Humectant in cosmetics

When the skin aging and water loss increases, they lead to cell shrinkage, aging, organizations lacking and atrophy, there histological and morphological structure changes and it makes small skin wrinkles emerge. Moisturizing agents as one of the cosmetics materials play an important role in keeping skin moisture and repairing skin barrier function. It has a wide application in drugs and cosmetics. There are many different types of moisturizers, including glycerol, silicone oil, Vaseline, since oil, lanolin, urea, etc. The most commonly used, these agents are mostly safe, low cost, is the most common cosmetic moisturizers, the main drawback is that often the skin after use greasy, some agents (such as lanolin, urea, etc.) smell. Hyaluronic acid, sodium pyrrolidone carboxylic acid, astaxanthin lactic acid and sodium lactate in the human body is the main component of natural moisturizing factor.Intercellular matrix is an important component of hyaluronic acid, it is an important matrix components filling with a variety of tissue cells .And its ability to retain moisture is stronger than any other natural or synthetic polymers. Pyrrolidone carboxylic acid sodium is decomposition products of the epidermal granular layer silk protein aggregates, the skin's natural moisturizing factor in the pyrrolidone carboxylic acid sodium content of about 12%, the stratum corneum to reduce sodium pyrrolidone carboxylic acid, the skin becomes dry and rough; lactic acid is a natural human skin The main water-soluble moisturizing factor acids, content of 12% lactic acid molecules of the carboxyl group of the hair and skin better cooperation with the pro. Sodium lactate is a very effective moisturizer, its moisture retention better than glycerol. Composed of lactic acid and sodium lactate buffer solution, the pH of the skin can be adjusted. And ceramides, collagen is the most recent years developed a new generation of moisturizing agents, which constitute the stratum corneum of the material with similar structure, can quickly penetrate into the skin, and cuticle in the water, forming a mesh structure, secures the water. Principle because of its moisture is different from the traditional moisturizers. Some people say that a new world is opened up for moisture.In addition, many ingredients extracted from plants and animals have been used for skin moisturizing. Chitin derivatives are the natural moisturizing agents extract from crustacean shell. The effects are close to hyaluronic acid. In physical, it is a very safe moisturizing agent. It also becomes a drug used in the artificial skin and wound healing aspects. Aloe vera is a plant-derived moisturizers, aloe vera juice contains large amounts of mucopolysaccharides as (similar to hyaluronic acid), biotin have a good lubricating and moisturizing effect, in addition to sun protection and anti-inflammatory effect. Seaweed extract is rich in amino acids, vitamins and mucopolysaccharides, also moisturizing the skin, lubricating and anti-wrinkle effect.The Jojoba oil is the main component of high alcohol and unsaturated fatty acids, good stability, easy integration with the skin. Wheat germ oil is from wheat germ with high content of vitamin E and it is a high-quality emollient. Squalane is the animal fat with extremely high chemical stability and excellent sense. It can inhibit the growth of mold. Source: http://www.cosprm.com