Taking care of dry skin comes down to two things: keeping moisture in and stopping what strips it out. Your skin’s outermost layer acts as a waterproof barrier, held together by a mix of natural fats. When those fats break down or get washed away, water escapes from the skin’s surface, leaving it tight, flaky, and rough. The good news is that a few simple changes to your daily routine can restore that barrier and keep your skin comfortable year-round.
Why Skin Gets Dry in the First Place
Your skin’s outer layer, called the stratum corneum, is built like a brick wall. The “bricks” are flat skin cells, and the “mortar” holding them together is a blend of fats: ceramides (making up about 47% by weight), cholesterol, and fatty acids. When that fatty mortar is intact, very little water escapes through the surface. When it’s depleted, water evaporates freely, and the skin cells above start to curl and flake.
Several things deplete those fats. Hot water dissolves them. Harsh soaps strip them. Cold, dry winter air pulls moisture out faster than your skin can replace it. Indoor heating makes things worse: humidity below about 30% accelerates water loss from the skin’s surface. Even genetics play a role. Some people produce less of a protein that helps skin cells hold onto water, which is why dry skin often runs in families.
How to Wash Without Stripping Your Skin
Hot showers feel great, but they’re one of the biggest culprits behind dry skin. Research published in the Journal of Clinical Medicine found that hot water roughly doubled the rate of water loss from the skin compared to lukewarm water, while also increasing redness and shifting the skin’s pH in an unfavorable direction. Long exposure compounds the damage by swelling skin cells and breaking apart the protective fat layers between them.
Keep showers lukewarm and brief, ideally under 10 minutes. Use a gentle, fragrance-free cleanser rather than traditional bar soap, which tends to be more alkaline and more stripping. You don’t need to lather your entire body every day. Focus cleanser on areas that actually get dirty or sweaty (underarms, groin, feet) and let water do the work everywhere else.
The Three-Minute Moisturizing Window
Timing matters more than most people realize. Dermatologists at the Mayo Clinic recommend applying moisturizer within three minutes of stepping out of the shower or bath. Your skin is still slightly damp at that point, and moisturizer traps that surface water before it evaporates. Pat yourself mostly dry with a towel, then apply your product while your skin still feels a little dewy. Waiting even 10 or 15 minutes means you’ve already lost much of that free moisture.
Choosing the Right Moisturizer
Moisturizers work through three different mechanisms, and the best products combine all three.
- Humectants pull water from the air and from deeper skin layers up to the surface. Common humectants include glycerin, hyaluronic acid, urea, and aloe vera. They hydrate but won’t hold that moisture in place on their own.
- Emollients fill in the tiny gaps and cracks between skin cells, making the surface feel smoother. They also help rebuild the skin’s natural fat barrier. Ingredients like squalane, shea butter, and certain plant oils fall into this category.
- Occlusives form a physical seal on the skin’s surface that prevents water from escaping. Petrolatum (petroleum jelly) is the gold standard. Dimethicone and lanolin also work this way.
If your skin is mildly dry, a lotion with glycerin and a light emollient may be enough. If your skin is cracking or peeling, reach for a thicker cream or ointment that contains petrolatum or dimethicone higher on the ingredient list. Fragrance-free formulas are less likely to irritate already-compromised skin.
Slugging for Severely Dry Skin
Slugging is the practice of applying a thin layer of petrolatum (like Vaseline) as the last step of your nighttime routine. The name comes from the shiny, slug-like finish it leaves. Petrolatum doesn’t actually sink into the skin or add moisture directly. Instead, it sits on the surface like a protective jacket, preventing your skin’s natural moisture from evaporating overnight. This gives the barrier underneath time to repair itself.
You only need a pea-sized amount spread across your face, or a thin layer on particularly dry patches on your body. Slugging works best over a humectant like hyaluronic acid or glycerin, which pulls in water that the petrolatum then locks in place. If you’re prone to acne on your face, try slugging only on dry spots rather than all over, since occlusives can trap oil and bacteria in clogged pores.
Adjust Your Environment
Indoor air during winter often drops below 30% relative humidity, which is the threshold where skin and nasal passages start drying out noticeably. Running a humidifier in your bedroom to keep humidity between 30% and 40% can make a real difference, especially overnight when you’re not reapplying moisturizer. A simple hygrometer (available for a few dollars at most hardware stores) lets you monitor the level.
Wind and cold air also accelerate moisture loss. Covering exposed skin with gloves, scarves, and layered clothing when you’re outside in winter protects the barrier from direct assault. In summer, air conditioning creates its own low-humidity environment, so moisturizing isn’t just a winter concern.
What You Eat Affects Your Skin Barrier
Your skin builds its protective fats from the fatty acids you eat, particularly omega-6 and omega-3 polyunsaturated fats. Linoleic acid, an omega-6 fat abundant in sunflower, safflower, and soybean oils, is directly incorporated into the ceramides that hold your skin barrier together. When dietary linoleic acid is low, the barrier weakens.
Supplementation studies back this up. In one 12-week trial, women with dry, sensitive skin who took about 2 grams daily of either flaxseed oil (rich in omega-3) or borage oil (rich in omega-6) saw significant reductions in water loss, roughness, and scaling compared to a placebo group. A separate trial found that 1.5 grams per day of evening primrose oil improved skin moisture, elasticity, and firmness in healthy adults after 12 weeks. You don’t necessarily need supplements. Fatty fish, walnuts, flaxseeds, and vegetable oils provide these same fats through your regular diet.
When Dry Skin Signals Something Else
Ordinary dry skin feels tight, flakes a bit, and responds well to moisturizer. If your dry patches are intensely itchy, discolored (red on lighter skin, brown, purple, or gray on darker skin), swollen, or producing small fluid-filled bumps or crusting, you may be dealing with atopic dermatitis (eczema) rather than simple dryness. Eczema tends to show up where skin bends: the insides of elbows, behind knees, around the neck.
Scratching eczema makes it worse, causing cracking, scaling, and sometimes oozing of clear fluid. If the area becomes swollen, painful, or starts producing pus, that suggests a secondary infection. Psoriasis, contact dermatitis, and thyroid disorders can also cause persistent dryness that won’t respond to basic moisturizing. Dry skin that doesn’t improve after two to three weeks of consistent care is worth getting evaluated.
A Simple Daily Routine
You don’t need a dozen products. A practical routine for dry skin looks like this: wash with a gentle, fragrance-free cleanser in lukewarm water, pat mostly dry, and apply a cream or ointment-based moisturizer within three minutes. At night, layer a humectant serum under a richer cream, and add a thin coat of petrolatum over the driest areas if needed. During the day, apply a moisturizing sunscreen, since UV damage impairs the skin barrier over time.
Reapply moisturizer to your hands after every wash, since hands lose protective oils faster than almost any other body part. Keep a tube at your desk and by the kitchen sink so it becomes automatic. Consistency matters more than product price. An inexpensive cream with glycerin and petrolatum, applied reliably twice a day, will outperform an expensive serum used sporadically.