What are traditional moisturizers?
2024-11-27 16:01
Traditional moisturizers in cosmetics are occlusive moisturizers. These types of moisturizers slow down the evaporation of moisture from the skin. Their function is different from that of antiperspirants. They do not interfere with the transport of liquid water in the skin. By preventing moisture evaporation, occlusive moisturizers increase the moisture content of the skin. They are generally lipids that tend to remain on the skin's surface as an occlusive skin barrier, retaining moisture within the epidermis and stratum corneum. Such moisturizers include petrolatum (commonly known as Vaseline); polydimethylsiloxane (250-5000cSt); lanolin and its derivatives; plant fats/oils and their derivatives, such as shea butter, avocado oil, olive oil, etc.; high molecular weight linear fatty acid esters, such as peanut alcohol propionate, cetyl palmitate; potassium lactate, alkyl polysiloxanes; film-forming polymers.
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The difference between water-based thickeners and oil-based thickeners.
Washing thickening agents are usually an anionic hydrophobic modified acrylic alkali swelling associative rheology modifier.
Cosmetics without preservatives are safer?
Many consumers are "afraid of preservatives" and believe that cosmetics without preservatives are safe and of high quality. To meet consumers' psychological needs, some cosmetic companies have launched concepts such as "fresh," "natural," "preservative-free," and "additive-free" cosmetics.
The application of moisturizers in cosmetics
Moisturizers serve multiple functions in cosmetics, primarily including providing hydration, maintaining the skin's oil-water balance, enhancing skin elasticity, and promoting the absorption of other active ingredients.
What is the function of a thickening agent?
Also known as a gelling agent, it is a substance that can increase the viscosity of latex and liquids, and when used in food, it is referred to as a paste. Thickeners can enhance the viscosity of the system, keeping it in a uniform and stable suspension or emulsion state, or forming a gel; most thickeners also have emulsifying properties.
Makeup remover is a skincare product used to clean and remove cosmetics and dirt from the skin. The main function of makeup remover is to dissolve and eliminate makeup, oil, sweat, and other impurities on the skin, helping to keep the skin fresh and maintain its normal physiological functions.
Why are preservatives added to cosmetics?
Many ingredients in cosmetics are nutrients for the growth and reproduction of microorganisms, and during the production and use of cosmetics, they can easily be contaminated by microorganisms. Therefore, it is necessary to add an appropriate amount of preservatives.
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