What you need to know about UV radiation
Shining a Light on UV Safety: What You Should Know
July is UV Safety Awareness Month, making it the perfect time to learn how ultraviolet (UV) radiation impacts your skin—and how you can protect it. At Modern Aesthetics, we believe education is the first step toward healthy, glowing skin. Let’s break down what UV radiation is, how it affects your body, and the biggest myths that may be putting your skin at risk.
The Basics: What is UV Radiation?
UV radiation is a form of energy from the sun. There are three types:
UVA (Ultraviolet A)
Wavelength: 320–400 nm
What it does: Penetrates deep into the skin and contributes to aging (wrinkles, sunspots).
Risk: Damages collagen and increases skin cancer risk over time.
UVB (Ultraviolet B)
Wavelength: 290–320 nm
What it does: Damages the outer layers of skin and causes sunburns.
Risk: Directly alters DNA in skin cells—strongly linked to skin cancer, including melanoma.
UVC (Ultraviolet C)
Wavelength: 100–290 nm
What it does: Fortunately, nothing to worry about—UVC rays are blocked by the ozone layer and never reach the earth’s surface.
How UV Rays Affect Your Skin
Short-Term Effects
Sunburn: Mostly caused by UVB rays—redness, swelling, and peeling are signs of damaged skin.
Tanning: Triggered by UVA rays—your skin produces melanin to defend itself. That “glow” is actually a sign of injury.
Long-Term Effects
Premature Aging: UVA rays destroy collagen and elastin, leading to fine lines, wrinkles, and sagging skin.
Skin Cancer: Cumulative exposure to both UVA and UVB rays increases your risk of skin cancers like basal cell carcinoma, squamous cell carcinoma, and melanoma.
Eye Damage: UV exposure can also lead to cataracts and other eye issues.
Common UV Myths—Busted
“It’s cloudy—I don’t need sunscreen.”
False. Up to 80% of UV rays still reach your skin through clouds.“A base tan protects me from burning.”
False. A tan is a sign of skin damage. It only provides minimal protection (like SPF 3).“Darker skin doesn’t need sunscreen.”
False. Melanin offers some protection, but not enough. Everyone is at risk for UV damage and skin cancer.“I only need sunscreen at the beach or pool.”
False. Everyday sun exposure adds up—walking the dog or sitting by a window still puts you at risk.“Sunscreen isn’t necessary indoors.”
False. UVA rays can pass through windows, so protection is still important inside—especially if you’re near natural light.
Protecting Your Skin, Every Day
This UV Safety Awareness Month, make a commitment to sun protection:
Use a broad-spectrum sunscreen (SPF 30+)
Reapply every 2 hours (or after sweating/swimming)
Wear hats, sunglasses, and UPF clothing
Seek shade, especially between 10 AM and 4 PM
Need help choosing the right SPF or treating sun damage? Our skincare experts are here to help.
Book a consultation today and stay sun-safe all summer long!