What is the principle of color-changing lipstick?

There are all kinds of lipsticks on the market now, and there are also various colors, but the colors of these lipsticks are fixed. For example, after applying red lipstick, the lips will turn red. But now there is a color-changing lipstick. The color of this lipstick is originally simple, but once it is applied to the lips, the color of the lipstick will change. According to the different lip colors of each person, the red may automatically become a little deeper, and some may become a little stronger. Such lipstick is like smart, and can automatically change color according to each person’s actual situation. It feels very fresh, so it is deeply loved by people. So what is the principle of color-changing lipstick?

First, why does color-changing lipstick change color?

This lipstick itself is only a light translucent pink, but when applied to the lips, it will magically become darker or lighter depending on the individual's lip color. This is a special lipstick that can be used to beautify and durably enhance the natural color of the lips. It can immediately sense the moisture content of the lips and gradually create different rosy effects suitable for the user. This natural rosy effect is adjusted according to each user, so it is suitable for people with any lip color, making the lips look fresh, plump and shiny. The natural plant rosy ingredients contained in it can improve the lip color with long-term use.

Second, how does the color-changing lipstick change color?

It changes according to the pH value.

For example, eosin, a coloring dye widely used in lipstick, is an acid dye with the common name Solvent Red 43, also known as tetrabromofluorescein or tetrabromofluorescein, and its English name is tetrabromofluorescein. It is an orange compound that is insoluble in water and turns into a deep red salt above pH 4. When used on the lips in the acid form, it produces a permanent purple-red stain due to the neutralization effect on the lip tissue.

Third, the principle of color-changing lipstick

The main ingredients of lipstick are oil (castor oil), fat (lanolin) and wax (beeswax). Beeswax can increase the hardness of lipstick; lanolin, as a solvent for pigments, can increase the dispersion of pigments; castor oil gives lipstick viscosity and enhances the coloring of the lips. A new color-changing lipstick made of eosinic acid pigment has a pH value of 3. It is light brown before use and turns red when applied to lips. I think the reason for this color change is the change in pH value. The eosin pigment acts as an acid-base indicator!

Fourth, is color-changing lipstick poisonous?

It's not toxic, but it's hard to remove makeup.

The main ingredients of lipstick are oil (castor oil), fat (lanolin) and wax (beeswax). A new color-changing lipstick made with eosinic acid pigment has a pH value of 3. It turns red when applied to the lips because there is temperature on the lips and it turns red when it comes into contact with moisture and oxygen in the air. It is a chemical reaction. If the lipstick you use is produced by a regular manufacturer, I think it should not have much impact on your body. Because a lot of sugars we eat contain pigments, normal people can accept some pigments within a certain range, but if you are pregnant, it is not recommended to use lipstick in general, let alone color-changing lipstick.

And when it comes to whether the range of some ingredients added meets the standards, it is recommended that you use those from regular manufacturers.

But to be honest, you should not use color-changing lipsticks. Generally, big brands of lipsticks do not have color-changing lipsticks. Considering this, it is best to use them less. And I don’t know if you have noticed that color-changing lipsticks are different from ordinary lipsticks in that they are very difficult to remove. A good lipstick won't seep into the skin.