A: You can lighten your age spots using products with hydroquinone, a skin-lighting staple. Professional treatments such as laser therapy, freezing, dermabrasion and chemical peels can remove age spots. Here’s more from renowned dermatologist Nelson Lee Novick, M.D., on removal options. Your best prevention is to avoid sun exposure and use sunscreen with SPF 30 or higher on a daily basis. Importantly, age spots are usually harmless, but if spots are dark or have altered in appearance, see a doctor to screen for skin cancer.

A: It’s OK to be thrifty when it comes to your facial cleanser, as long as it’s gentle and doesn’t dry out your skin. Look for a formula specially suited to your skin type. With night cream, however, it pays to spend a little extra. Choose a product that contains beneficial ingredients like retinol, emollients and antioxidants. You can also choose combination products that work double duty, such as a cleanser with exfoliating or toning properties or a high-end moisturizer that can also function as a night cream. Another product that’s worth the splurge is an antioxidant serum, which is “a good way to deliver the concentrated antioxidants…for wrinkle treatment and prevention,” writes dermatologist Leslie Baumann, M.D. in her book, The Skin Type Solution. If you’re looking for more dramatic results, a dermatologist can prescribe a retinoid cream, such as Retin-A.

A: Polyhydroxy acids (PHAs), among the newest alpha hydroxy acids (AHAs) to hit the skincare market, are ideal for sensitive or dry skin types. Since they’re made up of larger molecules than traditional AHAs, PHAs are typically gentler on the skin, causing less stinging, peeling and dryness. They also promote a healthy skin barrier and increase hydration. You can find them in skin treatments, such as face lotions, creams, serums and eye products.