Yellow Sun

Yellow Sun

6 Wrong Usages of Sun Screen

6 Wrong Usages of Sun Screen

Mistake 1: Sun screen can resist computer radiation

If you are in front of a computer for a long time, the electron radiation will hurt your skin cells and make the free radicals more active. The content of fresh oxygen in enclosed environment which may cause oxygen lack of our skin is very much below that of outside. By now, there hasn't been a sun screen that can specially resist computer radiation. Therefore, the moisturizing of our skin appears to be more important. 

Mistake 2: Use sun screen only without using sunblock

Obviously, both sun screen and sunblock has the effect of sun-proof and they are used after smearing daily skincare products. However, what is worth mentioning is that the effect of sunblock is to technical sun-proof while sun screen can not only protect our skin from cosmetics and dust but adjust the skin color plus a certain effect of sun-proof.

Mistake 3: Latex or sun screen first? The usage order is very confusing.

First of all, figure out what kind of latex you are using. If it is day latex, you can completely skip the step of smearing sun screen and smear foundation emulsion directly only if you want to decorate your excessively yellow skin. You can choose sun screen with the effect of decorating skin color. Suppose your latex is ordinary moisturizing one, you should read the instructions carefully.

Mistake 4: Choose the color of sun screen casually

Everybody knows that there are many colors of sun screen in the market. Purple sun screen is suitable for ordinary and a little yellow skin; green is suitable for a little red skin with pock; white is suitable for dark, dull, and unclean skin; blue is suitable for white skin lack of redness and Brilliance; natural color is suitable for ruddy and ordinary skin as well as skin only requiring moisturizing without the effect of decoration.

Mistake 5: The effect of sun screen can last for the whole day

The effect of chemical sun screen can only last for 2 hours. The lasting time of physical sun screen is determined by SPF. It can last longer than chemical sun screen. However, it also needs to be smeared frequently according to SPF.

Mistake 6: Regard sun screen as omnipotent

The purpose of using sun screen is to provide our skin a clean and mild environment to construct a "front line" to prevent outside invasion such as dullness and the growth of acnes before making up. Therefore, it is a product which can protect the makeup and our skin. Though there are many other effects such as covering flaws and anti-aging, sun screen is not omnipotent. It can not substitute other facial makeup products.

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zhaoshaojing

Why do people think that our sun is yellow?

When it's actually a white star.

People say our star is a yellow dwarf.

Is it classified as a white dwarf? Or is it a dwarf?

The Sun is white. The definition of white light is based onthe Suns illumination of our world. It is described as yellow, because when it is lower in the horizon, it appears orange or yellow, those are the only times that the ancients (and modern people, for that matter) are able to actually gaze upon for a brief time.

But that is not the reason why it is called a yellow dwarf. The reason is based on temperature of blackbody radiation. A Hertzsprung-Russel diagram will show this even better.

The Raconteurs Yellow sun