As the days get shorter and cooler weather rolls in, it is easy to pack away the sunscreen along with your summer swimwear. Don't let the clouds fool you. Dropping sun protection from your fall routine is a fast track to premature skin aging.
Even when the sun feels more distant, UV radiation continues to impact your skin daily. Understanding why SPF isn’t optional, no matter what season it is, can help you keep your skin protected year-round.
Why fall & winter sunshine still counts:
It is a common myth that cold weather or overcast skies eliminate the need for sun protection. Here’s why it’s not true:
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Cloudy days don’t block UV rays: Up to 80% of the sun’s ultraviolet (UV) radiation passes straight through cloud cover (Cleveland Clinic, 2023).
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Indoor exposure counts too: Sitting near a window at home or in the office doesn’t fully shield you from the sun. Glass blocks UVB rays, which are the rays responsible for causing sunburns, but allows UVA rays to pass through. These are the rays that can cause skin-aging and long-term skin damage. Additionally, standard office fluorescent lighting produces low levels of UV light, adding even more to daily exposure.
What happens when you skip SPF?
Neglecting sun protection can lead to several long-term consequences:
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Increased risk of skin damage and skin cancer: UV exposure directly damages cellular DNA, increasing the risk of skin cancer.
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Hyperpigmentation & dark spots: UV stimulates melanin production, causing discoloration, dark spots, and uneven tone.
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Worsening scars: Exposure to these rays darkens existing acne scars and marks, making them take significantly longer to fade.
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Premature fine lines & loss of elasticity: UV rays break down collagen and elastin, leading to a dry, leathery texture, and deeper wrinkles over time.
The benefits of wearing SPF:
Making SPF a non-negotiable step in your morning routine offers clear rewards:
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Delays signs of aging: Applying sunscreen every morning helps preserve your skin’s collagen, smoothing out fine lines and keeping wrinkles away.
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Evens skin tone: Helps fade existing hyperpigmentation and prevents new dark spots from forming.
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Protects against other stressors: High-energy visible light (HEV) light, also known as blue light, emitted from screens and devices adds to oxidative stress in the skin, which broad-spectrum routines help mitigate.
Elevating the effects of your SPF:
While SPF acts as your primary shield by reflecting or absorbing UV rays, pairing it with targeted antioxidant skincare takes your routine to the next level. UV exposure generates reactive oxygen species (ROS), also known as free radicals, that break down skin cells and accelerate aging.
This is where boosting your routine with high-performance skincare makes all the difference.
For the ultimate defense, pair your daily SPF with Delavie’s Aeonia Age Defying Serum. Formulated with Bacillus Lysate, an ingredient recognized as Certified Space Technology™, it delivers powerful antioxidant protection by neutralizing UVA-induced free radicals before they can damage your skin. In fact, our peer-reviewed research published in the scientific journal Cosmetics demonstrates that Bacillus Lysate actively boosts the SPF performance of both mineral and traditional sunscreens. Layered under your sunscreen every morning, it locks in hydration, strengthens your skin barrier, and maximizes your UV protection.
How to build your daily sun-protection routine:
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Cleanse & prep: Start with a gentle cleanser and toner, like our layerOne Clarifying Enzyme Cleanser and Toner, to remove surface impurities and prepare your skin for treatment without stripping moisture or disrupting the skin barrier.
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Treat: Apply our Aeonia Age Defying Serum to deliver potent antioxidant defenses and target fine lines, wrinkles, and dark spots.
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Moisturize: Follow up with a hydrating moisturizer to lock in hydration and reinforce barrier function.
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Protect: Finish every morning with a broad-spectrum SPF 30 or higher applied generously. Squeeze a line of sunscreen along your index and middle fingers using the two-finger rule to ensure full coverage for your face, neck, and hands.
Protecting your skin isn't seasonal; it is a daily commitment to your overall skin health. By pairing broad-spectrum sunscreen with advanced antioxidant care, you keep your skin healthy, radiant, and youthful no matter what the weather looks like outside.
SOURCES:
Cleveland Clinic. (2023, June 28). Sunscreen: Why you should wear it every day. Cleveland Clinic Health Essentials. https://health.clevelandclinic.org/why-you-should-wear-sunscreen-every-day
Colorescience. (2024, May 15). 10 effects of not wearing sunscreen. Colorescience. https://www.colorescience.com/blogs/blog/effects-of-not-wearing-sunscreen
Healthline. (2025, February 10). Everything you need to know about sunscreen. Healthline. https://www.healthline.com/health/sunscreen-explained#benefits
Landry, K. S., Young, E., Avery, T. S., & Gropman, J. (2023). Efficacy of a Novel SPF Booster Based on Research Aboard the International Space Station. Cosmetics, 10(5), 138. https://doi.org/10.3390/cosmetics10050138
