Michelle Monaghan has been vigilant about protecting herself from the sun ever since she was diagnosed with skin cancer in her 30s.The Mission: Impossible – Fallout actress discovered a suspicious mole on her leg when she was in her thirties and after it was removed, experts discovered it was a melanoma, one of the most dangerous forms of skin cancer. As a skin cancer survivor, the 44-year-old is much more committed to using products with a high SPF.