable = Good outcome.
I AM also on daily Propecia though, so I can't claim that this particular Biolyn product is the sole reason my hair now looks better. It could be an interaction or some other reason.
Hope this gives everyone a better idea of Biolyn.