In your twenties: Great collagen support keeps your skin supple and gives you a healthy glow. It’s not all sunshine and roses for women in their twenties, though.

Many experience acne, even if it wasn’t an issue for them in their teens, with pimples popping up on the lower face and along the jawline in particular. How you care for your skin in this decade will determine what kind of damage you deal with in your thirties and forties—which is why it’s so important to wear sunscreen year-round.