Hot Weather Beauty: Caring for Skin, Make-Up and Nails in a Heatwave | Mavala UK

Heat asks more of your skin than any other weather. You sweat more, oil flows more freely, and at the same time sun, air conditioning and long warm days quietly pull water out of the skin. That is why summer skin can feel oily and dehydrated at once: what it is losing is water, not oil. The answer is rarely to strip it back harder. It is to protect it properly, lighten the textures, and keep the water topped up.

No serum, cream or clever routine matters more in hot weather than sunscreen. The NHS advice is clear: use at least SPF 30 against UVB with at least 4-star UVA protection, apply it generously, and reapply frequently, especially after sweating or swimming. Mavala's lane is caring for your skin around that: a well-hydrated, calm base helps sunscreen sit better and skin cope better with the heat.

Heavy creams can feel suffocating in the heat, but skipping moisturiser altogether leaves dehydrated skin worse off. The summer swap is lighter, water-first hydration: a humectant like hyaluronic acid draws water into the skin without any heaviness, which is exactly what hot-weather skin is missing.

The Aqua Plus Featherlight Cream is built for exactly this job: a bestselling daily moisturiser that hydrates without weight and sits well under make-up. If you want the fuller picture of how hyaluronic acid works at different depths of the skin, our hyaluronic acid guide covers it.

One of our favourite hot-weather habits comes straight from Mavala's own usage advice: keep the Skin Vitality Alpine Micro-Mist in the fridge. Chilled, it becomes an instantly cooling spritz for the face that refreshes without disturbing make-up, and on the worst afternoons you can soak two cotton pads with it and rest them over closed eyes for two minutes. Simple, cheap to run, and genuinely lovely at 30 degrees.

Hot-weather make-up is a less-is-more game. A full base tends to slide, so let a lighter routine show more skin and put the effort where heat hits hardest: the eyes. A waterproof mascara holds through sweat, humidity and a swim, which is why the Mascara Volume and Length Waterproof earns its place in a summer make-up bag. Setting with a fine mist rather than heavy powder keeps the finish fresh instead of flat.

Heat is harder on the bottle than on the manicure. Nail polish hates warmth and direct sun: it thickens, separates and dries out faster, so store bottles somewhere cool and dark with the lids tightly closed, never on a sunny windowsill or in a hot car. Your nails themselves mostly need what the rest of you needs in summer: hydration. Water, sun and sand are drying, so a little daily care for the nail contour goes a long way; our cuticle care guide has the full routine.

Being honest: some summer skin trouble is not a cosmetic matter. If you develop an itchy, prickly rash of small raised spots in the heat, that is often heat rash, and the NHS advice is to keep the skin cool: loose cotton clothing, cool showers, plenty of fluids, and a cold damp cloth on the itchiest patches rather than scratching. A pharmacist can help with treatments, and see a GP if a rash does not settle within a few days. Skincare can comfort skin in the heat; it does not treat a medical rash.

The fridge is a nice-to-have rather than a must: skincare does not need refrigeration to work. But a chilled water-based mist is genuinely more refreshing, and Mavala's own advice for the Alpine Micro-Mist includes storing it in the fridge for a cooling boost. Creams and serums are happy anywhere cool, dark and dry.

Yes, but a lighter one. Heat and sun dehydrate skin, and skipping moisturiser makes that worse, not better. Swap rich textures for a light, water-first formula with a humectant such as hyaluronic acid, which hydrates without heaviness.

Yes. Waterproof formulas are designed for regular wear, and in hot weather they simply hold better through sweat and humidity. The one habit that matters is removing it gently at the end of the day with a remover made for waterproof make-up, rather than rubbing.

Use less of it. A lighter base slides less than a heavy one, waterproof formulas hold the eyes, and a fine facial mist refreshes the finish through the day. Blotting rather than re-powdering keeps the look fresh without building up layers.

Heat damages the polish in the bottle more than the polish on your nails. Warmth and sunlight thicken and separate nail polish, so store bottles cool, dark and tightly closed. On the nails, summer's real enemy is dryness from water, sun and sand, so keep cuticles and nail contours hydrated.

Written and fact-checked against UK health guidance. NHS, Sunscreen and sun safety (SPF and UVA advice, application and reapplication). NHS, Heat rash (prickly heat) (self-care for heat rash and when to seek help). On humectants and hydration: Moisturizers, StatPearls, National Library of Medicine (NCBI Bookshelf). Product details verified against Mavala's live product information, July 2026.

Mavala is a Swiss, family-owned skincare and beauty house, developed and made in Switzerland since 1959. Its skincare, including the Aqua Plus and Skin Vitality ranges featured here, is dermatologically tested. This guide is grounded in Mavala's own product information and the UK health sources listed above.