Self-care / Skin · 6 min read · Updated October 2026
Why your skin feels tight when the heating comes on
The first cold week arrives, the heating clicks on, and by evening your forehead and cheeks feel tight. Make-up sits in dry patches, and moisturiser seems to vanish by lunchtime.
Curated by Lisa, founder of By Dejuls
What's drying your skin out
Cold air outside holds little moisture, and heated air inside holds even less. Skin loses water to the air around it, so the driest spots — forehead, cheeks, around the nose — feel it first.
Long hot showers, harsh foaming cleansers and sitting near a radiator or heater make it worse. A small humidifier in the bedroom and lukewarm water at the sink are easy first fixes.
A simple routine that fits a busy week
Use a gentle, non-stripping cleanser, then moisturise while skin is still slightly damp. That one habit does more than any single product.
Skin's outer layer works like a barrier that keeps water in. A richer cream in winter — one with ingredients such as glycerin, ceramides or shea butter — helps that barrier lose less water to dry air.
Add one slower hydration step once or twice a week — on an evening when you have ten quiet minutes. That's where a mask fits in, not as a daily must-have.
Drink water through the day and keep sunscreen in the morning routine even in autumn; daylight still reaches skin on grey days.
Who a collagen film mask may suit — and who should skip it
The By Dejuls film mask comes as pre-shaped forehead and cheek pieces. You place them on clean skin, mist with water, and the film melts in — there's no wet sheet to hold in place or peel off.
It may suit you if: your forehead and cheeks get tight in cold months, you dislike dripping sheet masks, or you want something light for travel bags.
Skip it if: you have a known sensitivity to collagen (often animal- or fish-derived), your skin is broken, sunburnt or irritated, or you're looking to treat a skin condition — that's a job for a dermatologist.
Sizing note: the pieces are pre-cut for forehead and cheeks, so they won't cover the chin or under-eye area. Use your usual moisturiser there.
Is it worth it?
A pack has 10 forehead pieces and 10 pairs of cheek pieces — so 10 sessions. Used weekly, that's about two and a half months of a once-a-week ritual. Divide the price by ten for an honest cost per use and compare it with the single sheet masks you might otherwise buy.
It doesn't replace a good cleanser and moisturiser. It's a comfort step on top of them.
Be realistic about what it does: it hydrates the surface of the skin and can help it feel softer and less tight for a while. Collagen on the skin's surface doesn't rebuild the collagen inside your skin, so it won't permanently firm skin or remove wrinkles.
Safety first
Patch test on your inner arm and wait 24 hours before your first full use. Stop if you notice redness, itching or stinging.
Keep it away from your eyes, and don't use it on broken skin. If dryness cracks, bleeds or won't settle, see a pharmacist or doctor. This guide is general self-care information, not medical advice.
Wellness note: This guide is general, educational information to support everyday routines. It is not medical advice and doesn't replace a doctor, pharmacist or physiotherapist. If you are pregnant, breastfeeding, on medication or have a health condition, check with a healthcare professional first.
Your next step
Ready to try the Mist-Activated Collagen Film Mask, 10 Sets?
A once-a-week hydration step with no sheet to hold in place: place, mist, and let it melt. Ten sets cover the coldest months.