Hi sasquatch, i'm 38, i've been wearing the rop for 2 years solid, every night for bed. I've always had thick facial hair, the facial hair grows quicker, but i've always shaved my face everyday, so don't know. Like i say, it was the body hair, i really had none to very little, but i would say from 4 to 6 month i went from nothing too ape, chest, torso, shoulders, back, everywhere basicaly.
I never got the tingling sensation, so don't go off that, but it was the insomnia, oily skin, and the hair that i knew it was down to this. Mine has never lost it's charge, just make sure it's clean. I know some people rubbish it, but at the end of the day, everything that i experienced can't possibly be coincidence.
The silicone kept sliding off the rods, due to the erections through the night, so after pushing the silicone back on, i rolled it back half a centimeter and super glue'd it, been like that for more than a year. Every morning just give it a rub with a baby wipe. Best regards.