Why You Should Apply SPF Indoors - the SPF Guide

 
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Now that it’s getting sunny outside and most of us are staying indoors or working from home, it’s important to not slack off wearing SPF.

UVB rays, the primary sunburn ray, are largely blocked by glass; but more than 50 percent of UVA rays, the main cause of premature skin aging, can penetrate glass. (Both UVA and UVB rays contribute to the development of skin cancer.) If you’re anywhere within several feet of the window, the rays will reach you.

As UV rays are present all year round, including in the fall and winter, you should rely on applying SPF all year round as well. Not only this, but all skin tones need SPF to help defend against skin cancer and aging - even those that rarely burn, so the single best thing you can do for your skin is protect it from the sun.

So what are the different SPFs available?

Chemical SPF uses ingredients like Avobenzone, Homosalate and Octocrylene to absord UV and convert it to heat. They tend to be lightweight and bendable.

Physical SPF uses mineral-based ingredients such as Zinc Oxide and Titanium Dioxide so that it sits on top of skin and reflects UV away. It’s best for sensitive skin and even babies. They are often named “sunblocks”. As physical sunscreens are more moisturising, they can feel heavy on the skin and are difficult to blend in - which is why physical sunscreen is often opted for at home, while chemical under makeup.

Chemical sunscreen is a better option if you:

  • Are swimming and need a water-resistant formulation.

  • Play sports or sweat a lot during the day.

  • Want a sunscreen that absorbs quickly into the skin.

Whether you choose physical or chemical SPF, there are several things to look for on the label:

  • Broad spectrum (protects from both UVA and UVB rays)

  • Fragrance-free

  • Noncomedogenic (won’t clog pores)

  • Oil-free

  • Paraben-free

  • SPF of at least 30 or higher

 
CosmetologyNatalia KulakCosmAes