It’s a family failing, my dad used to have a sweaty head, but at least he had a short hair cut, so just had to deal with the rivers of sweat. I’ve just walked the dog, it’s not even that hot and my hair is dripping. I’ve had a short tapered Bob to try and help. It’s not. Makeup, even moisturiser and sunblock is washed off. My body is fine, it’s just my horrible sweaty head. Anyone got any tips?