I have extremely oily skin, which I choose to see as a plus: Sure, I spent my 20s fighting stubborn nodulocystic acne, but maybe all that extra oil means I'll age more slowly than my dry-skinned peers. Unfortunately, any anti-ageing effects are probably negated by the grimacing I do when someone insists my skin is oily because I don't moisturise enough. Sorry - "reactive seborrhea" is full-on bull.