It worked great for me with no bad effects.
I just used it once a day, ten minutes, for 30 days
and rinsed with water or took a shower.
I've seen a lot of positive posts about it. There seem
to be only a few people posting aggressively and repeatedly
for whom it did not work and made them worse.
Every treatment that I have seen posted on this board
has made someone worse. They are all like that.