Once you hit your 30s, uneven skin tone with broken blood vessels and sun spots start to become more of an issue, along with lines between eyes and crows feet. Not getting carded anymore at bars? This is also the decade when lifestyle habits from your earlier years start to show on your face. Hyperpigmentation, such as melasma, which are brown patches that often occur on the forehead, cheeks, and chin, become a big concern for women in their thirties.