Verdict: False
God, if only there were such a cheap way of preventing wrinkles!
Vaseline contains 100% petroleum jelly - a deeply moisturising ingredient that forces oils into the skin and prevents them from evaporating. So Vaseline can make wrinkles less apparent - as the moisture it provides softens fine lines - however it just can't prevent skin ageing.
In truth, only skincare products containing active ingredients (such a retinol) can keep wrinkles at bay. So swap the nightly Vaseline face treatment for an effective anti-ageing night cream. I am a big fan of the Philosophy Help Me Retinol Night Treatment 30ml (£38.00 Boots / $47.50 Sephora).