SPF isn’t one-size-fits-all — and no, it’s not just something you slather on during a heatwave or beach holiday. Daily SPF is your skin’s best friend, but the strength you need can depend on everything from your age to your skin tone to how much time you spend outside.
So, who needs what SPF? Let’s break it down.
What Does SPF Actually Mean?
SPF stands for Sun Protection Factor and measures how well a sunscreen protects your skin from UVB rays — the kind that cause sunburn, skin damage and contribute to skin cancer. An SPF 30 blocks around 97% of UVB rays, while SPF 50 blocks about 98%.
So while higher numbers do offer more protection, the difference isn’t huge — which means your skin type and lifestyle matter just as much.
The SPF Sweet Spot, By Skin Type & Age
1. Pale or Fair Skin (including redheads and those with freckles)
You burn easily and rarely tan.
Recommended SPF: 50+, all year round.
Why? Your skin has less melanin (the pigment that offers some natural UV protection), making it more vulnerable to sunburn and long-term damage. Use a broad-spectrum SPF 50 every day — even in the UK.
2. Medium Skin Tones (olive, tan easily but can still burn)
Recommended SPF: 30–50, depending on sun intensity.
You still need daily protection, especially if you’re outdoors often. Aim for SPF 30 minimum on cloudy days and bump it up to 50 during holidays or prolonged sun exposure.
3. Deep or Dark Skin Tones
Yes, darker skin contains more melanin — but it’s still susceptible to sun damage and skin cancer, especially when unprotected.
Recommended SPF: 30 minimum, year-round.
Also, look for non-chalky formulas designed to blend into deeper skin tones without the ghostly white cast.
4. Kids and Teens
Children’s skin is more sensitive and thinner than adults’, making them more prone to damage.
Recommended SPF: 50+, water-resistant formulas.
Apply generously and reapply every two hours — especially if they’re in and out of water.
5. Over-50s
As we age, our skin becomes thinner and more prone to damage and pigmentation.
Recommended SPF: 50, especially on the face, neck, and hands.
Even if you didn’t wear sunscreen in your youth, it’s not too late to start protecting what you’ve got now.
6. People Using Retinol or Exfoliating Acids
Retinol, AHAs, and BHAs make skin more sun-sensitive.
Recommended SPF: 50, especially if using strong skincare actives.
Always apply in the morning after your skincare routine and reapply if you’re out and about.
Other Factors to Consider
- Living in hot or high-altitude locations? Stick to SPF 50.
- Spend most of your time indoors? SPF 30 is usually enough — but don’t skip it. UVA rays still get through windows.
- Going skiing? Yes, you need sunscreen. Snow reflects UV rays, increasing your exposure.
Final Word
The best SPF is the one you’ll actually wear — and wear every day. Whether it’s a lightweight gel, a moisturiser with added SPF, or a mineral formula for sensitive skin, there’s something out there for everyone.
Just remember: your skin doesn’t care what the weather looks like. UV rays are always around — so your SPF should be too.