The sun may feel the same every day, but not all sunlight affects your skin in the same way.
In fact, two different types of ultraviolet (UV) radiation reach the Earth's surface, and each one impacts your skin differently.
Understanding the difference can help you choose better sun protection.
UVB: Think "B" for Burning
UVB rays are shorter wavelengths that primarily affect the outer layers of your skin.
These are the rays most responsible for:
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Sunburns
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Skin redness
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Immediate UV damage
When most people think about sun exposure, they're usually thinking about UVB.
UVA: Think "A" for Aging
UVA rays are longer wavelengths that penetrate deeper into the skin.
They're strongly associated with:
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Premature aging
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Wrinkles and fine lines
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Hyperpigmentation
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Long-term skin damage
Unlike UVB rays, UVA damage often isn't immediately visible. Instead, it builds up over time and may not appear until years later.
Even more surprising? UVA rays can pass through many windows, meaning exposure can happen while driving or sitting indoors near natural light.
What Does Broad Spectrum Mean?
A sunscreen labeled "Broad Spectrum" is designed to protect against both UVA and UVB radiation.
That's important because protecting against sunburn alone isn't enough. Effective sunscreen should help defend your skin from both immediate and long-term UV damage.
Why SUNMUD Uses Zinc Oxide
At SUNMUD, we use non-nano zinc oxide because it provides broad-spectrum protection against both UVA and UVB rays.
Zinc oxide is one of the most effective mineral UV filters available and helps protect your skin across the full range of ultraviolet wavelengths.
That's why it's the foundation of every SUNMUD formula.
The Bottom Line
Not all UV rays are the same.
UVB rays are primarily responsible for burning, while UVA rays penetrate deeper into the skin and contribute to aging and long-term damage.
That's why broad-spectrum protection matters.
Because protecting your skin today is also protecting your skin years from now.
Stay protected with broad-spectrum mineral sunscreen from SUNMUD → https://sunmudsunscreen.com/collections/all
