Betekenis van:
sun protection factor

Voorbeeldzinnen

1. Labelled sun protection factor
2. However, a product with sun protection factor 15 absorbs 93 % of UVB radiation, and a product with sun protection factor 30 absorbs 97 % of UVB radiation.
3. Therefore, the category should be labelled at least as prominently as the sun protection factor.
4. Another example is a sunscreen product which displays ‘high protection’ (sun protection factor of 30) on the label but provides only ‘low protection’ (factor of 6).
5. a UVB protection of sun protection factor 6 as obtained in application of the International Sun Protection Factor Test Method (2006) or an equivalent degree of protection obtained with any in vitro method;
6. Therefore, although the sun protection factor refers only to protection against the radiation which causes erythema (mainly UVB radiation), sunscreen products should contain both UVB and UVA protection.
7. ‘sun protection factor’ means the ratio of minimum erythemal dose on skin protected by a sunscreen product to the minimum erythemal dose on the same unprotected skin;
8. A wide variety of numbers used on labels for indicating the sun protection factor does not support the aim of making claims that are simple and meaningful.
9. Scientific findings show that certain biological damage to the skin can be prevented and reduced if the ratio of the protection factor measured in the persistent pigment darkening test (i.e. addressing mainly UVA radiation) is at least 1/3 of the factor measured by the sun protection factor testing method (i.e. addressing mainly UVB radiation).
10. Therefore, the protection against UVA and UVB radiation should be related. Scientific findings show that certain biological damage to the skin can be prevented and reduced if the ratio of the protection factor measured in the persistent pigment darkening test (i.e. addressing mainly UVA radiation) is at least 1/3 of the factor measured by the sun protection factor testing method (i.e. addressing mainly UVB radiation).
11. Moreover, in order to reach the protection level indicated by the sun protection factor, sunscreen products have to be applied in quantities similar to the ones used for testing, i.e. 2 mg/cm2, which equals 6 teaspoons of lotion (approx. 36 grams) for the body of one average adult person.
12. A wide variety of numbers used on labels for indicating the sun protection factor does not support the aim of making claims that are simple and meaningful. The increase in protection from one number to the next is negligible, particularly in the high range.