The order of use of barrier cream and sunscreen is: first use barrier cream, then sunscreen.
If you are exposed to less sunlight, just applying a barrier cream is fine, but if you spend a lot of time outdoors in strong sunlight, then you need to use a sunscreen to be safe. The choice depends on the amount of time spent in the sun and the intensity of the sun's rays that day.
Isolation cream is mainly to protect the skin from irritation caused by makeup. By applying a barrier product before putting on foundation, you can strengthen the adhesion of the foundation, make the floating powder phenomenon much lower, and improve the lasting effect of the foundation.
The role of sunscreen is to isolate the skin from ultraviolet rays, and its efficacy depends mainly on the SPF and PA value of the sunscreen, the SPF index is high, the UV protection time will be long.
Expanded
Difference between isolation cream and sunscreen
1, from the function
Sunscreen is mainly used for sunscreen, isolation cream in addition to the basic function of sunscreen, but also to prevent the dirty air and other damage to the skin.
2, from the color
Sunscreen is usually transparent, no modification of the effect of skin color. Isolation cream will add some adjustment of skin color, such as pink, purple, green, etc., on the makeup of the ductility are very good. At the same time, in order not to be thick and greasy, so the sun protection index is usually below SF25.
3, from the effect of resistance to radiation
Segregation cream can prevent computer radiation and other damage to the skin, for the frequent use of electronic devices, the need to use their own isolation cream.
4, from the effect of isolation makeup
General isolation cream can play a role in isolating the effect of makeup, to a certain extent, to prevent makeup residue on the skin caused by damage, if the use of foundation before it is best to use some isolation cream. Generally speaking, sunscreen does not isolate the effect of makeup.
Baidu Encyclopedia - Primer
Baidu Encyclopedia - Isolation Cream
Baidu Encyclopedia - Sunscreen