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UVA vs UVB Rays

UVA vs UVB Rays: What is the Difference


We frequently hear the terms UVA and UVB rays when talking about sunscreen, but what exactly are they and how do they affect our skin? As a brand committed to providing effective sun care products, COOLA believes in keeping you informed about the crucial details. With that in mind, we’ve compiled this guide about UVA and UVB rays, their differences, and the importance of safeguarding your skin from sun damage.


Understanding UVA Rays

UVA rays, standing for "Ultra-Violet A," can be extra harmful. These types of UV rays have a longer wavelength and are able to penetrate deep into the skin cells, damaging the skin at the cellular level. UVA rays cause skin aging, leading to fine lines, wrinkles, and skin discoloration.1

The thing is, UVA rays are around all year long, regardless of whether it's a sunny summer day or a gloomy winter afternoon. UVA radiation can even pierce through clouds, which is why it’s important to protect your skin every day. 


Understanding UVB Rays

UVB rays, on the other hand, can't penetrate as deeply as UVA rays, but they definitely know how to make their presence known. These rays are responsible for the kind of painful sunburns you experience after a day under the sun without sun protection. 

But it's not just about sunburns; UVB rays are also linked to short-term skin damage. Too much exposure to these ultraviolet rays can leave your dry skin feeling irritated and red. And guess what? UVB rays are more common during the sunny months, making summer the peak season for sunburns. But UV exposure and UV wavelengths can still cause sun damage on bright, chilly days.


The Difference Between UVA and UVB Rays

Now that we know what UVA and UVB rays are individually, let's see how they stack up against each other. Picture this: UVA rays are stealthy and silently penetrate your skin year-round, while UVB rays are intense and make themselves known during the summer.

The result is two types of potential sun damage. UVA rays cause long-term skin damage and issues, such as premature aging, deep wrinkles, or even skin cancer, while UVB rays are the culprits behind red-hot sunburns. Ideally, you avoid them both.  


The Importance of Sun Protection

Now, you might be thinking, "With all these UV radiation risks, what can I do to protect my skin?" Don’t worry, COOLA has your back. The key to keeping your skin healthy is daily UVA and UVB protection. Rain or shine, summer or winter, it’s important to shield your skin from both.

The best defense is a broad-spectrum sunscreen that protects your skin from the harmful effects of both UVA and UVB rays. COOLA's sunscreens are not only effective but also infused with nourishing ingredients that your skin will love.

So, whether you're heading to the beach, taking a brisk winter walk, or just enjoying some chill time in your backyard, layer on organic sunscreen like your skin's health depends on it—because it does.


Stay Sun Smart

By understanding UVA and UVB rays, their differences, and the potential effects of not wearing sunscreen, you can enjoy the sun responsibly and take care of your skin. So stay healthy, protect your skin from UV radiation, and embrace the great outdoors with COOLA's sun care products. 


  1. D'Orazio, J., Jarrett, S., Amaro-Ortiz, A., & Scott, T. (2013). UV radiation and the skin. International journal of molecular sciences, 14(6), 12222–12248. https://doi.org/10.3390/ijms140612222