Sun protection tips: share these eight tips you need to know

Sharing some tips on sun protection, you need to know these eight tips. Have you taken the right sun protection posture for this summer?

How to choose sunscreen products?

A: When purchasing sunscreen products, you must read the instructions carefully, choose products with the appropriate sun protection factor (SPF value), and also find out whether the product has UVA protection function (generally speaking, products only marked with the SPF logo are not UVA protection, and must have a PA value to effectively block UVA). Only in this way can you buy the product you need.

Q2:

Is the higher the SPF value, the better?

A: The SPF value only indicates how long it delays the skin's exposure to UVB and sunburn. In other words, the SPF value determines how long the skin can withstand sun exposure, not the intensity of the ultraviolet rays. In other words, the sun protection ability of SPF30 is not twice that of SPF15, it just lasts longer.

Q2:

What does PA+ mean?

A: The more plus signs there are, the more it can block the genetic damage caused by long-wave UVA deep in the skin. The correct name of PA is Protection of UVA-1, which means that the PA value is closely related to "sun protection aging".

Q4:

What are physical sunscreen and chemical sunscreen? What's the difference?

A: Physical sunscreens mainly refer to those containing some inorganic powders such as zinc oxide and titanium dioxide, which can reflect and scatter ultraviolet rays, thereby preventing them from directly contacting the skin; chemical sunscreens refer to those containing some organic substances that can absorb ultraviolet rays.

After that, it is released in a lower energy form, thus avoiding direct damage from ultraviolet rays.

Generally, chemical sunscreens are more easily absorbed by the skin, especially chemical sunscreens with high SPF values, and are therefore more likely to cause skin allergies. Therefore, it is best to use chemical sunscreens after using lotion, as the lotion plays a role of isolation. Physical sunscreens will not be absorbed by the skin, are chemically inert, and will not react with other products, so are less likely to cause skin allergies.