First, let’s talk about the sun’s rays – specifically UVA and UVB, which are forms of ultraviolet (UV) radiation. While UVB rays are primarily responsible for sunburns and play a direct role in skin cancer, UVA rays are the ones that penetrate deeper into the skin and cause long-term damage like premature aging and pigmentation. In fact, the majority of UV rays that reach our skin are UVA.
To protect against both, you need a broad-spectrum sunscreen. If a product is labeled “broad spectrum,” it should shield you from both UVA and UVB rays. But here’s where things get tricky: not all sunscreens labeled “broad spectrum” actually provide full coverage. Independent testing has found that some brands fall short of their claims.
That’s why choosing a reputable, medical-grade skincare line is so important. For example, Skinbetter Science offers sunscreens that are backed by science and clinical testing, ensuring that you’re actually getting the protection your skin needs. Their Tone Smart SPF 75 and Sunbetter SHEER SPF 70 Lotion both use advanced zinc oxide formulations that provide true broad-spectrum protection without the white cast.
So… Is SPF 100 Three Times Better Than SPF 30?
Nope! That’s a common myth.
- SPF 30 blocks about 97% of UVB rays
- SPF 50 blocks around 98%
- SPF 100 only goes up to 99%
So the difference between SPF 30 and SPF 100 is just 2% – not enough to make a meaningful difference for most people. That’s why the American Academy of Dermatology recommends using a sunscreen with at least SPF 30, which offers solid protection when used correctly.
What Should You Use?
If you’re planning to be outdoors for extended periods, SPF 50 is a great option. For daily use or incidental sun exposure (like walking to your car or sitting near a window), SPF 30 is typically enough.
But What If Sunscreen Breaks You Out or Looks Chalky?
We’ve heard all the excuses – “it clogs my pores,” “it feels greasy,” or “it makes my skin white.” But skincare has come a long way.
- Many medical-grade sunscreens are now formulated for acne-prone or sensitive skin.
- Zinc oxide, a key ingredient that protects against UVA, is no longer the chalky mess it once was. New formulations, like Skinbetter’s Sunbetter Tone Smart Compact SPF 68, offer invisible, tinted protection in an easy-to-apply mineral compact. Perfect for reapplication over makeup!
- If lotions aren’t your thing, there are also sprays, sticks, and powder-based SPFs – no excuses!
Bottom Line
Choose a sunscreen that works for your skin type and lifestyle – but make sure it’s broad spectrum, contains zinc oxide close to 10%, and is from a trusted brand. And don’t forget to reapply every two hours if you’re spending time outdoors.
With so many modern options, especially from brands like Skinbetter Science, there’s no reason to skip sunscreen. Your skin will thank you – today, and for years to come.
