For Prevention

Curél Ultra Healing Intensive Moisture Lotion for Extra-Dry Skin ($7 at drugstores) contains petrolatum, glycerin, and shea butter, a natural oil from the nut of the shea tree that prevents water loss from skin.

Vaseline Intensive Rescue Moisture Locking Lotion ($3.60 at drugstores) is a daily moisturizer with glycerin and dimethicone, a silicone derivative that seals in moisture.

Dove Pro-Age Body Cream Oil ($6 at drugstores, beginning in March) packs a triple punch with glycerin, olive oil, and mineral oil.

For Treating Dry Skin

Aveeno Skin Relief Moisturizing Lotion ($7 at drugstores) soothes with oatmeal and shea butter.

Johnson's Nourishing Renewal Lotion ($6.50 at drugstores) replenishes essential oils that diminish in the skin over time and softens with shea butter.

Olay Quench Therapy Body Lotion ($7.50 at drugstores) uses shea butter, olive oil, and palm oil, a natural ingredient that contains vitamins A and E.

For Treating Severe Dryness

Elta Tar ($15, drugstore.com) treats eczema with petrolatum, paraffin, and mineral oil.

Aquaphor Healing Ointment ($6-$8, at drugstores) is a heavy-duty protectant that gives relief to raw, cracked skin.

AmLactin 12% Moisturizing Cream ($13.50, drugstore.com) alleviates rough spots and rehydrates skin with lactic acid.