This is how to reapply SPF correctly without disturbing your make-up

Whether you're committed to a moisturiser with SPF or a mineral sunscreen, the rules of facial SPF are simple: apply at least two fingers worth of product daily, come rain or shine, and top-up every two hours.

But while finding a sunscreen that's pleasant to use is easy given all the textures and finishes now available (a Korean SPF is especially user-friendly for everyday wear), replenishing SPF throughout the day can be tricky if you're wearing make-up.

For many of us, removing and re-doing all our make-up only to top-up our sunscreen is simply not an option, so it's no surprise that we tend to have a once-and-done approach to SPF application. But re-application is important and does make a difference. We went straight to the experts to find out how to properly replenish our sun protection.

Meet the experts

Dr Clare Kiely, dermatologist and co-founder of The Skin Diary

Kenneth Soh, make-up artist

Mira Parmar, make-up artist

Why do we need to re-apply SPF?

According to Dr Clare Kiely, 80% of visible skin ageing is caused by UV exposure rather than age. So while sunshine-derived vitamin D is essential to our health, it is imperative that we protect our skin from damage and skin cancer through SPF.

"If you’re outdoors for long periods of time, such as on sunny holidays, swimming, or exercising, this causes your sunscreen to wear off, meaning frequent reapplication is essential," says says Dr Kiely. "In these situations, I also recommend UV-protective clothing for reliable, consistent coverage that doesn’t wash off. In lieu of that, you need to be topping up your sunblock every two hours."

"If you’re mostly indoors during the day, a morning application followed by a second one before heading home or outdoors again is usually sufficient," she continues, "this is my own routine."

Some sunscreen filters also degrade after prolonged UV exposure, even without water or sweat (this is called photodegradation). New technologies include encapsulated and stabilised filters which are more durable, but reapplication is still crucial.

How much SPF should we re-apply?

A half teaspoon should take care of the face, neck, ears and hairline. When using an SPF mist or powder, make sure to apply liberally and evenly all over; while lightweight and 'invisible' formulas are great, they can be harder to track as you apply them.

How to top-up SPF without disturbing make-up

Kenneth Soh is a fan of using a make-up sponge. "I currently use a Beautyblender to bounce the SPF on lightly. I almost do a stamping action, like I’m dusting on loose powder," he says, adding that a thin, non-greasy liquid SPF works best for this technique.

That said, he cautions that this method is often better for those with paler faces as it can make deeper complexions appear patchy. For all skin tones, he's a fan of SPF-infused setting sprays.

Mira Parmar seconds this. "It’s so easy and your make-up stays intact," she tells Bazaar.

"I love the Naked Sundays SPF50 Hydrating Glow Mist as it doesn’t move make-up and leaves skin seriously glowy and protected."

"Another favourite is the Preen Screen SPF50 by Ultra Violette and Ultrasun's brilliant Wet Family Skin Spray as it's transparent and fast-absorbing," she continues. "It’s long-lasting, non greasy and perfect for application on both wet or dry skin."

A sunscreen powder is another alternative. These often come in tinted and translucent versions, although it must be said that the shade ranges tend to be limited.

"Supergoop (Re)setting Powder is brilliant. It sets make-up whilst adding SPF30 protection. It can be applied throughout the day and mattifies the skin," shares Parmar. Simply dust it on evenly all over the face for even, lightweight coverage.

Lead image: Getty Images

This article originally appeared on Harper'sBazaar.com/uk

 

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