The Problem: Uneven skin tone, sagging
The Cause: Exposure to sun or pollution and loss of collagen and elastin.

The Remedy: 3LAB Perfect Mask ($120 for six; has proven, effective antioxidants such as green tea and ginkgo biloba, and anti-irritants including licorice root extract. It also contains several cutting-edge ingredients that, when combined with a good daily antiaging skincare regimen, may help treat ruddy tones and fine lines: Nano-Claire GY, the first bioengineered growth-hormone-like material that speeds up cellular turnover; Matrixyl, a peptide that contributes to collagen synthesis; and SymGlucan, a moisturizing oat extract that promotes scar healing and wrinkle reduction.