Daily Mail journalists select and curate the products that feature on our site. If you make a purchase via links on this page we will earn commission - learn moreWhen temperatures soar, even the most carefully applied make-up can start working against you. From foundation that melts by midday to mascara that ends up under your eyes before lunch, heatwaves have a way of exposing every flaw in your beauty routine.The good news? According to make-up artist and Laura Geller Beauty founder Laura Geller, most warm-weather make-up mishaps are entirely avoidable. The key is adapting your routine to the season rather than sticking with the products, formulas and techniques that worked perfectly in winter. After all, our skin often behaves differently in the heat, while changes in skin tone can mean your usual foundation shade is no longer the best match. Make-up artist Laura Geller says most warm-weather make-up mishaps are entirely avoidableAhead, Geller shares the most common make-up mistakes she sees during a heatwave – and exactly how to prevent them.1. Wearing your usual full-face routineThe biggest mistake of all? Refusing to adapt your make-up routine when the weather changes.‘The biggest mistake I see is trying to wear the exact same makeup routine in a heatwave that you wear in cooler weather,’ says Geller. ‘When temperatures rise, less is more.’Heavy layers are more likely to separate, crease and slide around throughout the day, so consider scaling things back. Lightweight, breathable products and strategic concealing will often look fresher than a full face of coverage.2. Relying on heavy, full-coverage foundationA full-coverage base may feel reassuring, but in high temperatures it's often the first thing to fail.‘In hot weather, heavy foundation has nowhere to go but down,’ says Geller.Heat, humidity and perspiration can cause thicker formulas to break apart and look patchy as the day progresses. Instead, swap to a lightweight skin tint, serum foundation or tinted moisturiser that evens out the complexion without weighing it down. Clarins Double Serum FoundationInfused with skincare ingredients and offering a luminous, medium-coverage finish, this foundation smooths rather than masks mature skin, helping it look fresh and radiant even in warm weather. £49 Shop3. Using too much powderWhen shine starts appearing, it's tempting to reach for more powder. Unfortunately, that's often what makes things worse.According to Geller, over-powdering can cling to texture, emphasise dryness and leave skin looking cakey. A light dusting through the T-zone is usually all you need.‘The goal isn't to eliminate every bit of glow,’ she explains. ‘And let's be honest, who doesn't love a summertime glow?’4. Applying make-up immediately after SPFIf your foundation pills or separates within minutes of application, your sunscreen could be the culprit.‘One of the biggest mistakes I see is people not allowing SPF enough time to absorb into the skin before applying makeup,’ says Geller.Giving your sunscreen time to settle creates a smoother canvas and helps prevent product from slipping around. Her advice? Apply SPF generously, then go and make a coffee before reaching for foundation.5. Skipping proper skin prepGreat make-up starts with great skincare – and that's especially true during a heatwave.‘When skin isn't properly hydrated, makeup tends to cling, separate, or wear unevenly throughout the day,’ says Geller.A hydrating primer can help create a smooth, balanced base, but make sure both have fully absorbed before applying make-up. No7 Prime Forever SPF50 PrimerCombining broad-spectrum sun protection with smoothing primer benefits, this lightweight formula helps create a more even canvas while preventing make-up from slipping throughout the day. £24.95 Shop6. Layering too many productsThe more products you pile on, the more likely they are to move.‘Every layer adds weight,’ says Geller. ‘During a heatwave that extra weight can contribute to makeup slipping, melting and breaking apart.’Instead of stacking primer, foundation, concealer and multiple complexion products, look for multitasking formulas that combine coverage, hydration and skincare benefits in one step.7. Touching up without blotting firstIf your make-up has started breaking down, adding more product on top won't necessarily fix it.‘The biggest mistake is applying more product on top of makeup that's already breaking down,’ says Geller.Before reapplying anything, blot away excess oil and sweat with blotting papers or a tissue. Then add only a small amount of product exactly where it's needed.8. Expecting any setting spray to do the jobNot all setting sprays are created equal.Some are designed to add radiance, while others focus on longevity. Geller recommends choosing formulas that lock make-up in place without making skin feel dry or tight.‘If your skin feels tight after application, it's probably not doing your makeup any favours,’ she says. Saie CitySet Lightweight Setting SprayUnlike some mattifying sprays that can leave skin looking flat, this lightweight mist helps lock make-up in place while maintaining a healthy, skin-like finish that's particularly flattering on mature complexions. £30 Shop9. Choosing formulas that are too heavyThe cream-versus-powder debate isn't as important as many people think.‘It's less about cream versus powder and more about the formula itself,’ says Geller.Heavy creams can feel greasy in high temperatures, while traditional powders can look dry and obvious. The sweet spot is lightweight formulas that offer staying power without overwhelming the skin.10. Using eye products that can't handle heatSmudged eyeliner and mascara transfer are among the most common summer beauty complaints.According to Geller, the problem often comes down to using products that simply aren't designed for heat and humidity.‘Choosing a truly long-wear formula can make all the difference between makeup that lasts and makeup that ends up under your eyes by lunchtime.’She also recommends keeping eye looks simple during extreme heat, as multiple layers of eyeshadow can be more prone to creasing and movement.11. Using a moisturiser that's too richYour winter moisturiser may not be doing your summer make-up any favours.‘If a moisturiser is too heavy for the weather, makeup can slide around on top of it,’ says Geller.Switching to a lightweight gel or water-based formula can provide hydration without creating excess slip beneath your make-up. Tatcha The Water CreamThis oil-free moisturiser floods skin with hydration while maintaining a weightless feel, making it particularly well suited to mature skin that needs moisture without excess richness. £69 Shop12. Chasing ultra-glowy social media skinGlass skin and ultra-dewy complexions may look incredible on TikTok, but they're often far less practical in real life – especially during a heatwave.‘Ultra-glowy makeup looks beautiful on social media, but in real life, and especially during a heatwave, it can quickly melt right off,’ says Geller.Rather than aiming for maximum shine, focus on healthy-looking skin with a controlled glow.13. Trying to mattify every inch of your faceIronically, one of the biggest summer make-up mistakes is fighting against the natural effects of warm weather.‘Stop trying to mattify every inch of your face,’ says Geller. ‘A little glow is natural, especially in warm weather.’Instead of striving for a completely shine-free finish, embrace a little radiance and concentrate on keeping skin comfortable and balanced.