Sunrays stimulate the production of vitamin D and melanin. They have a positive effect on skin diseases such as psoriasis and eczema and they stimulate the blood circulation. Moreover, the sun influences our mood in a positive way.
But sunrays can also be harmful, especially to the skin. The sun is responsible for 90% of skin-ageing symptoms such as wrinkles, pigmentation and sagging.
Sunrays contain 3 types of UV rays; UVA, UVB and UVC.
UVC rays are the most harmful, but they are stopped by the ozone layer.
- The UV radiation that does reach us consists for 95% of UVA and for 5% of UVB. These rays affect the skin in different ways.
- UVA rays have a long wave, so they penetrate deep into the skin so they can affect collagen and elastin. Moreover, UVA is present throughout the year, even when it is cloudy and during autumn and winter. UVA plays an important role in the development of skin cancer and skin ageing.
- UVB rays are more powerful than UVA rays but because they have a shorter wave they do not penetrate the skin as deeply. Excessive exposure to UVB rays causes burning symptoms; redness.
Sun Protection Factor (SPF)
The Sun Protection Factor or SPF has a number. Contrary to popular belief, the SPF figure does not reflect how much longer a person can stay in the sun without getting sunburned. Moreover, it only says something about the extent to which the product protects against UVB rays, not UVA rays. Therefore, when buying a sunscreen product, it is important to check whether the product also offers protection against UVA rays.
SPF15 offers 93.3% protection, SPF30 offers 96.6% protection, SPF50 offers 98% protection. 100% protection does not exist.
Henriëtte Faroche Soleil Intensif solar products offer protection against both UVA and UVB rays. So you know immediately that you have made a good choice.
How often and how much do I apply?
Research has shown that we often apply too little product to achieve the indicated SPF. An SPF20 that has been applied too thinly, for example, only protects as SPF10 or even less.
To make sure you are applying enough product, you can use the following guideline: half a teaspoon product for the face and about 6 tablespoons for the entire body.
Regardless of the protection factor, re-apply sunscreen every 2 hours. The advice of the American Academy of Dermatology is to use at least one SPF 15 every day, even during the autumn or winter months. During the summer months or after an intensive treatment, a higher SPF is recommended.
The Henriëtte Faroche Soleil Intensif series of sunscreen products offer protection against both UVA and UVB rays. This way you know immediately that you have made a good choice.
Henriëtte Faroche products for home use
- Sun protection SPF 20 – anti ageing
- Sun protection SPF 30 – invisible spray
- Sun protection SPF 50+ - Very high protection
- Aftersun – hydrating milk