I don't really care about trustable, the only shampoo that reliably deals with my dandruff / itchy scalp is Head & Shoulders. It's a pain in the ass if I don't use it. I'd rather not, honestly - heard lots of, "You don't need it, let it handle itself, just rinse it, whatever…" - yeah, I love looking like it's snowing and scratching all the time.
I don't really care about trustable, the only shampoo that reliably deals with my dandruff / itchy scalp is Head & Shoulders. It's a pain in the ass if I don't use it. I'd rather not, honestly - heard lots of, "You don't need it, let it handle itself, just rinse it, whatever…" - yeah, I love looking like it's snowing and scratching all the time.
Had the same issues when I still had hair to manage. Head & Shoulders was the only one for me as well. Until I just started buzzing my hair.
Now I need a good beard wash or my beard deals with the same thing.