About ultraviolet rays

Q1 Which season has the most UV rays?

June and July are the months with the highest amount of UV rays per day . July and August are the months when the strongest UV rays are observed. However, be aware that the amount of UV rays is high in April-May and September.


Q2 When is the amount of UV rays high?

10:00 to 14:00 is the time when the amount of UV rays is high in a day. peak around noon

Q3 Are there no UV rays except on sunny days?

When the amount of UV rays on a clear day is taken as 100%

Clear weather ………… 100% The amount of UV rays is quite strong. Be careful of direct sunlight and glare from the ground.
Cloudiness ………… 50 to 80% A state in which the amount of ultraviolet rays is strong. Even if it's cloudy, it will get sunburnt.
Rain ………… 30% The amount of UV rays is weak, but let's not let our guard down.


About spots

Why do stains occur? ? 

One of the causes of dark spots is sunlight (ultraviolet rays) .
When exposed to light, pigment cells at the very bottom base of the epidermis produce large amounts of melanin pigment in order to prevent ultraviolet rays from reaching the dermis. In normal skin with a smooth metabolic rhythm, melanin is pushed up to the surface of the skin along with epidermal cells.
However, in tanned skin, the rhythm of metabolism is disturbed, and melanin pigment (*1) remains on the skin forever and is deposited inside the skin . This will cause stains. There are various causes of spots, but 80% of them are caused by ultraviolet rays.

*1 = Blackened due to inflammation of melanin pigment due to external stimuli