PHOTOAGING
It is estimated that 80 to 90% of skin aging is caused by repeated exposure to visible light and UV rays, whether natural or artificial. This induced aging is called photoaging.
UVB rays cause sunburn and direct DNA damage to the skin. This can lead to skin conditions, including skin cancer.
UVA rays represent 95% of the solar radiation that reaches us. They penetrate deeper into the dermis and are more dangerous because they are not stopped by the epidermis, clouds, or even glass. Once they reach the skin, they attack cellular structures, producing highly aggressive free radicals. Supporting fibers such as collagen and elastin are damaged over time. Therefore, for long-term prevention, it is important to wear sunscreen daily and throughout the year.
Although UV indexes are higher in summer, the skin on the face receives more radiation throughout the rest of the year. According to a study conducted in the UK, protecting the skin every day for 10 years can halve skin aging!
The damages caused by photoaging include:
- Formation of wrinkles
- Decreased skin elasticity due to collagen fiber damage
- Appearance of pigmented spots
- Disruption of the integrity of dermal capillaries and formation of spider-like vascular structures
- Excessive dryness and cracking of the skin
The most commonly affected areas of photoaging are the exposed face, neck, décolleté, hands, and shoulders.
HOW TO PROTECT YOURSELF FROM PHOTOAGING?
Different types of sunscreens are designed to form a barrier that protects the skin from damage. UV protection products are made up of a diverse complex of ingredients that have properties to absorb or scatter harmful rays.
Sunscreen products should have the following effects:
- Neutralization of the action of free radicals
- Protection against UVA and UVB rays
- Blocking the access of free radicals
- Regeneration of damaged cells and tissues
- Delivery of a certain amount of antioxidants
- Safe use, without fragrances, harmful substances, and chemical additives