Sunscreen: Properly Protect Your Skin from UV Radiation

In 2021, we reported on sunscreen and UV protection. What remains? Sun protection isn’t just a summer beach theme, but the quiet foundation of good skincare: UVA and UVB act differently, filters work differently, and the best cream only helps if you apply enough of it.

Why the Sun Isn’t the Problem-It’s Overconfidence

Summer, sun, beach: the classic entry point was always simple-and still works. The most beautiful season of the year can quickly become taxing for the skin if sun protection is just an afterthought. The downside is that the sun feels good only after a while. It warms you up, lifts your mood, supports well-being, and fills your vitamin D stores. A small amount already suffices for that.

The problem starts where light becomes prolonged, direct exposure. According to the ingredient list, the portion of solar radiation that reaches the body through the atmosphere consists of invisible infrared radiation, visible light, and invisible UV radiation. This UV radiation is divided into UVA, UVB, and UVC. UVC is short-wave and reflected by the skin. UVA and UVB penetrate the skin.

Thus, sun protection shifts from being a beauty issue to a matter of respect. Not for complicated rules, but for your own skin. You don’t need to know every detail of dermatology to protect it. But you should understand why direct sunlight doesn’t belong on the skin indefinitely without restraint.

Good sun protection is unremarkable. Precisely because of that, it’s so easily underestimated-until the skin writes the bill.

UVA, UVB, and the Effects on the Skin

The ingredient list explains the differences clearly. UVB radiation triggers skin tanning, but also sunburns. Under its influence, the skin can thicken. UVA radiation penetrates even deeper and can impair important skin structures and the supportive framework there. The consequences can be acute, such as sun allergy or phototoxic reactions. Long-term effects include typical signs of skin aging: sagging skin, wrinkles, and age spots. In the worst case, UV radiation promotes skin cancer.

This sounds strict-but it’s not a plea against the sun. It’s a plea against negligence. The skin can do a lot, but it’s not an endless load-bearing material. Someone who spends the whole day outdoors, swims, sweats, or stays long in direct sunlight needs more than a little cream in the morning. Sun protection is a process throughout the day.

Especially since sunscreen often feels like a duty product, it pays off to take a closer look. There are different skin types, various textures, and different filters. Whoever finds the right product uses it more regularly. And exactly that consistency makes everyday protection stronger.

Which UV Filters Work in Sunscreen

UV filters in sunscreens are the active ingredient meant to filter out rays before they penetrate the skin. The old article distinguishes two groups: inorganic or physical filters, also known as mineral filters, and organic or chemical filters.

Mineral filters are based on inorganic compounds such as zinc oxide or titanium dioxide. They are described as physical in the ingredient list because they scatter and absorb UV light. Mineral filters cover the entire UV spectrum, i.e., both UVA and UVB. Organic or chemical filters are mostly carbon-based and can contain additional elements such as oxygen, hydrogen, nitrogen, halogens, or sulfur. Depending on the filtering substance, they primarily protect against UVB, although modern filters can also cover the UVA spectrum.

What does that mean practically? There isn’t one sunscreen for everyone. What matters is finding a product that suits your skin and using it in sufficient quantities. A cream that is theoretically perfect but sticks, burns, or never gets used loses out to a good, fitting, and regularly applied solution.

Eye Care, Sun Protection Factor and Right Amount

When buying, many first look at the sun protection factor. The best text recommends at least 30, better 50. It is also important to consider the level of protection against UVA and UVB rays, which are indicated by SPF or LSF. Additionally, it is also important to consider the skin tone.

Normal skin is neither too dry nor too oily and can tolerate sunscreens with alcohol. Sensitive skin needs as little irritating ingredients as possible, such as fragrance oils, essential oils, or alcohol, and benefits from moisturizing ingredients. Dry skin should also receive little fragrance and no alcohol, instead getting moisture-retaining products. Overly oily skin often benefits from light creams, lotions, emulsions, sprays, or gels and should not use alcohol-containing products.

The second point is the amount. Many people put on less sunscreen. For the face, a small spoon is recommended. On the body, the system helps: first an arm, then the other, followed by the upper and lower arms, back, abdomen, chest, décolletage, neck, and face. Depending on the body part, a spoon may be used up to an egg spoon for cream. The skin should remain dry, the hands clean.

If you want to avoid oily shine, you can apply a thin layer, wait a few minutes, and then apply another thin layer. After bathing, swimming, showering, or any water contact, always after applying sunscreen. Even water-based sunscreens lose some protection. Yes: the shelf life counts. Old sunscreens offer no reliable protection anymore.

Even in everyday life, this naturalness is helpful. Sun protection does not need to look like something that appears when you leave home and does not start immediately after the beach. Using a suitable product in the morning and taking it off after prolonged exposure makes skin care more practical. It’s not a big gesture; it’s just a repetition, helping to reduce wrinkles, spots, sunburn, and unnecessary stress for the skin.

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