Humid or Dry, North or South: How to Match Your Skincare to Your Climate
One of the best parts of writing for readers around the world is seeing the same question asked in very different weather: "Why does this moisturiser feel too heavy?" from Singapore, and "Why does it disappear in an hour?" from Denver. The answer is that skin responds to climate, and a great routine (or formula) responds with it.
What climate does to skin
Dry and cold air is tough on the skin barrier. A major review found that low humidity and low temperatures weaken barrier function, make skin more reactive to irritants and allergens, and raise the risk of eczema flares (Engebretsen et al., JEADV, 2016). Research on Danish adults also found lower levels of skin's natural moisturising factor in winter than in summer (Dermatology Times).
Hot and humid weather flips the problem. A Korean study found that summer is the season of highest facial sebum output (Youn et al., Skin Research and Technology, 2005). Add sweat, and heavy creams start to feel sticky and shiny.
Consumer preferences follow the weather too. Trade coverage of Asian markets notes that shoppers in humid Southeast Asia prefer fast-absorbing gels, while those in drier four-season markets like richer creams (a point made by an ingredient supplier) (CosmeticsDesign-Asia).
Don't forget the hemispheres
"Winter skincare" in November means very different things depending on where you are. In Australia, for example, winter runs June to August (Weatherzone). If you sell globally, time seasonal launches and emails by hemisphere, not just by calendar month.
Humid and hot: what to change
- Textures: gel-creams and gels built on Sodium Carbomer, Hydroxyethylcellulose or Xanthan Gum.
- Lighter oil phase: fast-spreading emollients like Coco-Caprylate or Squalane, at lower levels.
- Humectants over occlusives: Glycerin (at moderate levels so it isn't sticky), Sodium PCA and our hyaluronic acid favourites.
- Shine control: Niacinamide, Zinc PCA and oil-absorbing powders like Silica Microspheres.
- Preservation: heat and humidity are tough on products as well as skin. Make sure your preservative system is robust and challenge-tested.
Dry and cold: what to change
- Richer creams: raise the oil phase and add butters like Shea Butter.
- Barrier lipids: Ceramide Complex with cholesterol and fatty acids (see Ceramides 101).
- Occlusives on top: a little Petrolatum or a balm on very dry areas.
- Gentler routines: fewer exfoliants and milder cleansers. Our winter switch guide walks through it step by step.
Dry and hot (deserts and high altitude)
The trickiest combination: intense sun, low humidity and big day-to-night temperature swings. Think light textures by day, with humectants sealed in by a thin emollient layer, richer care at night, and very diligent sun protection.
Air conditioning and central heating: the indoor climate
Many of us spend most of the day indoors, where air conditioning and heating both dry the air. That's why someone in a tropical city can still have tight, dry skin by the end of a workday. A small humidifier and a slightly richer night cream often help.
For brands: one formula, many climates
- Offer a light and a rich version of hero products, rather than one compromise.
- Test stability at both heat (40–45 °C) and freeze-thaw. Your product may cross both on its way to customers (see our stability testing guide).
- Check that waxy products (balms, sticks, lip care) won't melt in a hot delivery van.
Explore Hydration & Moisture, Oil Control & Mattifying and Barrier Repair.