From experience minox 100% thickens hair all over your body because it goes into the bloodstream. On my arms I have those vellous transparent hairs all over that you can't see with the naked eye.
When I was on minox these thickened to look like actual hairs and people were commenting on how hairy my arms were and my friends were calling me monkey arms as a joke. My eyebrows and beard also thickened and I was growing tiny hairs around my eyebrows. This all went away after I stopped it.
Also from experience it does very little to stop hair loss, as although my hair looked a bit thicker when on it, the hair loss continued and I experienced the worst of my hair loss while on it. It was like a 4 foot skinny guy using karate chops only against Anthony Joshua in a fight. Don't believe what you read on shitty hair loss forums unless it's about something tangible like a transplant. Most of those guys are either getting paid commission to promote those products or they are deluding themselves into believing it was helping. Have you ever seen anyone recover from like a NW 2 to a NW 0 with minox? Me neither. If it worked at all surely that would be possible and recorded. I mean millions of people use it ffs.
It also damages the collagen in your skin too. It doesn't cause wrinkles per se but because your collagen levels are diminished while using it your skin will be more susceptible to the things that do cause wrinkles such as sun damage, sleeping position and facial expression. Again I experienced this.
Plus I have hair down there anyway and manscape now and again penis included so don't worry.