Red lips, white teeth, delicate spring breeze, mouth fat, medicinal color
Kouzhi "is what we now call lipstick. From ancient times to the present, women's pursuit of beauty has never stopped. This is not only for appearance, but also a way to achieve self-awareness.
No matter how expensive the lipstick you buy is, it is basically composed of three parts: matrix, dye, and fragrance.
one
A matrix made by mixing various oils and waxes in a certain proportion
✴  Oil: Refers to the fatty acid glycerides formed by different types of fatty acids and glycerol. Due to the wide variety of fatty acid esters, there are also many types of oil. According to their sources, they can be divided into mineral oil, vegetable oil, animal oil, and chemically synthesized oil. Oil is the main component in lipstick, mainly used to form a hydrophobic film on the skin, which not only prevents skin dryness and cracking, but also helps reduce skin moisture loss, making the lips elastic and shiny.

✴  Wax components: are essential ingredients used in the casting process of lipstick, mainly to make the lipstick easier to apply and produce a wax like or oily shiny effect. According to their sources, they can be divided into natural wax and synthetic wax.
two
Dye
The most flexible ingredient in lipstick is undoubtedly dye. The dazzling array of red lipstick marks on the cosmetics counter makes it difficult to distinguish.
Among lipstick dyes, the most famous is not rouge. Cochineal red, also known as vermilion, is native to South America. Due to the large amount of red blood in the body of cochineal worms, it is ground and processed into a natural red pigment.
In addition to natural dyes, people have also developed various mineral dyes and synthetic dyes, which make the color of lipstick more rich.
three
Spices
The spices added in lipstick mainly include natural essential oil and synthetic essence. Commonly used natural essential oils include rose essential oil, magnolia essential oil, gardenia essential oil, etc.
After all, it is used on the mouth,
Lipstick should be preserved in Dim sum
one
light-proof
Lipstick should not be placed in direct sunlight or light, as exposure to light can cause the moisture in the lipstick to evaporate, and oils and fragrances are also prone to oxidation reactions, which increases the risk of lipstick deterioration. In addition, high temperatures can easily cause lipstick to deform.
two
dry
Many fairies are accustomed to placing cosmetics on the washbasin, so that they can apply a beautiful makeup after washing up. But this is actually not advisable, because the washbasin is relatively humid, and the environment with high humidity is suitable for the growth and reproduction of microorganisms, which may increase the risk of lipstick spoilage. To protect your beloved lipstick from microbial invasion, please find a cool and dry habitat for them.
three
Refrigeration requires attention to detail
Unopened or infrequently used lipstick can be stored in the refrigerator compartment. Attention! Never put it in the freezer, and make sure to seal the cosmetics and separate them from food. If possible, you can purchase a cosmetics refrigerator for your beloved cosmetics. In addition, if lipstick stored in the refrigerator is used during the summer, it should be returned to the refrigerator as soon as possible after use. In the scorching summer, there is a large temperature difference between the indoor temperature and the refrigerated room temperature, which can cause lipstick to deteriorate more easily.
four
Pay attention to the shelf life
For cosmetics, there are actually two types of shelf life.
▶  One is the shelf life of unopened lipstick, which is indicated by the date label on the packaging. The shelf life of lipstick is generally 3 years.
▶  Another type is the "open lid shelf life". Observant little fairies will find that some cosmetics have an icon on their packaging that reads "open lid small can", with words such as "6m" or "12m" inside. "m" represents the month, such as "6m" meaning that 6 months after opening is the best use period.
tips：
1. After each use of lipstick, close the lipstick cover tightly to prevent contamination and oxidation due to long-term exposure to air.
If the lipstick will not be used for a period of time, you can use a clean scraper to scrape off the used surface, and then store it according to the method described by the CDC.