The Sun Protection Factor (SPF) indicates by which factor the skin’s natural protection time against UVB rays is extended through the use of a sunscreen product.
Sunscreens support the skin’s natural self-protection. They should always provide broad-spectrum protection against UVA, UVB, and IR radiation. The UV filters used are divided into organic and mineral filters.
UVA stands for Ultraviolet A. This long-wave ultraviolet radiation penetrates deep into the skin and can accelerate skin aging. UVB stands for Ultraviolet B. This radiation has a shorter wavelength and is primarily responsible for sunburn.
The cosmetics industry has introduced a standardized symbol (UVA in a circle). This symbol may appear on a sunscreen product if the UVA protection factor is at least one third of the UVB protection factor (SPF) stated on the product. For a product with SPF 50, the UVA protection factor is therefore approximately 17 or higher.
With Daylong™, UV protection is effective immediately after application. Sunscreen should be applied generously to dry skin about 20 minutes before going outdoors to prevent transfer onto clothing and dissolution while swimming. Make sure that particularly sensitive and often forgotten areas such as the lips, nose, eye area, and ears are adequately protected.
After injuries or cosmetic treatments, the affected skin is especially sensitive and prone to increased pigmentation when exposed to the sun. Therefore, these areas require very high sun protection, such as Daylong™ Sun-Allergic & Hypersensitive Face Lightweight Fluid SPF 50+.
The risk of a reduction in vitamin D production from using sunscreen is unlikely. This is because products with a high SPF do not completely block UV radiation. In addition, the amount of sunscreen typically applied in daily life is usually insufficient, and many areas of the skin often remain forgotten or inadequately covered when sunscreen is applied.
To calculate which sunscreen is suitable for your skin type, the skin’s natural protection time must be multiplied by the SPF. Example: 10 minutes of natural protection time × SPF 30 = 300 minutes of theoretical protection. However, this value does not reflect the actual protection time, as most people apply less sunscreen than recommended. In practice, only about half of the calculated time should be considered a realistic guideline.
An adult needs on average about 36 g of product per application for the entire body (equivalent to about 6 teaspoons of 5 ml each).
Shade from trees, umbrellas, etc. only provides partial protection, as radiation is also reflected from the ground. UV rays can still reach the earth even when the sky is cloudy.
Clothing provides some protection against UV radiation, but the degree of protection depends on the material and how it is processed. Despite wearing clothing, the use of sunscreen is still recommended.
Tanning results from increased pigment production caused by UV radiation. Although moderate tanning may not necessarily be harmful, there is no such thing as a “healthy tan.” Everyone should treat their skin with care.
During physical activity, it is important that sweat can evaporate to cool the body. In cases of heavy sweating, sunscreens with low lipid (fat) content that are water-resistant and sweat-resistant should be preferred.
UV rays accelerate natural skin aging by damaging connective tissue, which reduces skin elasticity. UV radiation also promotes wrinkles and age spots. Learn more here.
The sun dries out the skin. Therefore, the skin should be cared for after sun exposure to restore lost moisture. For example, Daylong™ Cooling Hydration & Ultra Care Calming Lotion, enriched with glycerin, dexpanthenol, and vitamin E, cares for sun-stressed skin and provides moisture.
Liposomal sun protection is specifically deposited in the outermost layer of the skin using carrier systems known as liposomes. The advantages:
- Improved distribution of UV filters
- Enhanced adhesion of UV filters
- Increased stability of UV filters
Micropigments are inorganic or organic, colored or colorless pigments that are practically insoluble in the carrier substance (e.g., cream). Pure micropigments are found in mineral sunscreens, such as titanium dioxide. They provide effective UVA and UVB protection by reflecting and partially absorbing sunlight.
Parabens are chemical preservatives used in cosmetics to make products last longer. However, they may cause skin irritation or allergies in sensitive individuals. Daylong™ products do not contain parabens.
Microplastics are plastics that are solid, insoluble, particulate, non-biodegradable, and smaller than 5 millimeters. This includes, for example, microbeads often found in exfoliating products. Microplastics as defined above are not contained in Daylong™ products.
The term “nano” reflects the size of certain particles. Particles defined as nanoparticles have a diameter of less than 100 nm. All cosmetics containing nanomaterials are subject to mandatory labeling on the packaging (NANO). Some Daylong™ products contain UV filters with nanoparticulate components. These include components of the chemical filter Methylene Bis-Benzotriazolyl Tetramethylbutylphenol (Tinosorb® M) as well as mineral filters in the form of the mineral pigments titanium dioxide and zinc oxide. Nano-scale sunscreens are very easy to spread on the skin, encouraging more generous application. The UV filters used in our sunscreen products are considered safe for human health.