The Winter Sun: Why UV Ages Skin Even in Cold Weather, and How to Protect It in the City and on the Slopes
"When the temperature drops, most of us put sunscreen away with the summer clothes. It feels logical: no heat, no harm. But the rays that age skin don't follow the thermometer, and in the mountains winter sun can be harsher on your face than a beach in July. I live in Innsbruck and spend winter weekends above 1,500 metres, so this is the sun-care routine I've settled on for both the city and the slopes."
The short answer: do you need sunscreen in winter?
Yes. UVB, the burning rays, drops in winter, but UVA, the rays most linked to photoageing and dark spots, varies far less with the seasons and passes through cloud and window glass. In the mountains, UV is stronger again: according to the World Health Organization, UV levels rise by around 10% with every 1,000 metres of altitude, and fresh snow can reflect up to 80% of UV back at your face. A daily SPF in the city and a stronger, reapplied SPF on the slopes is the winter routine that protects skin.
UVA all year
The ageing rays stay present through autumn and winter and pass through clouds and glass. They don't burn, so you don't notice them.
Altitude
Thinner air filters less UV. A day at 2,000 metres means noticeably more UV than the same day in the valley.
Snow reflection
Snow bounces UV upwards onto the chin, under the nose and around the eyes, areas sunscreen often misses.
Want to understand what makes Korean sunscreen different in the first place? Read why Korean sunscreen feels so different, or browse every SPF we stock in Sun Care.
"It's grey and freezing. Do I really need sunscreen to walk to the office?"
Winter Sunscreen for the City: Beauty of Joseon Relief Sun vs Tocobo Bio Watery Sun Cream
In the city, winter sun care is about a sunscreen comfortable enough to wear every day under heating-dried skin and makeup. Choose by how dry your skin gets in the cold.
Beauty of Joseon Relief Sun: Rice + Probiotics SPF50+ PA++++ (50ml)
SPF50+ PA++++ in a base of rice extract and a grain probiotic complex that hydrates as it protects. In winter it doubles as a light moisturizer on normal skin and sits comfortably over a richer cream on dry skin, with no white cast and a soft, healthy glow. Fragrance-free, vegan, dermatologically-tested, pregnancy-friendly and made with clean ingredients.
Best for: dry, normal and sensitive skin; heated offices; daily wear under makeup.Less suited to: very oily skin wanting a matte finish.
Editor’s tip: On very dry winter days, apply your moisturizer first, wait two minutes, then the sunscreen.
Shop The Relief Sun
Tocobo Bio Watery Sun Cream SPF50+ PA++++ (50ml)
This one feels closer to a hydrating essence than a sunscreen, with hyaluronic acid and mung bean extract in the formula. It absorbs almost instantly, leaves no white cast and layers cleanly under foundation, which makes it easy to wear every single morning. Alcohol-free, vegan and pregnancy-friendly.
Best for: combination, oily, normal and sensitive skin; under makeup; anyone who dislikes the feel of sunscreen.Less suited to: very dry skin in deep winter on its own; layer a moisturizer underneath.
Editor’s tip: Because it's so light, measure two full finger-lengths for face and neck so you get the protection on the label.
Shop The Bio Watery Sun Cream"On the slopes I put sunscreen on at breakfast and never think about it again."
Winter Sunscreen for the Slopes: Tocobo Cica Cooling Sun Stick vs Beauty of Joseon Matte Sun Stick
At altitude, reapplying every two hours matters more than which sunscreen you started with. A stick is the practical answer: it fits in a jacket pocket, goes on without wet hands and reaches the nose, cheekbones and ears that burn first.
Tocobo Cica Cooling Sun Stick SPF50+ PA++++ (18g)
A fermented cica complex soothes skin that is already red from wind and cold, and the stick glides on clear with a light cooling feel. It's my pocket sunscreen for every ski day: nose, cheekbones, forehead and ears every two hours, over whatever I applied in the morning. Fragrance-free, alcohol-free, vegan and pregnancy-friendly.
Best for: oily, combination and sensitive skin; reapplication outdoors; redness from wind and cold.Less suited to: covering the whole face as your only morning sunscreen; use a cream first.
Editor’s tip: Go over each area three or four times. Sticks deliver less product per swipe than you'd think.
Shop The Cica Sun Stick
Beauty of Joseon Matte Sun Stick: Mugwort + Camelia (18g)
Silica powder absorbs oil and sweat, so this stick leaves a smooth, matte finish rather than shine, with mugwort and camellia extracts in the formula. It is the better choice if you're reapplying over makeup or your T-zone gets shiny after a few runs. Fragrance-free, alcohol-free, vegan, dermatologically-tested and pregnancy-friendly.
Best for: oily, combination and sensitive skin; reapplying over makeup; sweaty, active days.Less suited to: very dry, flaky winter skin, where a matte finish can emphasise texture.
Editor’s tip: Warm the stick in your hand for a few seconds in very cold air; it glides on more evenly.
Shop The Matte Sun StickThe winter sun-care routine, city and mountains
Same principle, different intensity. Protect every morning in the city; protect, reapply and cover the forgotten spots in the mountains.
City mornings
Moisturizer, then a full layer of SPF50 as the last skincare step. One application covers a normal office day.
Mountain days
SPF50+ on face, ears, neck and under the chin before you leave, then a stick every two hours and after sweating.
Evenings
Double cleanse to remove water-resistant SPF, then a calming, barrier-repairing routine. Our après-ski ritual covers the steps.
Your Winter Sunscreen Questions, Answered
Cloudy days, windows, makeup with SPF and when you can skip it.
Do I need sunscreen on cloudy winter days?
Yes. A large share of UV, especially UVA, passes through cloud. The UV index is lower in winter at low altitude, but the cumulative daily exposure is what drives photoageing and dark spots over time.
Do I need sunscreen indoors or by a window?
UVA passes through ordinary window glass. If you sit near a large window for much of the day, a morning application is worthwhile. In a room without direct daylight, it matters far less.
Is foundation or BB cream with SPF enough in winter?
Usually not. Makeup is applied far more thinly than sunscreen, so it delivers only a fraction of the SPF on the label. Use a dedicated sunscreen as your last skincare step, then makeup on top.
When is it fine to skip sunscreen?
After sunset, when there is no UV at all, and on days you spend entirely indoors away from windows. Any time you're outside in daylight, including short winter walks, sunscreen is worth it.
Why does my skin burn more when skiing than at the beach?
Two reasons combine: UV is stronger at altitude, and snow reflects a large share of it back up at your face. Cold air also hides the warning sign of heat on your skin, so you notice the burn only later.
Protect your skin all winter
Creams for the city, sticks for the slopes. 100% authentic Korean sun care, sourced through official brand channels and authorized distributors, delivered from our hubs in Switzerland and the EU to your door anywhere in Europe.
Shop Korean Sun Care
Leave a comment