Can we measure our sensitivity to the sun? Yes. From the Fitzpatrick Scale, a numerical classification based on skin phototype. It is a tool widely used in dermatological research and also in the cosmetic world to recommend sun protection creams.
Skin phototype
According to this classification, developed by the dermatologist Thomas B. Fitzpatrick in 1975, there are 6 skin phototypes, which are:
Phototype 1: belonging to people with very pale skin. Generally occurs in people with red hair and/or skin that almost always burns. They hardly tan and often suffer photoallergic reactions when exposed to sunlight for hours.
Phototype 2: people with white, sensitive and delicate skin. It generally occurs in people with blond or light hair. As in people with phototype 1, this skin type hardly tans and suffers photoallergic reactions upon prolonged exposure to the sun.
Phototype 3: is the most common skin phototype among Spaniards. It corresponds to people with brown hair and intermediate skin. When exposed to the sun they redden first and then tan.
Phototype 4: belongs to people with dark or black hair. The skin is dark and tans quickly.
Phototype 5: people whose skin is even darker than that of phototype 4.
Phototype 6: people with very dark skin. Traditionally referred to as "black skin".
Below is an image in which you can differentiate the 6 phototypes described:
Thus, according to this classification, we understand that people with phototype 1 are the most sensitive to solar radiation, while people with phototype 6 skin are the least sensitive.
Sun sensitivity
Once we are clear about our skin phototype, we ask ourselves: Whatsun protection factor should we use? Which one suits our skin? To answer this question we provide you with this brief outline, which sets out a very simple photoprotection guide Look!
According to this photoprotection guide we see that a skin phototype 1 skin should use a very high protection factor (SPF50 PLUS). As the skin phototype increases, the protection factor decreases. Leaving the lowest protection factors for phototypes 5 and 6.
Other recommendations against solar radiation
It is also advisable to take into account these recommendations:
- Do not expose yourself to the sun between noon and 4 p.m.
- Apply theprotective 30 minutes before starting the exposure and repeat the application every 2 hours and after every bath, exercise or if you have sweated a lot. Use it even if it is cloudy.
- Apply an amount that evenly and sufficiently covers the entire exposed surface, including lips, ears, neck and back of feet.
- Protect yourself by seeking shade and wearing hats or caps, T-shirts, sarongs or other appropriate clothing and goggles.
- Drink water frequently to maintain proper hydration.
