The excellent surface activity, film-forming properties, and non irritating and non allergic reactions of PVP have broad prospects for application in the daily chemical industry, especially in cosmetics, skincare products, hair care products, and washing products.

The Application of PVP in Cosmetics：

The research on the application of PVP in cosmetics began in the 1960s, and now it has been widely used in hair care products, skin care products, decorations and other aspects, the most prominent of which is the application in hair care products. As an excellent surfactant, adding PVP in shampoo can stabilize foam. Due to its physiological compatibility, it will not cause irritation or allergic reactions to the skin, and long-term use will not damage the hair. After washing, the hair will be smooth, shiny, and easy to comb. The spray gel and mousse with PVP added have long-lasting styling and good luster. Moreover, due to PVP's certain water absorption ability, the hair is moisturized and smooth without appearing dry. PVP used in hair care products can adjust its water absorption ability through the selection and proportion of copolymer monomers, and is suitable for dry, neutral, and oily hair. PVP, as a hair conditioner component, has unique advantages. The main component of hair is protein, and the molecular structure of PVP is also similar to protein, so it can be used as a supplement to hair nutrients. Long term use of shampoo and hair care products containing PVP can make the hair black and shiny, reduce the phenomenon of hair splitting,

First, give an example of the formula of PVP used in hair care and shampoo products：

Hair spray：

The role of PVP in other cosmetics is mainly to stabilize lotion, suspension and other dispersion systems. The moisturizing and film-forming functions in skin care products, such as the role of PVP in sunscreen is not only wetting, but more importantly, to isolate the skin from the sun by forming a film to protect the skin. In addition, PVP has special uses in many cosmetics, such as pigment stabilizers, deodorizers, fragrance enhancers, toothpaste, shaving cream, etc. PVP in cosmetics

The application components and functions in are listed in the table below：

Application of PVP and its copolymers in cosmetics：

Application of PVP in laundry products：

The excellent surface activity of PVP makes it effective as an ingredient in some washing products. The cross-linked polymer PVPP of PVPP is used as an ingredient in toothpaste, which not only removes dirt and stains, but also has anti-inflammatory and analgesic effects. First, let's take a toothpaste formula containing PVPP as follows：

The acrylic copolymer of PVP not only has the functions of dispersing stabilizer and detergent in bath liquid, but also has the function of sterilization and disinfection. Especially as a component of medicinal soap and soap, it has a good effect in summer. The oleophilic and hydrophilic properties of PVP make it particularly effective in cleaning clothes, especially in cleaning hotel and restaurant tablecloths. For example, Guangzhou Jinyuan Laundry Products Factory uses BASF's "Tablecloth Clean" for washing tablecloths, which not only has a short washing time, but also leaves the tablecloths white and soft after washing, with a faint fragrance, and also has the effect of sterilization and disinfection.

In summary, the functions of PVP in daily chemical products are mainly manifested in the following aspects:

Dispersion and stability function: Common skin care products, creams and other cosmetics are mostly lotion and suspensions. It is very important to keep them for a long time without precipitation and deterioration, so that they can be dispersed into a uniform system and have a certain stability time. The important function of PVP in cosmetics is dispersion and stability.

Decontamination and washing function: PVP and its copolymers, due to their specific molecular structures, have both lipophilicity, which allows them to remove oil and sweat stains from clothing, hair, and skin, as well as good hydrophilicity, making it easy to wash away stains from clothing and skin.

Film forming and moisturizing functions: This is the most common function of PVP in cosmetics, widely used in hair care products, skincare products, etc.

Sterilization and disinfection functions: mainly used in washing products.