What Winter Does to Skin
Two environmental changes in winter produce consistent, predictable skin responses:
Low outdoor humidity: Cold air has low moisture content. At 0°C, the maximum moisture air holds is approximately 5 grams per cubic metre. At 25°C, the same air holds up to 23 grams. Walking outside in winter exposes the skin to air that draws moisture from the skin surface rather than providing it.
Low indoor humidity from central heating: Central heating warms indoor air without adding moisture. A centrally heated room in winter typically has a relative humidity of 20% to 30%, below the 40% to 60% range considered comfortable for skin. This desiccating indoor environment affects skin continuously during the hours spent inside.
The combined effect: Dehydration (loss of water from the skin) occurs faster in winter. Skin that was balanced or slightly oily in summer appears drier, tighter and more sensitive in winter. These changes are not skin type changes; they are environmentally induced dehydration.
The Five Adjustments for Winter
Adjustment 1: Switch to a Cream Cleanser or Cleansing Milk
Foaming and gel cleansers remove sebum and surface oil effectively; in winter, this creates a temporary period after cleansing where the skin is stripped of its natural oil protection and particularly vulnerable to moisture loss.
Cream cleansers and cleansing milks remove surface impurities without disturbing the barrier lipids. They are appropriate for normal, dry and sensitive skin in winter. Oily skin types in winter can use a gentler version of their usual gel rather than switching to a cream.
The rule: If your face feels tight immediately after cleansing in winter, your cleanser is stripping the barrier too aggressively for the season.
Adjustment 2: Add a Hyaluronic Acid Serum Immediately After Cleansing
Hyaluronic acid attracts water from the environment and from the deeper skin layers. In summer humidity, it draws moisture from the air. In winter's low humidity, it works more effectively if applied immediately after cleansing when the skin still retains some surface moisture from the rinse.
Apply HA serum to slightly damp skin (not dripping wet, just not fully dry) and follow immediately with moisturiser to seal in the moisture before it evaporates.
Adjustment 3: Switch to a Richer Moisturiser
The same lightweight gel moisturiser appropriate for summer provides insufficient barrier protection in winter.
What a winter moisturiser needs: Ceramides, fatty acids and cholesterol together (to repair and support the barrier), an occlusive ingredient (petrolatum, shea butter, or beeswax) to slow transepidermal water loss and an emollient to soften the skin surface.
The switch trigger: If you apply your current moisturiser and feel tight within 2 to 3 hours, the formula is not occlusive enough for winter conditions. Switch to a thicker cream.
Describe your skin's behaviour in winter (increased tightness, flaking, redness, dullness) and your current products. The Skin Analyzer identifies where your current routine falls short in cold weather and recommends the specific product category changes for your skin type.
Get My Winter Skin RoutineCheck Winter Product IngredientsAdjustment 4: Protect Skin Physically
Wind and cold air accelerate moisture loss through evaporation and physical abrasion of the skin surface. Covering exposed skin in cold weather is not just about warmth; it reduces the environmental moisture-stripping effect.
Physical protection tools: Scarves covering the lower face in wind, SPF in the morning applied before going out (UV reflects off snow and increases winter UV exposure significantly in snowy conditions), and avoiding prolonged exposure of the face to cold wind without moisturiser in place.
SPF in winter: UV does not disappear in winter. Overcast skies filter visible light but only partially reduce UV radiation. Snow reflects up to 80% of UV radiation, significantly increasing winter exposure for people in snowy environments. Apply SPF 30 to 50 every morning year-round.
Adjustment 5: Add Occlusives as the Final Step at Night
An occlusive product applied as the final step in the evening routine seals moisture into the skin overnight and prevents the dehydration that occurs during sleep (particularly in dry, heated bedrooms).
Effective occlusives for the final step:
- Petrolatum (Vaseline, Aquaphor): The most effective occlusive; a thin layer is sufficient
- Squalane: A lighter option; squalane is partially absorbed and provides some emollient benefit alongside occlusion
- Shea butter: A good choice for those who find petrolatum too heavy; also partially absorbed
The "slugging" technique: Applying a thin layer of petrolatum over the entire moisturised face as the final overnight step produces the most intense barrier protection. This is appropriate for very dry or compromised skin; people with oily or acne-prone skin should apply petrolatum only to the driest areas (cheeks, around the mouth) rather than the entire face.
Winter Skin Problem Troubleshooting
Increased sensitivity and redness: The compromised winter barrier allows irritants to reach deeper skin layers. Reduce active ingredients temporarily (retinoids to every third night, AHAs to once per week) and focus on barrier repair until sensitivity resolves.
Flaking despite moisturiser application: Flaking on heavily moisturised skin indicates that the moisturiser is occluding dead cells that have not been removed by exfoliation. A gentle lactic acid exfoliant (5%) used once per week during winter removes the dry flakes and allows the moisturiser to reach living skin cells beneath.
Lips cracking despite lip balm: Lip balm with petrolatum or beeswax seals moisture; lip balm with menthol, camphor or flavouring can worsen dryness. Swap to an unflavoured, petrolatum-based balm and apply before sleep as an overnight treatment.