The best way to slow signs of aging

If you’re like most Americans you’re not going to be thrilled by this solution, and it’s not because it’s expensive or time consuming but rather because it feels unnecessary or annoying and brings back the worst of your childhood beach memories. I’m talking of course about SPF. No other product category is more quickly brushed off as “not for me,” which is pretty crazy considering that good ones are more powerful anti-agers than any fancy serum or cream on the market. That’s a bold claim, right? Well it’s true. The best way to slow signs of aging is to use SPF every day.

A quick anecdote

Good friends know that I have a strange quirk: I’m an absolute maniac when it comes to sunscreen application. Stroll to the grocery store? I’ve obviously applied. Hitting the beach? I’ve got at least 3 bottles in my bag. So many people have laughed at my zinc-white beach bod that I’ve lost count, but I credit this consistency to a line I’ve heard again and again at weddings and reunions: “you look exactly the same.”

I struggled with my skin for many years, and I’ve got the acne scars to prove it. My frustration with my skin is what drove me to start Kura. But through it all I did one thing right: I used sunscreen early and often. The results are undeniable but so are the scientific facts, so let’s dive in.

The sun’s rays

To understand why sunscreen is so important it’s helpful to briefly talk about the two kinds of ultraviolet (UV) rays that the sun emits and why they can be so damaging.


When most people think about the sun’s effect on their skin they’re thinking about UVB rays. These are the rays that are responsible for sunburn. They’re present year-round and can vary in intensity based on your location and altitude.


Have you seen the image of the truck driver whose left side of the face looks about 20 years older than the right? It’s one of the best examples of the damage that UVA rays can cause.

Up to 90% of signs of aging, including fine lines, wrinkles and pigmentation are the result of UVA rays.

National Institutes of Health

UVA rays have a relatively longer wavelength and account for about 95% of the UV light that reaches our skin. They can pass through glass and penetrate deep into our skin, destroying its firmness and elasticity. Unlike UVB rays, you don’t feel UVA rays damaging your skin—you’ll only see the most significant effects years down the line.

The takeaway

The best way to slow signs of aging isn’t found in an anti-aging serum or moisturizer. That’s not to say that these products aren’t beneficial, but when it comes to signs of aging we believe the best offense is a good defense. That’s why the daily use of SPF can’t be beat.

Unfortunately, according to a 2019 Sun Safety Report, only 1 in 10 Americans actually does it. That means only a small fraction of people are defending themselves against a significant driver of signs of aging—not to mention major contributors to skin cancer. That’s why wearing SPF on a daily basis is a necessity…even if it’s cloudy or wintertime or if you’re just going for a short drive.

If you’re looking for an easy-to-wear, broad-spectrum SPF, we’re here to help. Complete a skin profile, let us know your budget, and we’ll help you find what’s right for you. For an all-in-one solution, check out our personalized routines. Each one is customized for your needs and delivers the essential pillars for great skin care: a thorough cleanse, the right hydration, and a daily SPF. Head to to get started.

For more quick tips on great skin care and finding the right ingredients for your needs, check out our posts on how to wash your face (you’re probably doing it wrong), ingredients that clog your pores and how to avoid skin-sensitizing products.

Other sources:

Katrina Moreno Lewis

Katrina is the Founder and CEO of Kura Skin