Best sun creams: Which? Best Buys and expert buying advice

Our rigorous independent tests identify Best Buy sun creams that pass British Standard tests for UVA and UVB sun protection, so you know you're getting a product you can rely on – as well as being pleasant to use. 

In this guide, we explain how sun cream works, the different types available and how to apply it properly for the best results.

See our top sunscreen picks below, or head to our full sun cream reviews to see how big brand and budget options fared in our tests – and the products to steer clear of.

Best sun creams

Only products we've independently reviewed and that meet all our tough criteria can be Best Buys.

For sunscreens, this means they must pass independent lab tests showing that they provide acceptable UVA and UVB sun protection. They must also be easy and pleasant to apply. 

These are our top picks from our tests:

Every year, we rigorously test sun creams – checking that they meet their sun-protection claims and are pleasant to apply – to find the best sun cream for you. Only logged-in members can see our full list of the best sun creams in our table below. Join Which? to get instant access to our Best Buys and expert reviews.

Looking for the best cheap sun creams? Head to our sun cream reviews and use the 'Great Value' filter. These are products that passed our sun-protection tests, scored well in our Which? tests and are cheaper than average.

Sun creams to avoid

Shockingly, our sunscreen tests regularly uncover sun creams that fail UVA or UVB tests (sometimes both), meaning they don't provide the protection they're claimed to. We don't currently have any sun creams that have failed our tests in 2026, but we will update this section in our next round of testing if anything fails. 

Find out more about how we identify Which? Don't Buy sun creams

SPF, UVA and UVB ratings explained

What does SPF mean?

The sun protection factor (SPF) indicates the amount of protection sun creams offer against UVB radiation. It tells you how much longer skin that's covered with the sun cream takes to redden in response to UV, compared with unprotected skin.

What factor sun cream should I use?

The NHS and Cancer Research UK both recommend you pick a product with an SPF of at least 30. If your skin burns easily, it's best to stay on the safe side and opt for a higher SPF.

Generally, kids' and facial sun creams are at least SPF50, because children's skin is more sensitive, and our faces are typically more exposed to the sun.

What are UVA, UVB and UVC?

UVA (ultraviolet A) is a type of ultraviolet radiation from the sun, which has been linked with premature ageing. Both UVA and UVB have been linked with skin cancer.

UVB (ultraviolet B) is another type of radiation from the sun and is the main cause of sunburn. It has a shorter wavelength than UVA.

UVC (ultraviolet C) is the shortest form of UV radiation. Fortunately, UVC from the sun is absorbed by the Earth's atmosphere and doesn't reach the ground.

Of the UV rays that get through our atmosphere and can affect our skin, UVB makes up 5%, and the other 95% is UVA.

What does the UVA seal mean?

The UVA seal indicates that a product meets the EU recommendation for sun creams to offer a UVA protection factor equivalent to at least a third of its SPF. 

However, some products in the UK display the Boots star rating for UVA instead. The protection claimed by these products exceeds the minimum required by the EU.

However, it's worth remembering that the star rating is a system developed (and owned) by Boots, so not all sun creams will display it. Some sun creams use the PA system (PA+, PA++ and PA+++), while others use the general EU UVA logo (the abbreviation 'UVA' displayed in a circle). The latter indicates that the product's UVA protection factor is greater than or equal to a third of its SPF level.

Chemical vs physical (mineral) sunscreen

Sun creams protect your skin using UV filters, which are classified into two types: chemical and physical (also known as mineral). They may use one type of UV filter or a combination of the two.

It's often said that mineral sunscreens reflect UV rays, while chemical sunscreens absorb them. In reality, the difference isn’t quite that simple. Both types protect your skin mainly by absorbing UV radiation before it can damage your skin cells. The UV energy is then converted into a tiny amount of heat, which is released harmlessly from the skin. 

Mineral filters, such as zinc oxide and titanium dioxide, also reflect and scatter a small proportion of UV light, but this accounts for only a small part of their protective effect. When they use the right mix of filters to give broad‑spectrum protection (covering both UVA and UVB), both mineral and chemical sunscreens are effective at reducing your skin’s exposure to harmful rays – as long as they’re applied correctly and in sufficient amounts.

When we tested a selection of popular mineral sun creams in 2022, all failed one or both key sun-protection tests, so we recommend being cautious. If you do choose to use them, apply liberally and often.

The truth about SPF lip balms and beauty products, according to a dermatologist

How (and when) to use sun cream

The UV index measures the intensity of UV radiation and gives a good indication of whether you need to apply sunscreen on any given day. The index ranges from low (a rating of one or two) to very high (eight and over). 

UV levels in the UK are typically lower than in most of Europe, and generally don't exceed level 8. You may see levels at nine or higher in Mediterranean regions of Europe.

For preventing sunburn and resulting skin damage that could potentially cause cancer, experts including Cancer Research UK and the British Association of Dermatologists (BAD) advise that people should wear sunscreen when UV levels are 3 or above (depending on your skin type and any relevant illness, or family history of skin cancer).  

They also add that the sun is usually only at these levels between mid-March and mid-October in the UK.

For up-to-date figures, you can check the Met Office UV index forecast. Or if you have a weather app on your phone, it might have a UV Index card, so you can check levels easily. 

Bear in mind that you can still burn even on cooler or cloudy summer days, as clouds don't block all UV rays. 

People with lighter skin are more likely to burn and may need sun protection at lower levels than those with darker skin. But everyone ultimately needs sun protection.

If you know you burn more easily, play it safe – particularly in spring, when it's easy to get caught out as the sun's intensity increases.

Ultimately, wearing sunscreen should be one part of a three-pronged approach to sun safety, which also includes staying out of the sun or making use of the shade when the sun is at its strongest, and wearing clothes and accessories that protect you from the sun. 

Does sunscreen prevent tanning?

No sunscreen provides 100% protection from the sun, which means it can't completely prevent you from tanning. Some of the sun's rays will still reach your skin even if you're wearing sun cream.

Remember, tanned skin is damaged skin, so whether it takes a few hours or a few days for your skin to change colour, it will also mean the skin has had to produce more melanin to try to protect it from UV rays.

Do you need sunscreen in winter in the UK?

Some skincare or beauty experts recommend wearing sunscreen all year round, particularly on exposed areas such as the face, neck and hands.

For most people in the UK, the use of sun protection in the winter months isn't necessary, as UV levels are too low. However, if you have been previously diagnosed with skin cancer, have vitiligo or another condition that leaves your skin particularly sensitive to the sun, then it's recommended.

Whether you choose to wear some kind of sun protection all year round is up to you and depends on your skin type, medical history and lifestyle. 

If you're going on a winter holiday, such as skiing or spending time in snowy or high-altitude places, remember that high protection SPF is important, as is eye protection. This is because snow reflects sunlight, and UV rays are more intense at higher altitudes.

Best hand creams and best lip balms: keep your hands and lips moisturised all year round with our expert reviews

How to apply sun cream properly

1. It’s best to first apply sun cream 15 minutes before you head outside. 
2. Experts recommend that you then reapply it every two hours, but you may need to reapply it sooner if you go swimming, are active or sweat a lot.
3. Most people don't apply enough or reapply often enough. The World Health Organization (WHO) recommends 35ml for the whole body – that’s around seven teaspoons' worth: one for the face/head and neck, one for each arm and each leg, and one each for your front and your back.
4. Not applying enough sun cream reduces the level of protection you'll receive. According to the WHO, applying a smaller quantity of sun cream leads to a disproportionate reduction in protection – if the quantity applied is reduced by half, protection may fall by as much as two thirds.
5. If you're going to be out in the sun for long period, don't just rely on sunscreen to protect you. Make use of hats, clothing and shade where possible to protect yourself, especially in the middle of the day when the sun is at its strongest. Wide-brimmed hats that shade the back of your neck are preferable to baseball caps. Sunglasses are also important to protect your eyes.

As well as using sunscreen, stay protected with our best mosquito repellents. We found some that protect for more than 10 hours, while others barely last 30 minutes

Does sunscreen expire?

Yes. Before using a sun cream, check the bottle for a 'period after opening' symbol. This will tell you how long it can be used after opening.

Storing sun cream at high temperatures or in direct sunlight can reduce its shelf life, and older products may not work as well. So if you took last year's sun cream to the beach with you, it's probably time to buy a new bottle, particularly if it's changed consistency or colour – signs that it's past its best.

When you're out and about, try to keep the bottle in the shade as much as possible to maintain its effectiveness for longer.

Health? or Hype?

Make the right choice with recommendations you can trust, backed by expert testing.

Explore health recommendations

Which type of sunscreen is best?

Common options include aerosols, spray lotions and creams. Fine sprays can be light, quick and less messy to apply, but aren't great on a windy beach where the product is easily blown away. Plus, they can be irritating for those prone to prickly heat. We don't test aerosol sunscreens - here's why: 

Neal Rimmer, Which? scientist. says: 'Studies show that wind speed correlates directly with overspray. In a light breeze, more than a third of your sunscreen can be lost to the air; in moderate wind, that figure can skyrocket to a staggering 93%. To achieve the SPF on the label, you’d need to spray for significantly longer, making these "convenient" sprays both expensive and deceptively ineffective.'

Some kids' options are brightly coloured to make it easier to see if you've missed a spot.

Ultimately, what's right for you depends on your skin type, situation and preferences. 

Best sunscreens for babies and kids: our independent lab tests reveal the kids' sun creams you can rely on to provide good sun protection

Sun cream claims to watch out for

Once-a-day sun creams

Some products are claimed to provide sun protection for up to 10 hours after a single application. 

However, in 2016, we conducted our own tests on several once-a-day sun creams, testing their sun-protection claims after initial application and again after a day's wear.

We saw an average 74% decrease in SPF protection at the end of the tests. We shared our concerns with Cancer Research UK (CRUK) and the British Association of Dermatologists (BAD). Both advise against relying on any sun cream for extended periods in the sun.  

At Which?, we don’t think ‘once-a-day,’ ‘eight-hour’ or similar single-use claims should be made on sun creams in the UK (these claims are banned in other countries, such as Australia). They may give a false sense of security, and normal daily or holiday activities such as swimming, sweating and clothes rubbing can cause these products to rub off, reducing protection.

Even with our test subjects just sitting on a chair in a T-shirt, we saw substantial reductions in the level of sun protection, so we don't think you can rely on once-a-day sun cream to keep you protected all day.

Since 2018, the Cosmetic, Toiletry and Perfumery Association (CTPA) has brought out guidance encouraging a shift from once-a-day claims to 'durable' sun cream, with more guidance given on when reapplication is necessary, but we're still seeing plenty of claims that are similar to 'once-a-day'.

Do 'once-a-day' sun creams last all day? Our lab tests reveal all. 

Water-resistant sun creams

It's common for sun creams to claim to be 'water resistant', but this doesn't mean that they're waterproof. 

The industry guideline for water-resistant sun creams allows a product's SPF to drop by 50% after a total of 40 minutes in water. Water-resistance testing also takes place in what is essentially a bath – using tap water. 

We tested two popular sun creams in chlorinated water (to mimic a swimming pool) and salty water (to emulate the sea). We also added another scenario using fast-moving tap water to see what effect this had. Most of the time, the products weren't as effective in our more realistic conditions as they were in tap water.

If you're using sun cream at the beach, apply plenty before swimming, and again when you leave the water.

Reef-safe sun creams

Mineral sunscreens in particular often promote their environmental credentials, the most common being that they’re ‘reef-safe’ or 'ocean-friendly'.

This tends to mean that two commonly used chemical UV filters linked to coral bleaching – oxybenzone and octinoxate – aren’t used.  

In some places, including Hawaii, the sale of sunscreens with these compounds is banned.

However, there's no agreed definition of 'reef-safe', research is still ongoing as to the impact of these chemicals, and our tests found many mineral suncreams failed to protect as claimed – so take any claims with a pinch of salt. 

We've assessed the chemicals used in sunscreens (along with the packaging) for their eco credentials and found some are better than others. See our sunscreen reviews to see how each was rated for sustainability. 

Face sun creams

Sometimes, the traditional slather-all-over sun creams that are perfect for a day at the beach might feel a bit greasy on your face. That’s where facial sun creams come in. 

They’re non-greasy and high SPF – the brands we've tested are all SPF50 or SPF50+. This makes them good for day-to-day sun protection for your face, which is more frequently exposed to the sun’s rays.

Read our guide to the best sunscreens for your face to find out which ones we rated highly in our tests.

How to get sunscreen out of clothes

A sunscreen that ruins clothes might quickly lose its shine. Unfortunately, it’s a common issue caused by certain UV filters, such as avobenzone. 

We ran a snapshot test of five leading sunscreens containing avobenzone, rubbing sunscreen onto white T-shirts and leaving it to dry before washing and drying them.

Nivea Sun Protect & Moisture SPF30 Spray and Boots Soltan Kids Protect & Moisturise Lotion SPF50+ left the least noticeable stains. 

Aldi Lacura SPF30 Sun Lotion and Piz Buin in Sun Moisturising Sun Lotion SPF30 left more clearly visible ones. Garnier Ambre Solaire Kids Water Resistant Sun Cream Spray SPF50+ left the most obvious stains in our test.

You’ll mitigate the worst staining by fully rubbing in sunscreen when you apply it, and being mindful of what you wear on days when you're using a lot of sunscreen.

To deal with sunscreen stains:

1. Scrape off any excess sunscreen
2. Run the stained area under warm water
3. Pretreat the stain with detergent to help break it down
4. Wash on the hottest temperature that the stained clothes can be safely washed on.

Vitamin D deficiency and sun cream

Vitamin D is essential for bone health and also helps to keep your teeth healthy. The main sources are sunlight exposure and diet.

During summer, everyday casual exposure is adequate – the WHO advises five to 15 minutes in the summer sun, two or three times a week. Most of us will naturally spend longer than this in the sun during the summer, so it’s still important to use sun cream.

Some people worry that using sun cream might prevent them from getting enough vitamin D, but this isn’t the case unless you really overdo it. 

From April to September, when the UV Index is generally higher, it takes 10 to 15 minutes of sun exposure each day for those with fair-to-olive skin to get enough vitamin D. 

It takes longer for those with darker skin that rarely burns – it can take 25-40 minutes for the darkest skin type. 

Want the inside track on vitamin D? We have the tips you need and the mistakes to avoid from our resident nutritionist and supplements expert, Shefalee Loth.

Best vitamin D supplements: compare the results of the vitamin D supplements we've reviewed

Other ways to stay safe in the sun

Don't just rely on sunscreen, it's just one part of a wider range of measures you should use to keep yourself protected:

• Avoid the midday sun – between 11am and 3pm is when the sun is strongest and you're at the greatest risk of getting burnt.
• Cover up – wear sunglasses to protect your eyes and grab a hat if you need to keep your face out of the sun. Use clothing to cover up typically over-exposed areas, such as shoulders.
• Drink plenty of water –make sure you drink regularly on a sunny day. Doing so can relieve headaches and help to heal sunburn, as drinking hydrates your body.
• Know how to treat sunburn – Try to avoid getting burnt, but if you have been caught out, get out of the sun, cool yourself with a shower or a damp towel and apply some aftersun, moisturiser or aloe vera gel. You can take painkillers to deal with any discomfort. The NHS recommends avoiding using ice, popping blisters or wearing tight clothing – or any further sun exposure – while healing. If you feel very unwell, or your child has sunburn, you should talk to your GP or NHS 111. See the NHS sunburn advice page for more.