Medically reviewed by Dr. Mary Alice Mina, MD, FAAD, board-certified dermatologist and Mohs surgeon | Last updated: September 28, 2026
Every time the seasons change, I see the same pattern in my office. Patients whose skin stayed calm all summer come in flaking, breaking out or flaring, and almost every one of them blames the cold weather. In this week’s episode of The Skin Real, I walk through the three real reasons why your skin is freaking out, and the fall skincare routine changes I recommend to my own patients.
What Your Skin Needs This Fall
Fall skin flares usually have more to do with dry indoor heat, daily humidity swings and seasonal changes in what we eat than with cold air alone. A good fall skincare routine layers a humectant under a ceramide moisturizer on damp skin, adds a humidifier where you sleep, swaps harsh actives for gentler versions instead of quitting them, and keeps sunscreen in the picture every single day.
Reason 1: Is Indoor Heat Damaging Your Skin Barrier?
In my experience, the heat running inside your home and office does much of the damage. Furnaces and heaters pull humidity out of the air, and your skin barrier loses water along with it. A review of air humidity and the skin linked low indoor humidity with more eczema and dry skin symptoms, though the authors call the research inconclusive in places. Eczema, psoriasis and rosacea often flare now because the barrier is already struggling.
How to layer for hydration
- Apply a humectant such as hyaluronic acid, glycerin or urea while your skin is still damp to draw water in.
- Follow with a ceramide-rich moisturizer to seal that water in.
Reason 2: Why Do Humidity Swings Make Skin Flare?
Skin likes stability. Moving between humid outdoor air and dry indoor air several times a day shocks the barrier, and your skin may even behave differently from one room of the house to another.
My most underrated fix is a simple humidifier in your bedroom, which gives your skin hours of humid air every night. The same review found that a humidifying mist increased the water content of the skin’s outer layer. Try it before buying another expensive serum.
Reason 3: Can Your Diet Affect Your Skin in the Fall?
We don’t fully understand the gut-skin axis yet, and we do know that inflammation in the body, especially the gut, can show up in the skin. In the fall we reach for comfort food heavy in sugar, butter and cream, and fresh produce gets harder to find.
I tell my kids to make their plate colorful, with lean protein, vegetables and fiber. Fiber matters for gut health, and only about 5% of Americans meet fiber recommendations. Diet doesn’t cause every skin condition, and it’s worth a look when topical changes alone aren’t calming a flare.
What Should a Fall Skincare Routine Look Like?
- Cleanser: Trade foaming or AHA/BHA cleansers for a creamy, non-foaming one. If your skin feels tight or squeaky after washing, it’s too harsh, and very dry skin may do well with an oil-based cleanser.
- Vitamin C: L-ascorbic acid can irritate in cold, dry months, so a gentler form like THD ascorbate is a good swap.
- Retinoid: Keep it and adjust it. Lower the strength (for example, tretinoin 0.05% down to 0.025% or an over-the-counter retinol), use it fewer nights, or pair it with moisturizer. Pushing through irritation won’t make your skin glow. I’m moving my own tretinoin to every other night or three nights a week.
- Moisturizer: Look for urea with ceramides. Research on topical urea shows improvements in dryness and scaling, and I love it for flaky legs.
- Sunscreen: Keep it daily, since you’re still driving, walking the dog and running errands in daylight. A creamier formula may feel better now. I’m also excited about bemotrizinol (BEMT), which the FDA added to U.S. sunscreen regulations in June 2026 as the first new sunscreen ingredient in about 20 years.
Frequently Asked Questions
Should I stop using my retinoid in the fall and winter?
Most people don’t need to stop a retinoid when the weather turns cold. I don’t like long breaks from retinoids. If your skin gets dry or irritated, lower the strength, use it fewer nights each week, or apply it with a moisturizer until your skin settles.
Does drinking more water hydrate dry skin?
Drinking water is important for your overall health, but water alone won’t fix dry skin. Topical humectants and moisturizers are what draw water into the skin and keep it there.
Do I need sunscreen in the fall and winter?
Yes, for most people. Daily errands, commutes and walks add up to real sun exposure even on cooler days. The exception is someone living so far north that they get very little daylight.
What kind of humidifier setup helps dry skin the most?
Put a humidifier in the room where you spend the most hours, which for most people is the bedroom at night. That gives your skin a long, steady stretch of humid air while you sleep.
The Bottom Line
Indoor heat, humidity swings and seasonal eating habits all put pressure on your skin this time of year, and small, steady changes to your routine and your home protect it better than any single new product.
Keep Going
In the full episode, I share the specific products I’m reaching for this season and my complete plan for keeping my retinoid going through winter.