Winter skincare — how to adjust your routine for cold, dry weather.

The skin barrier is not static. It responds to the environment it is in — and cold, dry weather creates specific stresses that a routine built for warmer, more humid conditions does not fully address.

Understanding what winter does to the skin — and what the barrier actually needs — makes the adjustment straightforward. This is not a rebuild of the routine. It is a calibration.

What winter does to the skin

Cold air holds less moisture than warm air. As outdoor temperatures fall, absolute humidity drops — the air contains less water vapour. When dry cold air contacts the skin's surface, transepidermal water loss (TEWL) increases: water evaporates from the skin at a higher rate than the barrier can maintain in ambient conditions.

Indoor heating compounds the problem. Central heating warms air without adding moisture to it. Indoor relative humidity in a heated room through winter routinely falls below 30% — well below the 40–60% range in which the skin barrier functions well. The skin is simultaneously exposed to cold dry outdoor air and warm dry indoor air, both of which accelerate TEWL.

The result is familiar: tightness, flaking, sensitivity, and — if the barrier becomes sufficiently compromised — reactive or inflamed skin that responds poorly to products it tolerated easily in summer.

Cleansing

Oil cleansers are particularly well-suited to winter use. They remove sunscreen, sebum, and environmental debris without altering the pH of the skin's surface or stripping the lipids that constitute the barrier. In warm months, some skin types find oil cleansers heavier than necessary. In winter, the non-stripping cleanse is valuable for almost every skin type.

Foaming cleansers — particularly those that produce a rich lather — typically contain surfactants that lift both debris and barrier lipids from the skin surface. If you use a foaming cleanser, winter is the season to assess whether your skin's tightness post-cleanse has increased. Tightness after washing is a signal of barrier disruption, not clean skin.

Rinse with lukewarm water rather than hot. Hot water dissolves barrier lipids more aggressively than cool water — it feels cleansing because it is, including the lipids you want to keep.

Moisturising

The functional goal of moisturising in winter is the same as in any season: reduce TEWL and support the lipid matrix of the stratum corneum. What changes is the quantity of barrier support the skin needs.

Occlusives — petrolatum, shea butter, lanolin, plant waxes — form a physical layer over the skin surface that slows water evaporation. They are the most effective category at reducing TEWL. A moisturiser that contains occlusives alongside humectants (hyaluronic acid, glycerin) and emollients (squalane, ceramides, fatty acids) addresses the full picture: drawing water to the skin, sealing it in, and supporting the barrier structure itself.

If your current moisturiser is performing adequately in summer but leaving skin tight or flaky in winter, the most direct adjustment is to apply it while the skin is still slightly damp after cleansing — this traps surface moisture before TEWL can remove it. A thin layer of a facial oil over the moisturiser adds an additional occlusive layer without significant weight.

Actives in winter

Chemical exfoliants — AHAs, BHAs, retinoids — are worthwhile actives at any time of year, but winter requires more attentiveness to the barrier's tolerance.

A skin barrier under TEWL stress is more permeable than a healthy barrier. This makes it more responsive to actives and more vulnerable to irritation simultaneously. The same concentration of glycolic acid or retinol that a well-hydrated, intact barrier tolerates easily in summer may cause more visible irritation in winter — not because the formula changed, but because the barrier condition changed.

The adjustment is frequency, not elimination. Reducing exfoliant use to one or two evenings per week rather than three or four — and prioritising barrier support moisturisers on the intervening nights — allows active use to continue without accumulating irritation. Return to higher frequency when the skin's condition restabilises.

Sunscreen continues through winter. UVA intensity is relatively stable year-round, and UV damage is cumulative across all seasons and weather conditions. The association between sunscreen and summer is a category convention, not a protection logic.

A humidifier

If indoor air humidity is consistently below 40% during winter — measurable with an inexpensive hygrometer — a room humidifier addresses the environmental driver that no topical product can fully compensate for. A humidifier in the bedroom raises ambient moisture during sleep, when barrier repair is most active. It is not a skincare product, but it acts on the same outcome: reduced TEWL.

The Lux & Glo ritual in winter

The three-step Lux & Glo ritual — oil cleanse, niacinamide serum, moisturiser — requires no structural change for winter. Oil cleansing is already the most barrier-respectful cleansing approach. Niacinamide supports barrier function directly. The moisturiser step, applied over slightly damp skin with more generous quantity in winter, delivers the occlusive and emollient support the barrier needs.

The ritual is designed to be the routine you do consistently, across conditions. Its architecture — cleanse without stripping, treat without aggression, hydrate and seal — is particularly well-suited to the months when the barrier needs it most.