20 Products You Need to Buy the Day You Turn 30

Why: After a celebrity manicurist warned me that my nails would age if I didn't hydrate them properly, I got serious about my at-home pedicure care. The easy fix is to apply cuticle oil nightly, letting it absorb and work its magic while you sleep. The pro tip is to rub the brush between your fingers to distribute the formula evenly, then massage it into your nail beds to avoid a messy oil spill.

Try: Not only does Deborah Lippmann's lavender cuticle oil ($20) look lovely displayed on your nightstand, but it also contains all the best oils: jojoba, coconut, and mineral. Plus, you can use it on dry elbows, feet, and anywhere with chapped skin.