Do you also think that there is no point in applying sunscreen if you stay indoors all day? Many believe that, but in reality, the sun’s harmful UV rays can pass through your window glass. Also, the light from your phone and laptop also affects your skin. That’s why using sunscreen indoors is as important as outdoors. Let’s find out why indoor sunscreen is important.
UV Rays Passing Through Windows:
Sunlight contains UVA and UVB radiation. Window glass can filter out UVB but UVA can pass through glass and reach your skin at home, in your living room or even in your car. It breaks down collagen and elastin and can cause premature wrinkles and fine lines as well as loose skin.
Blue Light from Devices:
Today’s world is all about indoor screen time with laptops, smartphones, TVs, and tablets. Blue light emitted from all those screens, like sunlight, causes stress to your skin, leading to skin damage. Increased skin stress causes more melanin production, resulting in pigmentation and dark patches on the skin.
Photoaging Risks:
If your face looks older than it should without sun exposure, it could be due to insufficient indoor sunscreen—this phenomenon is called photoaging. Continuous exposure to UVA rays and screen light diminishes your skin’s natural glow, making it look dull.
Choosing the Right Sunscreen:
You don't need heavy or waterproof sunscreen indoors, but remember:
- Choose broad-spectrum protection to guard against both UVA and UVB rays.
- SPF 30 or higher is adequate for indoor use.
- Look for a PA+ rating—the more plus signs, the better the protection against UVA rays.