Do skin care products expire?

There are different types of human skin. For example, some people have dry skin, some have standard neutral skin, and some have very sensitive skin. So when buying skin care products, you must consider your skin condition. It is also best not to buy a lot of skin care products at one time, because all skin care products and cosmetics have a shelf life. It is best not to use them after the shelf life.

Do skin care products expire?

When the cosmetics are opened, subtle chemical changes will begin to occur and they will slowly deteriorate. According to research by Sai Gui Fei Cosmetics OEM engineers, there are no cosmetics in the world that will not deteriorate. When the cosmetics are opened, the chemical ingredients in the cosmetics become active when they encounter oxygen and begin to undergo chemical changes. Many cosmetic instructions will clearly indicate the shelf life of the cosmetics, but because consumers do not properly store the cosmetics, the cosmetics often expire before the shelf life.

The cosmetics OEM engineer will explain below how to tell whether your cosmetics are expired. The main manifestations of cosmetic deterioration are color change, fermentation, spotting, oil-water separation, mildew, etc. All of these can be observed directly with the naked eye.

Discoloration refers to the change in the original color of cosmetics. It is caused by bacteria producing pigments, making them turn yellow, brown or black.

Fermentation refers to the production of bubbles and strange smells in cosmetics. It is due to bacterial fermentation that decomposes the organic matter in the cosmetics to produce acid and gas, causing the cosmetics to change taste and produce bubbles.

Spotting refers to the appearance of green, yellow, black and other mold spots on cosmetics. It is caused by moisture that causes mold to contaminate the cosmetics and shrink.

Oil-water separation refers to the process in which cosmetics become thinner and water appears. This is because the bacteria contain enzymes that hydrolyze proteins and lipids, causing the proteins and lipids in the cosmetics to break down, destroying the emulsification level and causing them to deteriorate.

Mildew refers to the appearance of flocculence or dispersion in cosmetics. It is caused by the reproduction of bacteria in the cream under high temperatures, which produces carbon dioxide gas.

Cosmetics OEM engineers remind female consumers that expired cosmetics are poison and using old cosmetics is equivalent to harming your skin. It is important to distinguish whether cosmetics are expired. Expired cosmetics actually still have other uses. Here, Sai Guifei Cosmetics OEM engineers recommend several ways to recycle cosmetics.

Toner: You can use a cotton pad to wipe your mobile phone, laptop, computer keyboard, screen, etc. It can be used on anything you can think of. It is especially effective for cleaning electronic products without damaging the machine.

Lotion and cream: As long as they are not spoiled, you can apply them on your hands and feet. You can also use them to wipe leather bags, leather clothes, leather shoes and other leather goods. They have good cleaning effects and maintenance functions.

Eye shadow: You can crush it and mix it into colorless nail polish to make beautiful nail polish.

Colorless lip balm: Like lotion, it can be used to apply leather goods.

Toothpaste: Use it to wipe stainless steel utensils and they will become especially shiny.

Soap: If it expires before being opened, you can open the package and put it in the closet. It will be a good fragrance agent.

Facial cleanser: If there are oily spots on your clothes, you can apply a little on them and rub them. They will be clean quickly. You can also mix it with water to make hand soap.

Cosmetics OEM engineers remind everyone that although expired cosmetics cannot be used for skin care, you can still use your creativity to reuse expired cosmetics and make use of their residual heat.