I just use a couple of Avene products (cleanser and a daily moisturiser with SPF) and once/twice a week Visapure rotating brush.
My mum always said when I was a teen/young adult to leave well alone (of course I couldn't and didn't - I cringe to think how much money I must've spent over a 15/20 year period) but I'm wondering if there is something in the 'less is more' approach...