Polyvinylpyrrolidone, aslo known as PVP with CAS 9003-39-8, is one of the important excipients advocated internationally. PVP is a white to milky white powder. Easily soluble in water, alcohol, amines and halogenated hydrocarbons, but insoluble in acetone, ether, etc. It has excellent solubility, biocompatibility, physiological inertness, film-forming properties, film protection ability and the ability to combine various organic and inorganic compounds, and is relatively stable to acids, salts and heat.

PVP CAS 9003-39-8 is widely used in various fields, among which the use of cosmetics is also more popular, like hair conditioner, hair mask, mask, makeup spray, etc. In this blog, we will focus on its application in facial mask. The functions of polyvinylpyrrolidone (PVP) in facial masks mainly include moisturizing skin, reducing greasy feeling, increasing softness and smoothness, accelerating ingredient penetration and extending ingredient retention time ‌. PVP is a non-ionic polymer compound, good affinity to skin, can form a non-occlusive film on the skin surface, so as to play a moisturizing and moisturizing role.

Specifically, the main roles of PVP in facial masks include:

Film formation:

PVP has good film forming performance. When the mask is applied on the skin, it can form a uniform, transparent and viscous film on the skin surface. This film can tightly adhere the other active ingredients in the mask to the surface of the skin, preventing these ingredients from being lost during the use of the mask, ensuring that nutrients can be more fully absorbed by the skin. At the same time, this film can also form a temporary closed environment on the surface of the skin, just like a layer of “cling film” to the skin, preventing the water on the surface of the skin from evaporating outwardly, thereby increasing the water content of the skin stratum corneum, making the skin more hydrated and smooth.

Thickening:

Masks usually need to have a certain consistency in order to be easily applied and attached to the skin. PVP can increase the viscosity of the mask liquid, make the texture of the mask more uniform, delicate, easy to apply and fit the skin. The appropriate consistency can also ensure that the mask will not flow or drip too quickly during use, which is convenient for users to use and improves the use experience of the mask.

Moisturizing effect:

PVP has good moisturizing properties, it can absorb moisture in the air, and retain it on the skin surface, play a moisturizing effect. During the use of the mask, PVP can help the skin lock in moisture and keep the skin moist for a longer time. In addition, PVP can also combine with the water on the skin surface to form a hydrated state, promote the skin’s absorption and utilization of water, enhance the skin’s moisturizing ability, and make the skin softer and more elastic.

Dispersion and stabilization:

The mask usually contains a variety of active ingredients, plant extracts, spices and other substances, PVP can be used as a dispersant, so that these ingredients are evenly dispersed in the mask liquid, prevent them from precipitation, stratification and other phenomena, to ensure the stability and uniformity of the mask product. It can also interact with other ingredients to form a stable system that extends the shelf life of the mask and ensures that the mask maintains good quality and efficacy during storage and use.

Cleaning and adsorption:

PVP has certain adsorption properties. During the use of the mask, it can absorb dirt, oil and aging keratin on the skin surface to help clean the skin and make the skin more refreshing and clean. At the same time, PVP can also remove excess oil on the skin surface to a certain extent, regulate the skin’s oil secretion, so that the skin can reach a state of water and oil balance, and for people with oily skin and mixed skin, it has a better cleaning and oil control effect.

In summary, polyethylpyrrolidone in the mask mainly plays the role of moisturizing and moisturizing, accelerating the penetration of ingredients and reducing greasy feeling, which is suitable for various skin types.