SUN PROTECTION: WHY SPF IS ESSENTIAL 365 DAYS A YEAR
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Sun Protection: Why SPF is essential 365 days a year
You probably apply sunscreen when you go to the beach. But what about a cloudy Tuesday morning in November? Or if you work indoors all day, behind a window? Sun protection isn't just for summer. UVA radiation — the radiation that contributes most to skin aging — is present all year round and penetrates clouds, glass, and even thin clothing. In this article, we explain why daily SPF is one of the most powerful steps you can take for healthy skin, what type of protection suits you, and what products we offer for it.
In short:
• UVA radiation is present all year round and contributes to approximately 80% of visible skin aging
• SPF protects against sunburn (UVB) and premature aging (UVA)
• Choose at least SPF 30 with broad-spectrum UVA/UVB protection
• Protection is also necessary behind glass and on cloudy days
• View our sun protection collection
Contents
1. Why is SPF so important for your skin?
2. The difference between UVA and UVB radiation
3. How to choose the right sun protection?
4. Sun protection in our assortment
5. Integrating SPF into your daily routine
6. Common mistakes in sun protection
7. Frequently asked questions
Why is SPF so important for your skin?
Sunlight consists of different types of radiation, including UVA and UVB. Both can cause damage to your skin, but in different ways. UVB radiation is responsible for sunburn — that red, painful skin after an afternoon in the sun. UVA radiation works more subtly: you don't feel it, but it penetrates deep into the skin and breaks down collagen and elastin. These are the proteins that keep your skin firm and resilient.
The insidious thing about UVA is that it's always present. On cloudy days. In winter. Behind the office window. A large part of visible skin aging — think wrinkles, sagging skin, and pigment spots — is associated with cumulative exposure to UV radiation over the years. Daily sun protection is therefore not just for "good weather," but a fundamental part of any skincare routine.
Did you know? UVA radiation penetrates clouds and glass. Even if you work indoors by the window, your skin is exposed to radiation that contributes to skin aging.
The difference between UVA and UVB radiation
To make a good choice in sun protection, it helps to understand the difference.
UVB radiation primarily affects the upper layer of the skin. It is the main cause of sunburn and plays a role in the development of skin cancer. UVB is strongest in summer and around midday and is largely blocked by glass.
UVA radiation penetrates deeper into the skin and is fairly constantly present throughout the year. It contributes to premature skin aging, pigment spots, and loss of firmness. UVA does pass through glass — which is why you can be exposed indoors.
Good sunscreen protects against both types of radiation. Always look for the term "broad-spectrum" or "UVA/UVB protection" on the packaging. The SPF value on a product primarily indicates the degree of UVB protection. For UVA protection, it is important that the product also has a high UVA rating — this is indicated by the UVA logo in a circle on European products.
How to choose the right sun protection?
The choice depends on your skin type, daily activities, and the season. Some guidelines:
SPF 30 is the minimum for daily use. SPF 30 filters approximately 97% of UVB radiation. SPF 50 filters about 98%. The difference is small, but for people with fair or sensitive skin, it can provide that little bit of extra protection.
Chemical versus mineral. Chemical sunscreens absorb UV radiation and convert it into heat. Mineral filters (such as zinc oxide and titanium dioxide) reflect radiation. Mineral filters are generally milder and are therefore often recommended for sensitive or reactive skin.
Texture and wearability. The best sunscreen is the one you actually use every day. Therefore, choose a texture that feels good under makeup or as a day cream. A sticky or greasy SPF that you skip because of it doesn't protect.
Sun protection in our assortment
At Shopjemooi, we have deliberately chosen sun protection from brands that combine protection with skincare. Here's an overview by brand and need.
Comfort Zone Sun Soul — anti-aging sun protection
Comfort Zone Sun Soul collection
The Sun Soul line from Comfort Zone offers UVA/UVB protection with an anti-aging effect. The formulas contain photostable filters that maintain their protection during sun exposure. Water-resistant, fragrance-free (in the Face Cream), and formulated with care for the aquatic environment. Available as Face Cream SPF30 and SPF50+ for the face, Cream SPF30 and SPF50 for the body, and a Family Face & Body Cream SPF50+ which is also suitable for children's skin from 3 years old.
ASAP Moisturising Daily Defence SPF50+ — daily hydration with protection
ASAP sun protection
ASAP Moisturising Daily Defence SPF50+ combines broad-spectrum UVA/UVB protection with hyaluronic acid and niacinamide (vitamin B3). Hyaluronic acid helps keep skin hydrated, while niacinamide calms and supports elasticity. Contains zinc oxide as a mineral sun filter. Suitable as a day cream or over your serum.
Cell Fusion C Rejuve Sunscreen SPF50 — mineral for sensitive skin
Cell Fusion C sun protection
Cell Fusion C Rejuve Sunscreen 100 SPF50 uses mineral UV filters (zinc oxide and titanium dioxide) and is developed for sensitive or reactive skin. It absorbs quickly, leaves no white cast, and is also suitable after treatments such as microneedling or peeling. A good choice if your skin reacts sensitively to chemical sun filters.
Casmara — sun protection as part of skincare
Casmara Sun collection
Casmara offers sun protection products that seamlessly complement their professional skincare lines. Available in different SPF levels and suitable for daily use as part of a complete routine.
Integrating SPF into your daily routine
Sun protection is always the last step of your morning routine — after cleanser, serum, and day cream. Here's a simple schedule:
Step 1 — Cleanse. Start with a mild cleanser to make your skin clean and fresh.
Step 2 — Serum. Apply a serum that suits your skin's needs. Vitamin C works well during the day as an antioxidant and provides extra protection against free radicals.
Step 3 — Day cream or moisturizer. Hydrate your skin. If you apply SPF separately, choose a light day cream without SPF to prevent product buildup.
Step 4 — Sun protection. Apply a generous amount of SPF to your face, neck, and décolletage. Use about half a teaspoon for the face alone. Don't forget your ears and the backs of your hands.
Step 5 — Reapply. For prolonged outdoor stays, reapply SPF every two hours. For daily office work, once in the morning is usually sufficient, unless you sit by a window a lot or go outside in between.
Tip: Are you using a product with retinol in the evening? Then SPF is extra important during the day. Retinol temporarily makes the skin more sensitive to UV radiation.
Common mistakes in sun protection
Applying too little. Most people use only half the recommended amount. This significantly reduces the actual protection. Be generous — better a little too much than too little.
Only applying in summer. UVA radiation is present all year round. Daily SPF is just as important in January as in July.
Thinking that makeup with SPF is sufficient. Foundation or day cream with SPF15 provides limited protection. You rarely apply enough to achieve the stated SPF value. Always use a separate sun protection product as a base.
Skipping SPF for darker skin tones. Darker skin naturally has slightly more protection against UVB, but is not protected against UVA. Premature skin aging and pigment changes occur in all skin tones.
Forgetting to apply to the neck, hands, and ears. These areas are exposed daily but are often overlooked. The skin on the hands and neck often shows the first signs of aging.
Frequently asked questions about sun protection
Do I really need sunscreen in winter?
Yes. UVA radiation is present all year round and penetrates clouds. In winter, UVB intensity is lower (meaning less chance of sunburn), but UVA continues to stress the skin. Daily SPF helps to limit skin aging and pigment damage, regardless of the season.
What is the difference between SPF 30 and SPF 50?
SPF 30 filters approximately 97% of UVB radiation, SPF 50 about 98%. The difference is small, but for light, sensitive, or treated skin, SPF 50 can be useful. More important than the number is that you apply enough and reapply regularly during prolonged outdoor stays.
Can I use my day cream with SPF instead of a separate sunscreen?
A day cream with SPF offers some protection, but most people do not apply enough day cream to achieve the full SPF value. For reliable protection, a separate sun protection product is recommended, especially if you use active ingredients such as retinol or vitamin C.
Which SPF is suitable if I have sensitive skin?
For sensitive or reactive skin, mineral sun filters (zinc oxide, titanium dioxide) are generally better tolerated. Cell Fusion C Rejuve Sunscreen SPF50 has been specifically developed for this. The fragrance-free Comfort Zone Sun Soul Face Cream is also a good option.
Do I need to apply SPF even if I work from home?
If you are sitting by a window, yes. UVA radiation passes through glass. If you spend all day in a room without daylight, the necessity is less great. But it's a good habit to include SPF in your morning routine, so you're always protected when you do go outside.
Read also
Curious about how to build your complete skincare routine? Read what really works for skin improvement. Or discover how to adjust your routine after 40. Do you have sensitive skin? Then read why Cell Fusion C is ideal for sensitive skin.
Free shipping
At Shopjemooi.nl, you benefit from free shipping in the Netherlands from €40 and in Belgium from €75. Do you need advice on which sun protection suits your skin? Feel free to contact us — we're happy to help.
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Conclusion
Sun protection is not a seasonal product — it's a fundamental step that completes every skincare routine. UVA radiation is present all year round and contributes to wrinkles, pigment spots, and loss of firmness. With good SPF, you protect your skin not only from sunburn but also from the daily, invisible damage that accumulates over the years. Choose a product that suits your skin type, apply it every morning as the last step of your routine, and be generous. Your skin will thank you.
