SPF30? SPF50? Three stars? Five stars? Choosing sunscreen can feel like reading a restaurant review. But those little stars on the bottle are telling you something rather important about your skin.

Not All Sunscreens Are Created Equal

Picture yourself standing in the sunscreen aisle.

You've got approximately 47 different bottles staring back at you, all promising wonderful things.

SPF30. SPF50. Sensitive. Sport. Family. Ultra. Invisible. Water-resistant.

And then there's that little circle with a row of stars.

Three stars. Four stars. Five stars.

What is this, a hotel booking website?

Actually, those little stars are rather important. Because while most of us know to look for a high SPF, far fewer understand what a sunscreen's UVA Star Rating means.

And here's the interesting part: two sunscreens with the same SPF can offer very different levels of UVA protection.

So, before you grab the nearest bottle and head for the beach, let's explain why those stars deserve a little more attention.

First, Meet the Sun's Two Troublemakers: UVA and UVB

Before we get into the stars, we need a quick introduction to the two main types of ultraviolet radiation that affect our skin.

UVB: The One That Burns

UVB radiation is the main cause of sunburn.

It's responsible for that familiar red glow after you've spent rather too long in the garden, at the beach or enjoying an unexpectedly sunny British afternoon.

UVB also contributes to skin damage and skin cancer.

It's the type of radiation measured by the familiar Sun Protection Factor, or SPF.

UVA: The Sneaky One

UVA is a little less obvious.

It penetrates deeper into the skin and contributes to premature skin ageing, including wrinkles, uneven pigmentation and loss of elasticity.

UVA also plays a role in the development of skin cancer.

Unlike UVB, UVA levels are relatively consistent throughout daylight hours across the seasons, and UVA can penetrate clouds and ordinary window glass.

So, even when you're not getting sunburnt, your skin may still be exposed to UVA radiation.

And that's why broad-spectrum protection matters.

You want a sunscreen that takes care of both.

So What Exactly Is the Boots Star Rating?

Despite its rather glamorous name, the Boots Star Rating has nothing to do with customer reviews.

You won't find someone called Sandra from Bournemouth giving a sunscreen five stars because it arrived promptly and smelled lovely.

The system was developed by Boots in 1992 to help consumers understand something that SPF alone doesn't tell them: how balanced a sunscreen's protection is against UVA and UVB radiation.

Here's how it works.

SPF measures protection against UVB, while the Boots Star Rating compares a sunscreen's UVA absorption with its UVB absorption.

The closer the two levels of absorption are to one another, the higher the star rating.

In simple terms, the stars tell you whether your sunscreen is doing a similarly good job across both parts of the UV spectrum.

And the highest possible rating?

You guessed it.

Five stars.

What Do the Five Stars Actually Mean?

The traditional Boots system classifies UVA protection using a five-star scale.

Rating	Classification
★	Minimum
★★	Moderate
★★★	Good
★★★★	Superior
★★★★★	Ultra

Under the current testing method, the five-star classification requires a UVA-to-UVB absorption ratio of at least 0.9 before UV exposure, together with a sufficiently high ratio after laboratory irradiation.

In everyday language, this means the sunscreen must demonstrate particularly well-balanced protection across UVA and UVB.

And here's something worth remembering.

Five stars doesn't mean a sunscreen blocks 100% of UVA rays.

It means the product achieves the highest classification for the balance of UVA and UVB absorption.

That's an important difference.

A five-star rating tells you something valuable, but it should always be considered alongside the product's SPF.

Why SPF50 Alone Doesn't Tell the Whole Story

Let's imagine two sunscreen bottles sitting on a shelf.

Both are labelled SPF50.

At first glance, you'd assume they provide much the same protection.

And against UVB, assuming they're applied correctly, their labelled SPF indicates the same level of protection.

But what about UVA?

One sunscreen might have a three-star UVA rating, while the other has five stars.

Although both have the same SPF, their UVA protection profiles are different.

The five-star product provides a higher level of UVA absorption relative to its UVB absorption.

Which means the SPF number on the front of the bottle is only part of the story.

Think of it like buying a car.

Having a powerful engine is wonderful, but you'd probably also like excellent brakes.

You really want the whole package.

Here's Where EVY Technology Earns Its Five Stars

Now for the bit we're particularly proud of.

EVY Technology's sunscreens have achieved the highest possible five-star UVA rating under the Boots testing system.

And that's not simply us giving ourselves a rather enthusiastic review.

EVY confirms that its sunscreen range has undergone Boots Star Rating testing and achieved five stars.

That means EVY offers exceptionally well-balanced UVA and UVB protection, as assessed by this recognised laboratory method.

Whether you're looking for sunscreen for the family, protection for sport and outdoor adventures or an everyday facial SPF, EVY has made strong UVA protection an important part of its sun protection technology.

It's one of the reasons we believe EVY offers something rather special.

Because effective sunscreen shouldn't just help prevent you from going red in the sunshine.

It should also protect against the less immediately visible effects of UV exposure.

And that's where excellent UVA protection really comes into its own.

What Makes Five-Star UVA Protection So Important?

We all tend to notice sunburn.

It's rather difficult to ignore when your shoulders resemble a pair of freshly cooked lobsters.

But UVA-related damage is usually less obvious.

It can develop gradually, contributing to changes in the skin over many years.

1. Helping Prevent Premature Skin Ageing

UVA radiation contributes to the breakdown of collagen and elastin, two important components that help maintain the skin's firmness and elasticity.

Over time, repeated exposure can contribute to fine lines, wrinkles and changes in skin texture.

A high-quality broad-spectrum sunscreen helps reduce this exposure.

2. Protecting Against Uneven Pigmentation

Ever noticed darker patches or an uneven skin tone developing after spending time outdoors?

UVA radiation can contribute to pigmentation concerns, including the appearance and persistence of dark spots.

Consistent sun protection is especially important for people trying to manage UV-related pigmentation.

3. Looking After Long-Term Skin Health

This is the big one.

Both UVA and UVB radiation contribute to skin damage and the risk of skin cancer.

Using effective sunscreen alongside shade, clothing and sensible sun exposure habits can help protect your skin.

So although we're very happy to talk about maintaining a youthful-looking complexion, the real benefit goes far beyond appearance.

Healthy skin matters at every age.

But Does Five Stars Mean SPF30 Is Better Than SPF50?

Ah, now that's a good question.

And the answer is no.

A five-star SPF30 sunscreen isn't automatically more protective overall than an SPF50 sunscreen with a lower star rating.

Why?

Because SPF and the UVA Star Rating measure different things.

SPF tells you about UVB protection.

The star rating tells you about the relative balance of UVA and UVB absorption.

A higher SPF sunscreen may provide greater absolute UVA protection even if it has fewer stars.

The ideal approach is to look at both.

Choose a suitable SPF for your skin and expected UV exposure, and seek strong UVA protection too.

The NHS recommends at least SPF30 and a minimum four-star UVA rating.

And with EVY, you can choose SPF30 or SPF50 products that also offer five-star UVA protection.

A rather reassuring combination.

There's More to a Great Sunscreen Than Numbers

Of course, sunscreen performance isn't just about what happens in a laboratory.

There's another very important factor.

You.

More specifically, whether you actually enjoy wearing the product.

Because a sunscreen can have impressive SPF and UVA ratings, but if it feels unpleasant, looks greasy or leaves a sticky residue, chances are you won't be terribly enthusiastic about using it every day.

That's where EVY's innovative Swedish mousse technology offers another advantage.

Unlike traditional creams and lotions, EVY's lightweight mousse is designed to spread easily and absorb comfortably, leaving a non-sticky finish.

The formulations also support the skin's natural protective barrier and are designed to be suitable for sensitive skin.

EVY's technology is developed with durability and water resistance in mind, making it particularly appealing for active lifestyles.

Whether you're swimming, running, exploring, gardening or simply heading out for your morning coffee, comfortable sun protection makes it easier to maintain good habits.

Remember, though, that even a water-resistant, long-wearing sunscreen needs to be reapplied according to the product instructions, especially after swimming, sweating or towel drying.

Because the best sunscreen is the one you'll use properly and consistently.

What About That Little UVA Circle?

While we're decoding sunscreen packaging, there's another symbol worth knowing.

You may have spotted the letters UVA inside a circle on the back of sunscreen bottles.

This is a separate UVA protection marking used in Europe.

It indicates that a product meets the relevant UVA protection standard, including a UVA protection factor of at least one-third of the labelled SPF.

That's useful reassurance, but the Boots Star Rating tells you something different.

The UVA circle relates to a minimum standard of UVA protection, while the Boots stars indicate the balance of UVA and UVB absorption.

They aren't interchangeable measures.

And while a sunscreen doesn't need to display Boots stars to provide excellent UVA protection, EVY's five-star rating offers customers an additional way to understand its broad-spectrum performance.

Five Things to Look for When Choosing Sunscreen

Next time you're browsing for sunscreen, keep these five things in mind.

1. Choose an appropriate SPF. SPF30 is a good minimum for many outdoor situations, while SPF50 offers a higher level of UVB protection.

2. Check the UVA protection. Look for a four- or five-star UVA rating, or appropriate UVA protection markings.

3. Choose a texture you enjoy. Lightweight, comfortable formulas can make regular application much easier.

4. Consider your lifestyle. Swimming, sport, outdoor work and family adventures may call for particularly durable, water-resistant formulas.

5. Apply enough and reapply. Even excellent sunscreen can't provide its labelled protection if you don't use it correctly.

Simple, really.

And considerably less confusing than trying to decipher the entire sunscreen aisle.

The Final Verdict: Five Stars Really Do Matter

When choosing sunscreen, it's easy to focus entirely on the big SPF number printed on the front.

But proper sun protection is about more than avoiding sunburn.

It's about protecting your skin from both UVA and UVB radiation, supporting its long-term health and helping prevent avoidable sun damage.

The Boots Star Rating gives you another useful piece of information when making that decision.

And with EVY Technology achieving the highest five-star UVA classification across its sunscreen range, you can feel confident that broad-spectrum protection is taken seriously.

Combine that with EVY's innovative mousse technology, comfortable formulations and high-performance SPF options, and you've got a rather compelling reason to make EVY part of your everyday sun protection routine.

Because when it comes to protecting your skin, why settle for anything less than an excellent all-round performance?

EVY Technology. Five-star UVA protection. Innovative Swedish skincare.

Live life boldly. Protect your skin beautifully.

Discover EVY's Five-Star Sunscreen Collection

Whether you're protecting delicate family skin, preparing for an outdoor adventure or looking for a lightweight everyday facial sunscreen, explore EVY Technology's range of SPF30 and SPF50 mousses.

Discover the difference of advanced Swedish sunscreen technology and five-star UVA protection.

Shop EVY Sunscreens →

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Sources: Dermatest Eurofins Boots Star Rating