Physical sunscreen VS chemical sunscreen which one do you choose?

Sunscreen products that use physical sunscreens are physical sunscreens. Physical sunscreens are inorganic substances used to block and reflect ultraviolet light. The most commonly used are zinc oxide (ZnO2) and titanium dioxide (TiO2), both of which are completely non-irritating. Physical sunscreens are relatively stable and safe, and offer full-band protection from UVB to UVA.

Traditionally, physical sunscreens are thicker and whiter and fairer on the skin. However, zinc oxide and titanium dioxide can also have a transparent appearance after being pulverized into nanometers. It can be made light and transparent without affecting skin tone.

Correspondingly, chemical sunscreens are used as chemical sunscreens, which avoid damage to the skin by absorbing ultraviolet light and converting ultraviolet light into heat.

Chemical sunscreens are generally transparent and therefore have a slimmer and natural appearance. If the chemical sunscreen is absorbed by the skin, it may cause a photosensitivity reaction. Most chemical sunscreens have certain irritating properties, and the relevant specifications have an upper limit on the amount of addition. Of the 28 sunscreen ingredients currently approved in China, 26 are chemical sunscreens.

Both pros and cons are "relative"

In fact, about physical sunscreen and chemical sunscreen disputes, the earliest time there is indeed physical sunscreen is too thick, chemical sunscreen is easy to sensitize the appearance of the phenomenon, relatively speaking, physical sunscreen is safe, but pay attention to "relative", if one One in a thousand people responds to chemical sunscreens, so physical sunscreen is one in ten thousand safe. Therefore, some people are allergic to physical sunscreen, and it is not a particularly strange thing. There will always be people who are not suitable.

Physical OR Chemistry doesn't have to worry too much

But today, technology is always changing, physical sunscreen can already be done not so heavy, especially the Japanese physical sunscreen, can not be done without white or thick. As for chemical sunscreen, most of the well-known brands now have the technology to be safe. There are many products that use a combination of chemical and physical sun protection in order to achieve a balance between light and transparent and sunscreen. Each type of sunscreen has different UV protection capabilities for different wavelength bands, so it is used in combination with each other to achieve better protection in each band, and it is also common in the industry.