POLA Kasei develops a lipstick formulation that does not transfer color and has a long-lasting color and is comfortable

 POLA Kasei Kogyo has succeeded in developing a liquid lipstick formulation that does not transfer color to cups and has a long-lasting color while having an excellent usability. This result will be utilized in products released by the POLA ORBIS Group.

There is a high need for lipsticks that do not transfer color to cups, etc., and various technologies have been developed, but the mainstream technology so far is to harden the lipstick film with a film agent, and it takes time to harden. There was room for improvement in terms of points and the feeling of stiffness and dryness.

Therefore, this time, in order to use it comfortably and comfortably, we abandoned the common sense that color transfer cannot be prevented unless the film is hardened, and new technology is used to realize the functionality of "no color transfer and good color retention" by other means. Worked on the development of.

Then, in order to achieve both functionality and usability, we came up with a new idea that the formulation design that divides into three layers immediately after application is the key, and as a result of repeated studies focusing on the mechanism of color transfer and color retention, application Although it is a uniform liquid before, when applied, it creates a transparent layer on the surface, a layer containing a lot of pigment in the middle, and a balm-like layer on the labial side. We have succeeded in developing a lipstick that has a long life.

In the development, we first adopted the main component that forms the transparent layer, which is difficult to mix with the main components of the pigment layer and balm layer and that separates naturally when left alone.

At the same time, by blending a component that easily blends into the main components of each layer and easily evaporates, a uniformly mixed state is maintained before application, but after application, this component evaporates immediately and is quickly layered. Designed to separate into.

Furthermore, a new component that forms a balm layer by fusing with the moisture of the lips and adheres for a long time is adopted.

Regarding the function that does not transfer color, it was confirmed that the dye does not easily adhere to the cup etc. because the transparent layer covers the dye layer. In addition, the balm layer in contact with the lips has excellent adhesion to the lips and is familiar with the pigment layer, so it is said that the color and luster can be kept for a longer time, and it was confirmed that the color lasts well.

Furthermore, since the lipstick film was not hardened, an excellent feeling of use was obtained, and the sensory evaluation of smoothness and moisturizing feeling was also high. When 13 cosmetics specialists compared and evaluated the feeling of use with the conventional liquid type product, the developed product was highly evaluated for its "moisturizing feeling" and "smoothness" in actual use.

As a result, it was confirmed that not only "the color does not transfer and the color lasts well" but also "it can be used comfortably and comfortably". The results were also good in terms of finish such as gloss and color development and overall evaluation.

"With this technology, we succeeded in solving the problem at once by" controlling the layer formation "based on the reverse idea of" not solidifying the film "."