If your cheeks are dry and flaking now that the weather's turned, and the moisturiser that worked fine in autumn suddenly feels like it's doing nothing, that's not your skin being dramatic. Cold air holds less water vapour, and indoor heating strips out what little humidity is left, so your skin loses water faster than a light, warm-weather moisturiser can put it back. Ceramides and hyaluronic acid, layered the right way, usually close that gap within one to two weeks.
If this sounds like your skin right now
You're doing the same routine that got you through spring and summer, and it's just not keeping up. Cheeks feel rough by mid-afternoon, a few patches near the nose or jaw have started flaking off in tiny bits when you apply makeup, and moisturiser seems to sit on top for a minute before your skin goes back to feeling tight. Nothing about your products changed. The air around you did.
Why this happens
Cold outdoor air simply carries less water vapour than warm air, and once you bring that air indoors and heat it, the relative humidity drops even further. A review of environmental humidity and temperature effects on the skin barrier found that low humidity and low temperature reduce barrier function and leave skin more reactive to everyday irritants, which lines up with why a routine that felt fine in December can start stinging by July in most of Australia.
The mechanism is water loss, not a lack of oil. Your skin holds water in the outer layer using a mix of ceramides, cholesterol, and fatty acids packed between skin cells, plus natural humectants that pull moisture in. When the air outside that layer is dry, water moves out faster than your skin can replace it, a process dermatologists call transepidermal water loss. Heated rooms make the gradient steeper. That's the whole story behind the flaking and the tightness, nothing more complicated than a moisture gradient working against you for a few months a year.
What actually helps
Ceramides replace the lipids your barrier is short on directly, rather than just sitting on the surface. A review of ceramide-containing topical formulations found they measurably reduce water loss and increase hydration in the outer skin layer across a set of controlled studies, which is the mechanism you want in winter specifically. The ceramide barrier guide covers ratios and how to layer them with actives if you're not ready to drop your routine entirely.
Hyaluronic acid pulls water into the surface layer and softens that rough, flaky texture, but it needs a source of water to draw from. In a properly humid bathroom right after a shower, it pulls from the air and your skin surface. In a dry heated bedroom in the middle of winter, there's an honest case that it has less to work with and can pull some of that water from your own skin instead, which is probably why some people find hyaluronic acid alone leaves them feeling tighter in winter than they expected. The fix is simple: apply it to damp skin and seal it with a moisturiser straight after, every time. The hyaluronic acid guide has the full application order.
If you're also unsure whether what you're dealing with is dryness or something else entirely, the dry versus dehydrated skin guide walks through how to tell the difference, since the fix is slightly different depending on which one it is. And if the flaking started when you began a retinoid rather than when the weather turned, that is a different pattern on a different timeline.
Further reading: Ceramides and Your Skin Barrier: What They Do and How to Use Them
A routine that gets you through winter
Mornings: a gentle cleanser (or just water if your skin is already stressed), a hyaluronic acid layer on slightly damp skin, a ceramide moisturiser on top to seal it, then SPF. Evenings: cleanse, hyaluronic acid on damp skin again, then a richer ceramide-forward moisturiser as your last step. A soothing option like the Tenzero Rose PDRN water cream works well in that evening slot, since it layers a ceramide with humectants in one step rather than asking you to stack three separate products. If you're running retinol or exfoliating acids, cut back to two or three nights a week through the coldest stretch and bring the frequency back up once your skin stops feeling tight between applications, usually within a couple of weeks.
FAQ
How do you fix dry, flaky skin in winter?
Simplify the routine, add a hyaluronic acid layer on damp skin, and seal it with a ceramide-rich moisturiser both morning and night. Cut back on exfoliating acids and retinol to two or three nights a week until the flaking settles, which is usually within one to two weeks.
Why is my skin so much drier in winter?
Cold air holds less water vapour than warm air, and indoor heating dries it out further once you bring it inside. Your skin loses water to that drier air faster than a lightweight, warm-weather moisturiser can replace it, so the same routine that worked in summer starts to fall short.
What deficiency causes dry skin in winter?
Usually none. Winter dryness is mostly about the drop in ambient and indoor humidity rather than anything missing from your diet. Diet can play a role in skin comfort generally, but for most people the faster, more reliable fix is a routine that adds ceramides and humectants back into the skin directly rather than waiting on a supplement to show up on your face.
Is hyaluronic acid enough on its own for winter dryness?
On its own, probably not once the air gets genuinely dry. It works best applied to damp skin and sealed with a ceramide moisturiser straight after. Used alone in a dry heated room, it has less moisture in the air to draw from and can leave skin feeling tighter rather than more comfortable.
The short version
Winter dryness comes down to less water in the air and more of it leaving your skin. Layer hyaluronic acid on damp skin, seal it with a ceramide moisturiser, and ease off strong actives until the flaking settles. Most people notice the difference within a week or two of actually sticking to it.
