What are the differences between UVA and UVB?
UVB rays are responsible for tanning and sunburn ("B for burn") but also for inflammation, and they promote skin aging and skin cancer. They remain in the superficial layers of the skin. The intensity of UVB rays varies according to the seasons, the time of day and the geographical location. It is therefore difficult to recommend periods and durations of exposure. UVB rays (like UVA light) are reflected in sand, water and snow (80% of UVB rays are reflected by snow!). UVB rays also cause more damage at high altitudes, which is why if you spend your holidays in the mountains, you should wear sunscreen.
UVA rays are one of the
main causes of photoaging (to remind us, we remember "A for age"). Unlike UVB rays, they do not depend on the seasons. They are there all year round, all day long, even on cloudy days and when the weather is not nice. UVA rays are responsible for the degradation of collagen and elastin necessary for the good structure and firmness of the skin. They participate in the excess production of free radicals, which panic the skin and cause premature aging (wrinkles, spots, sagging). By reaching the deep layers of the skin, UVA rays promote the appearance of skin cancers.
Another difference is that UVA rays pass through glass, whereas UVB rays do not. Unless our office window or car windows are specially treated to filter UVA rays, our skin is exposed to them, which is why it is essential to wear sunscreen every day, even if we don't feel like we are.
How to choose your sun care?
Sun care products must contain at least one UVB filter and one UVA filter to be effective. UVB rays are the most harmful to the skin, as they are responsible for sunburn. UVA rays are the most harmful to health, as they are responsible for premature skin aging. To benefit from optimal protection against UVA and UVB rays, opt for a sunscreen with the "broad spectrum" label, which means that it has been able to obtain this label following the tests it has passed.
The
Cell Protector SPF 50+ PA++++ from the IOMA brand is a protective facial treatment, anti UVA/UVB with a broad spectrum. The PA++++ index is one of the highest possible levels of protection against UVA. It can be used alone or in addition to a day cream as soon as the UV index is higher than 3.
Cell Protector can be applied:
- in the morning, on bare skin or after your day cream, to be perfectly protected
- for touch-ups during the day for perfect protection.
- or just on the skin at the beach
- It can also be applied to the décolleté and hands for more complete protection.
Moisturize your skin well
In summer, we continue our skin's beauty ritual by adapting it to our environment. We do not deviate from
skin hydration with a specific cosmetic treatment, which we apply morning and evening. The more hydrated our skin is, the more it is prepared for exposure to the sun. The ultimate summer protection for the skin is of course sun protection. Every morning, after the usual care, we apply a sun protection treatment with an index adapted to our skin type.
In summer, don't forget the weekly beauty ritual of exfoliation and a moisturizing mask, to first free the skin of dead cells and regenerate it.
Exfoliate your skin well
Exfoliation is the right step for a luminous tan! Exfoliation is also highly recommended in the summer because it allows you to renew your skin before letting your skin tan: exfoliation stimulates cell renewal and eliminates impurities present on the skin. Exfoliation promotes a long-lasting tan, but be careful not to overdo it: exfoliating your skin more than twice a week can dry it out and make it vulnerable to the sun.
