1. Polymethylsilsesquioxane (commonly known as P.P powder)
A typical silicone resin that can be dissolved in a variety of cosmetic oils and forms a thin film on the skin surface. This ingredient is the first magical thing in cosmetics to be discussed today.
This ingredient is widely used in lipstick, primer, foundation, sunscreen and other cosmetics. It is a typical opaque emollient.
It is flexible and fits the skin, improving the waterproof and oil-proof properties of cosmetics; it has the effect of softening the skin, providing extra fat to the skin, reducing the evaporation of skin moisture, rehydrating dry skin and hardened stratum corneum, and restoring luster, softness and elasticity; adding polymethylsilsesquioxane to makeup can alleviate the problem of makeup smudge and reduce the phenomenon of color migration.
The spherical polymethylsilsesquioxane silicon powder has a particle size of 15 microns. The PP powder is made by special process technology. The powdered silicone resin has infusible thermosetting properties. It combines the advantages of inorganic powder and organic powder. It has a smooth and silky skin feel and excellent water resistance.
PP powder has excellent stability, safety and compatibility. It also has a velvety smoothness and touch. It has a high performance-price ratio and is an excellent substitute for nylon powder, spherical silica powder and boron nitride powder.
*Silky and powdery skin feel: PP powder combines the advantages of inorganic powder and organic powder. It is different from the cold hardness of inorganic mineral powder. Its silicone properties make it It feels soft and elastic when touched, as smooth as silk.
* Anti-caking: Many dry powder formulas have the problem of caking or not flowing freely after storage. This situation is generally caused by moisture absorption. PP powder has water resistance, which helps prevent loose powder from agglomerating.
* Matte oil control effect: The spherical surface of PP powder has a scattering effect on light. After absorbing oil, it shows a transparent matte effect. Combined with other silicone raw materials, it can create a unique and long-lasting matte oil control system, which can cover fine wrinkles, block ultraviolet rays and protect the skin.
* Promote pigment dispersion: Because PP powder has the characteristics of both inorganic materials, it can act as a medium between the two. Especially in oil-containing cosmetics, both organic and inorganic pigments can be evenly dispersed in the system through the transportation of PP powder. It can not only save the amount of pigment, but also improve the vividness of the color.
The recommended dosage in cosmetics is 05%~25%, and the recommended dosage in sunscreen and skin care products is 1%~5%.
2. Mineral oil
A highly pure and lightweight ingredient used in baby lotions, cold creams, ointments and many other cosmetic and personal care products, it helps reduce skin moisture loss and keeps it moisturized.
Mineral oil is a grease extracted from petroleum, colorless, odorless and hypoallergenic. It has antistatic effects and is used as a solvent and emollient in cosmetics. Mineral oil is divided into cosmetic grade and medicinal grade. Cosmetic grade mineral oil is highly safe, less irritating, and can also achieve antioxidant effects. However, mineral oil with low purity may cause skin irritation due to the presence of aromatic components. It should be avoided for sensitive skin and may also cause acne. The higher the purity of the mineral oil, the safer it is for the skin.
The highly refined, purified mineral oil used in cosmetics and skin care products is non-comedogenic. It is an inert and stable compound. Mineral oil is used in many products for sensitive skin, and is relatively less likely to cause skin reactions and will not deteriorate in humid climates.
Paula Ingredient Lyrics and Songs in the United States believes that cosmetic grade mineral oil and Vaseline are considered to be the safest and least allergenic moisturizing ingredients to date. The mineral oil in skin care products is certified by USP (United States Pharmacopoeia) or BP (British Pharmacopoeia), which is completely safe, soothing and sensitizing.
3. Hydrogenated polyisobutene
A synthetic oil, similar to the properties of natural squalane, good breathability and non-greasy. As an emollient, it provides oil to the skin, prevents water evaporation, restores softness and elasticity to dry skin or hardened stratum corneum, and provides a light silky skin feel to the skin.
As a film-forming agent, it covers the surface of the skin or hair to form a continuous film, locks in moisture, and makes the skin and hair soft, similar to the effect of skin emollients; as a viscosity controller, it can increase the viscosity of the product and stabilize the product state.
Hydrogenated polyisobutene is a synthetic polymer, mainly used as a film-forming emollient and viscosity controller in cosmetics. Hydrogenated polyisobutene has the cosmetic properties of squalane, so it is called synthetic squalane. At present, the hydrogenated polyisobutylene used in my country mainly comes from Nippon Oil & Fats Co., Ltd., with the trade name Polysynlane. It is an isomeric straight-chain alkane that can be used in cosmetics and medicines. It has the functions of moisturizing, hydrating and lubricating. It has similar properties to natural squalane, but is much cheaper. It is mainly used in cosmetics such as lipsticks and creams.
Nanjing Manta New Material Co., Ltd.