Understanding UV A simple guide to your skin
Ultraviolet radiation (UV) is invisible energy. It travels from the sun to earth in different wavelengths. You cannot see or feel it, yet this energy interacts with your skin every single day.
Understanding how these wavelengths behave is the first step to maintaining long-term skin health. Know what reaches your skin. Build a daily routine that provides real, lasting defense.
UVA - The rays that reach deep
UVA rays have the longest wavelengths. According to the World Health Organization, they account for approximately 95% of the UV radiation that reaches the Earth's surface.
These rays penetrate deeply. They are primarily responsible for changes in skin tone and texture over time. By breaking down the structural foundations of your skin, these rays impact firmness.
UVA rays are constant. They maintain their strength all year round. They easily penetrate thick cloud cover and pass through the glass of your office or car windows.
Protecting against UVA preserves collagen. Supports firmness.
UVB - The rays that burn
UVB rays have shorter wavelengths. They do not penetrate as deeply as UVA rays, but they carry more energy. These rays primarily affect the outermost layers of your skin.
UVB is the main cause of redness and sunburn. The intensity fluctuates. Stronger at higher altitudes and closer to the equator. While UVB levels drop slightly in colder months, surfaces like water and snow can reflect these rays, effectively doubling your exposure.
Visible light and blue light
Beyond invisible UV radiation, visible light also impacts your skin. Recent dermatological research shows that high-energy visible light, often referred to as blue light, can contribute to uneven skin tone.
This light comes from natural daylight and the digital screens we use every day. Consistent daily protection helps defend against the pigmentation changes linked to this modern exposure.
Broad spectrum, explained
A high-quality SPF must defend against the full range of solar energy. This is what "broad-spectrum" means. It ensures your skin is shielded from both the deep-penetrating UVA rays and the surface-burning UVB rays.
At Twelve Seven, our formulas are developed in Switzerland and made in Italy. We designed them to deliver comprehensive, photostable protection. Each drop is peptide-powered and antioxidant-rich, helping to defend against environmental stress while nourishing the skin.
Our formulas are featherlight and invisible. They blend into your skin to provide an effortless layer of defense.
Make protection your daily ritual
Skin health relies on one fundamental principle. Consistency.
UV exposure happens every day. Your defense must be active every day.
When you treat daily protection as non-negotiable, you support your skin's natural resilience. Not just about avoiding a burn. About building a habit that works with you.
Always.
Discover Twelve Seven today. Shop the ritual and experience a new standard in effortless daily protection.
Ready to find the right formula for your unique skin? Take your SkinSnap and personalized skin forecast.
