During the scorching summer, whether you are on a beach vacation or commuting daily, sweating and oil secretion always leave your meticulously applied makeup at risk of "losing its finish". In fact, behind many cosmetics that claim "long-lasting" and "waterproof" properties, there is an invisible "setting master" - IOTA 91003C organic silicone resin mixture.
IOTA 91003C, commonly referred to as "trimethylsiloxysilicate (and) isododecane" in the cosmetic ingredient list, is like giving your skin a hidden "raincoat". As a heterogeneous isododecane dispersion of organic silicone resin, its greatest characteristic is excellent hydrophobicity and film-forming ability. When it is applied to the skin, isododecane will gradually evaporate at an appropriate rate, leaving a tough, fine, and breathable protective film composed of organic silicone resin.
This film not only effectively resists the invasion of water and oil, making the makeup water-resistant and resistant to migration, but also gives the skin and hair a natural luster. Therefore, it is widely used in sunscreens, foundation lotions, mascara, and hair care essential oils. In makeup products, it can firmly "stick" the colors to the face; in hair care products, it can make the hair thick, full, and easy to shape.
However, there is a little trick when using products containing such ingredients. Since IOTA 91003C has a moderate volatility, the temperature during formulation processing should be controlled below 50℃ to retain its best performance. It is precisely this ingenious chemical structure that allows us to maintain a delicate and perfect makeup even when playing in water and sweating profusely.