Does the primer need to wait for the film to form? How many minutes does it take for the primer to form a film?

When we usually put on makeup, we need to wait for the cosmetics to form a film to form a natural barrier for the skin. This can reduce the harm of the external environment to the skin. So do we need to wait for the film to form when applying isolation?

It depends on the situation. Whether the primer needs to wait for film formation depends on whether it can form a film. Some primers, like sunscreens, can form a film after being applied on the face. In this case, we can wait for it to form a film before applying makeup. But if it is a primer that does not form a film, you only need to wait for it to fit the skin after application before applying makeup.

If your isolation cream has a sun protection index, then it also has a sun protection effect. You can apply it on your face 15-20 minutes before going out. Isolation cream can reduce contact with dust in the air, and can also reduce some computer radiation to prevent radiation from damaging the skin. Isolation cream also has an isolation effect on ultraviolet rays, which reduces the damage caused by ultraviolet rays to the skin and acts as a protective film. If you want to achieve a good sun protection effect, it is recommended to apply an extra layer of sunscreen, because isolation cream generally has a face-beautifying and whitening function. You can't apply it too thickly, but you must apply it very thickly to achieve a good sun protection effect. So if you really value your skin care, whether your isolation cream is for simple isolation or sun protection isolation, it is recommended that you apply sunscreen before.

Misconception 1: Not paying attention to the functionality of the primer, just pick one and use it. Many girls only know that primer has a protective effect, so they often buy one and apply it on their face. This is wrong. In fact, primer also has different functions. For women with different skin colors, primer has different functions. Some primers are designed to neutralize the dullness and yellowing of women's faces, while some primers are designed to cover the redness on women's faces. If you don't choose a primer that suits you, it will not work, and you will buy it in vain. Even more so, if you buy a primer to repair dullness, the acne will become more obvious, which is simply hurting your skin!

Myth 2: I think that a thick layer of primer is needed to achieve the desired effect. This is another misconception of many girls. In fact, the usage of primer and sunscreen is the same. You don’t need to apply a thick layer. As long as you can cover the whole face, even a thin layer is enough. Because primer, like sunscreen, will form a film naturally, many girls think that only by applying a thick layer can they prevent the damage of cosmetics to their skin. This is wrong. Too thick a primer will make your skin unable to breathe and will only damage the skin more.

Misconception 3: Not knowing at which makeup step to use primer. Compared with the above two points, this one should not be made by many girls. Primer is generally used after basic skin care. Before formal makeup, you should apply a layer of primer in advance, wait for a few minutes, and then use makeup products such as foundation and concealer. If you use it after these, the primer will not work, and the skin will still be irritated by cosmetics. Therefore, it should be used after skin care and before makeup. There is no doubt about this.

Both are important. Isolation cream and sunscreen are very important. Isolation cream can help isolate dust, oil and impurities in the air, and it can form a good protective film for the skin, which can reduce the harmful ingredients in makeup from entering the skin. As for sunscreen, it can help isolate ultraviolet rays, reduce the damage of ultraviolet rays to the skin, and keep the skin in a healthy state. Both are very important, indispensable and irreplaceable. Use them together to achieve the best skin protection effect.