Why to use Sunscreen on a daily basis, even in winter | Altruist

Why Applying Sunscreen Daily Is So Important
Many people associate sunscreen only with hot summer days and beach holidays. However, daily sun protection is essential—even in autumn and winter. UV radiation is always present, even when the sun hides behind clouds or temperatures drop. Using sunscreen every day not only helps prevent premature skin aging, but it also reduces the risk of skin cancer. Here’s why sun protection is necessary, no matter the season.

What Does UV Radiation Do to Your Skin?
At Altruist, protecting the skin is at the heart of everything we do. Our brand was founded with a clear mission: to help prevent skin cancer by making high-quality, affordable sun protection accessible to everyone.

UV radiation can damage the skin in multiple ways. Prolonged exposure may lead to premature aging, pigmentation spots, sagging skin, and even skin cancer.

• UVA radiation penetrates deep into the dermis, breaking down collagen and elastin, which causes fine lines and wrinkles.

• UVB radiation causes sunburn and significantly increases the risk of skin cancer.

Damage often builds up invisibly from a young age and may only become noticeable years later.

Research shows that up to 80% of visible skin aging is caused by sun exposure. This underlines the importance of consistent sun protection. Your skin is exposed to UV radiation far more often than you might realize—even on cloudy days or indoors behind windows.

UVA vs. UVB
There are two main types of UV radiation: UVA and UVB.

• UVA is responsible for aging the skin. It’s present from sunrise to sunset, regardless of the weather, and can even penetrate glass.

• UVB causes sunburn and plays a major role in the development of skin cancer. Its intensity varies by season and location, but it can still cause damage even in winter.

An effective sunscreen protects against both types of radiation. Look for the label “broad spectrum”, which means it guards against UVA and UVB rays.

Protection in Winter
Many people underestimate the power of the sun in winter. While UVB radiation drops in colder months, UVA remains just as strong. Snow and ice can reflect up to 80% of UV rays, increasing your exposure. This is especially important during winter sports or outdoor walks. Even on cloudy days, around 80% of UV radiation penetrates the cloud cover—meaning your skin is almost always exposed, even without direct sunlight.

Daily Use & Reapplication
For optimal protection, sunscreen should be applied every morning as the final step in your skincare routine. A generous amount is key—about half a teaspoon for your face and neck. Don’t forget commonly missed areas like your ears, neck, hands, and the tops of your feet if they’re not covered.

Reapply every two hours when outdoors, or more often if you’re sweating or swimming. Even brief exposure—like grocery shopping or driving—adds up and contributes to long-term skin damage.

Best SPF for Daily Use
Altruist offers a wide range of dermatologist-developed sunscreens that provide broad spectrum protection against UVA and UVB. They are ideal for daily use and suitable even for sensitive skin.

For everyday protection, dermatologists recommend at least SPF 30. SPF 50 provides extra protection, especially for people with fair skin, a history of skin cancer, or those expecting high sun exposure.

Choose a lightweight, non-sticky formula that feels comfortable on the skin and integrates easily into your daily routine. Sunscreens with added antioxidants also protect against free radicals, which can contribute to aging. Altruist’s products meet these criteria: effective, comfortable, and suitable for daily use—even for the most sensitive skin.

Tips for Wearing Sunscreen Under Makeup
Thanks to their light, non-greasy formulas, Altruist sunscreens are perfect for use under makeup. They absorb quickly and leave no white cast, making them an ideal base for your daily makeup routine. Sunscreen and makeup work well together. Use our lightweight sunscreen as a base, and refresh your protection throughout the day with SPF powders or sprays—no need to remove your makeup.

Protecting Your Skin, Every Day
Daily sun protection is the most effective way to prevent premature skin aging and reduce your risk of skin cancer. It takes minimal effort but delivers long-term benefits for your skin’s health and appearance. By making sunscreen a fixed part of your morning routine, you’re investing in your skin’s future—regardless of season or weather.

Altruist, developed by British dermatologist Dr. Andrew Birnie, offers high-quality and affordable sunscreens with proven effectiveness against UVA and UVB radiation. With a mission to help prevent skin cancer, Altruist combines dermatological expertise with effective formulas suitable for everyday use—even for sensitive skin.

Discover our full range and protect your skin with confidence, every single day.