|Pars Hayan Co.|
Cosmetics Skin CareCream
Titanium dioxideTiO2 Nanoparticle /Nanopowder CAS Number : 13463-67-7
Human skin can’t resist negative effects of sunlight by itself. The well-known kinds of ultra violet light are divided into three wavelength ranges: UVA (320-400 nm), UVB (280-320 nm) and UVC (100-280 nm)
As sunlight passes atmosphere, all UVC and 90% of UVB light is absorbed by ozone, water vapor and carbon dioxide. UVA light is less absorbed by atmosphere so that the light receiving to earth contains UVA and residual UVB lights.
UVA light causes disease like progeria or freckles through forming free radicals and disorder in skin refreshment process. UVB light has less diffusion and causes direct effects like inflammation, skin burn or in case of long time contact increases the possibility of different kinds of cancer.
Some people have more sensitive skin due to different factors. Skin irritability in these people is more common and inflammation or skin burn can perform faster on their skin. Generally, both chemical and physical absorbents are used to absorb UV lights.
The skin around the eyes is more sensitive and fragile and more delicate than the skin of other parts of the body because it has less fat glands and negative effects may cause wrinkles, bruises and puffy eyes. Sun light may result in negative effects and disorder in skin refreshment in skin around the eyes.
In addition to having a protective mineral against sunlight, it also helps to reduce the wrinkles of the skin around the eye and prevent it, prevent eyelids from dripping, and remove darkness and puffiness under the eyes. The natural beige color of this product is more consistent with the color of the skin due to its specific composition of the pigments, and it creates a protective layer of the skin around the eyes as well as the darkness surrounding it.
Titanium dioxide Nano particles are used in this sunscreen. A parameter named “Solar protection factor (SPF)” is used in sunscreen data sheet which is used to determine the value of harmful lights absorbance.
The SPF value for sunscreen containing Titanium dioxide Nano and micro particles is presented in the following table. According to results the sunscreen containing Nano particles performs better in absorbance of harmful lights.