How to judge whether the isolation cream is expired? Does the isolation cream have sun protection function?

Primer is a cosmetic that needs to be used all year round. We can also use only primer without other cosmetics. So, how long is the shelf life of isolation cream? How to determine whether the primer is expired? Let’s take a look together.

How to judge whether the isolation cream is expired

We can judge from changes in product color, product status, and product smell. Expired primer products will change. The color may change from white to other colors, the smell will become unpleasant, it will be ineffective to use, and it may also affect the skin.

Does the primer have sun protection function?

Only isolation creams with sunscreen ingredients have sunscreen function. The sunscreen effect of isolation cream is much weaker than that of sunscreen. Some people don’t want to apply so many things on their faces. They can choose a primer with a higher SPF as a base product, but if they are going to be exposed to the sun outdoors for a long time, it is recommended to apply sunscreen. Seal can protect against the sun and makeup, prevent dirty air, and have the effect of modifying and whitening the skin. Sunscreen is used to protect against ultraviolet rays and needs to be used all year round. It can prevent the production of melanin, keep you youthful at all times and protect your skin.

Do I need to use sunscreen after using isolation?

After using a primer, you also need to use sunscreen. If you want to beautify your skin but only want to apply one, you can choose a sunscreen with a moisturizing effect, or a primer with a sunscreen effect. Primer, also known as primer, can make makeup more delicate and fitting, and has a retouching or concealing effect. It is used as a base product before foundation. Some primers also have added sunscreen ingredients. Which one you choose depends mainly on which effect you focus on.

Can I use sunscreen with natural cream?

Whether bare face cream can protect against the sun depends on whether it has sunscreen ingredients. Generally, bare face cream contains some skin care ingredients and titanium dioxide, which have the effect of whitening and brightening. If you want to protect yourself from the sun, you still need to apply professional sunscreen products to effectively resist the ultraviolet rays in the sun. If you are indoors, you can only use a natural cream that has a sunscreen effect.