Most of us know the basic tricks to looking youthful by now. We upgraded our sunscreen level to broad spectrum SPF 30 +. We stick to proven de-agers like retinol, AHAs, hyaluronic acid, peptides and antioxidants. We've add subtle layers, long feathery bangs or highlights to our hair. We do yoga and walk and try to eat enough veggies. But then we mess up. Not only are some of our beauty habits wrong, they're aging and unhealthy! Here are the top 10 mistakes to stop making today.