13 Beauty Products You Absolutely Must Buy in November

Vitamin C is your BFF when it comes to helping with a hangover. Drink the juice to feel revived (adding some Champagne is up to your discretion), and then use it in your skin care to brighten up dullness caused by alcohol and lack of sleep. Kiehl's Powerful-Strength Line-Reducing Eye-Brightening Concentrate ($44) is the perfect base layer for a heavier eye cream or concealer. It contains 10.5 percent pure vitamin C and an ingredient called haloxyl to soothe skin and eliminate dark circles. The texture is velvety, and the container is small enough to keep in your purse for dire situations.

— LL