Whether you’re heading to the lake, hiking through the Chattanooga mountains, or just running errands around town, sunscreen should always be part of your daily skincare routine. Following expert sunscreen tips means understanding that sunscreen is essential not just in summer but year-round. At The DERM Center, we’re here to provide sunscreen tips and remind you that protecting your skin from UV damage is essential year-round—and that includes checking your sunscreen’s expiration date.
Why Sunscreen Is Essential, Even in Winter
A common misconception is that sunscreen is only needed when it’s hot and sunny. But the truth is, ultraviolet (UV) rays are present 365 days a year, regardless of temperature or cloud cover. These invisible rays can still cause skin damage—even in cold or overcast conditions. These facts are key in the expert sunscreen tips we share for effective skin protection.
Here’s why sunscreen is just as important in the winter:
-
UV Rays Don’t Take a Break
Harmful UV rays that contribute to skin aging and skin cancer are present year-round. Up to 80% of UV rays can penetrate clouds, meaning your skin is still at risk even on gray, chilly days. -
Snow Reflects UV Radiation
Winter activities like skiing or snowboarding increase UV exposure because snow reflects sunlight, doubling your exposure from above and below. -
Sun Exposure Is Cumulative
Damage from the sun adds up over time. Even brief exposure during winter walks or daily errands around Chattanooga can lead to long-term skin issues like hyperpigmentation, fine lines, and more serious conditions such as skin cancer.
The Importance of Checking Sunscreen Expiration Dates
Now that we’ve established that year-round sunscreen use is crucial, let’s discuss a step many people overlook: expiration dates.
Like any skincare product, sunscreen has a shelf life. Over time, its active ingredients degrade and become less effective, leaving your skin vulnerable to UV damage.
Why Expiration Dates Matter:
-
Reduced Effectiveness
Expired sunscreen may not properly block UVA and UVB rays, meaning you’re getting less protection than you think. -
Improper Storage Can Degrade Product
If your sunscreen has been stored in high heat—like a hot car or humid bathroom—its shelf life could be shortened, even before the printed expiration date. -
Expired Products Can Cause Skin Issues
Using expired sunscreen can result in skin irritation, breakouts, or clogged pores due to chemical breakdown and bacterial growth.
Pro Tip from The DERM Center: Sunscreen typically lasts 2–3 years. Always check the date before summer and winter begin. If there’s no label, it’s safest to toss it and buy new.
Best Practices for Applying Sunscreen
To get the most out of your sunscreen and keep your skin healthy in every season, follow these dermatologist-recommended sunscreen tips:
-
Apply the Right Amount
Use about one ounce (a shot glass) for full-body coverage and a nickel-sized amount for the face. Don’t skip high-risk areas like the ears, neck, and back of the hands. -
Reapply Often
Even in winter, reapply every two hours, especially if sweating, wiping your face, or being active outdoors. -
Use Broad-Spectrum Protection
Look for sunscreens labeled “broad-spectrum”, which protect against both UVA (aging) and UVB (burning) rays. -
Choose the Right SPF
An SPF of 30 or higher is best for daily wear. For prolonged outdoor activity—such as hiking Signal Mountain or boating on the Tennessee River—opt for SPF 50+.
Final Thoughts: Protect Your Skin in Every Season
No matter the weather in Chattanooga, sunscreen should be part of your everyday routine. At The DERM Center, we emphasize preventive dermatology—because the best way to treat sun damage is to avoid it in the first place.
Make it a habit to:
-
Apply sunscreen daily
-
Check expiration dates
-
Choose broad-spectrum protection
Your skin is your body’s largest organ—protect it accordingly. For more personalized skincare guidance, sunscreen tips, or to find out which sunscreen products are best for your skin type, schedule a consultation with a provider at The DERM Center in Chattanooga today.
