Healthcare & 

UV-Index

Skin Types

1975 the amererican dermatologist Thomas Fitzpatrick created a Classification of skin in 6 different Types.

the pigment melanin is responsible For skin-tannig, 
wich also protects from the sun.

type I

- very light skin color and nipples
- no tanning, but freckles
- very often sunburns
- very high skin cancer risk
- self-protection time : <10 minutes

Type II

- light skin color, moderately pigmented nipples
- slow, light browning, often freckles
- often sunburns
- hhigh skin cancer risk
- self-protection time: 10- 20 minutes

Type III

- medium skin color, moderately brown nipples
- slowly, progressice browning, less freckles
- rarely sunburns
- skin cancer risk present
- self-protection time: 20 - 30 minutes

Type IV

- brown or oliv skin, dark nipples
- fast browning, no freckles
- rarely sunburns
- low skin cancer risk
- self-protection time: > 30 minutes

Type V

- dark to lightbrown skin color
- fast browning, no freckles
- rarely sunburns
- very low skin cancer risk, yet be careful
- self-protection time: > 90 minutes

Type VI

- dark brown to black skin color
- no freckles
- almost never sunburn
- almost no skin cancer risk
- self-protection time: >90 minutes

UV-Index

UV-radiation IS the biggest RISk FAcTOR FoR the formation of skin cancer.
The radiation is located in the area of 100-400 NM.

for humans unvisible uv(ultraviolet) radiation 
consists of 44% of heat and of 4% of UV-A and UV-B radiation.

UVC: 100-200 NM

UVC rays are very dangerous for human skin, but this radiation. However, it is almost completely filtered by the ozone layer.

UVB: 200-315 NM

UVB rays are shortwave and mainly responsible for the development of sunburns. In addition, it stimulates the skin to melanin and vitamin D3 formation.

UVA: 315-400 NM

UVA rays are longwave and have the least harm to our skin, but they are especially responsible for the premature aging of the skin. This radiation also stimulates the skin to form melanin.
It is also known as black light.

Melanin

Melanin is a dye, which is reponsible for the tanning of the skin while providing a natural protection against UV radiation.
The darker the skin, the better it can protect itself from the sun.

Solarium

In a turbo tanner the skin is exposed to UVA rays.
Although the dangerous UVB rays were completely out, but the intensity of the UV radiation is increased very much.
As a result, the irradiation time can kept very short, but the greatly increased radiation causes faster aging and the higher risk for skin cancer.

Home tanners irradiate the body with low UVB radiation, whose effect is synonymous with the sun. Thus, the risk of skin cancer is just as high as sunbathing in blazing sun.

UV high-pressure lamps use a very high UVB content, why it is very dangerous and not should be used.

sources: http://weisserhautkrebs.de/vorbeugen/hauttypen.htm; https://www.dha-sonnenschutz.de/sonnenschutz.html#schutz2; https://www.leitlinienprogramm-https://www.uv-check.de/jsp_public/cms2/index.jsp?did=332; https://www.netdoktor.at/gesundheit/urlaub/was-bedeutet-uva-und-uvb-6824939; http://solar-center.stanford.edu/about/uvlight.html; https://www.basaliom.org/hauttypen-und-gefaehrdung/ 

photos: https://unsplash.com/photos/9kQBQqY_xrk; https://unsplash.com/photos/d4JfBqB0CRo; https://unsplash.com/photos/gd0qpyteVFY; https://unsplash.com/photos/gvo3uGk8K_4; https://unsplash.com/photos/OiUDGKHHuN0; https://unsplash.com/photos/NEc3YEN1FFw; https://unsplash.com/photos/zw07kVDaHPw; https://unsplash.com/photos/Un6w0AfDUt0; https://unsplash.com/photos/sUT66nvcOuY