What are the applications of propylene glycol in cosmetics

Propylene glycol is widely used in cosmetics, mainly including the following aspects:
Moisturizing: Propylene glycol has hygroscopicity, which can absorb moisture from the air and lock in moisture in the skin, thus playing a moisturizing role. It can be added as a moisturizer to cosmetics to improve product moisturizing.
Promoting penetration: Propylene glycol can reduce the permeability of cell membranes, making it easier for drugs or active ingredients to penetrate the cell membrane and enter the body to exert their effects, thereby promoting the penetration of topical drugs.
Anti corrosion: Propylene glycol is a common cosmetic preservative that can prevent the proliferation of bacteria, fungi, and other harmful microorganisms by interfering with the growth cycle of microorganisms, thereby ensuring the safety and stability of cosmetics.
Lubrication: Propylene glycol can be used as a solvent and carrier in cosmetics, and its molecular structure gives it good wettability and smoothness. It can be used as thickener and lubricant in cosmetics, such as lotion, face cream, lipstick, eye shadow and other cosmetics.
Assisting other active ingredients: Propylene glycol has a good stabilizing effect on many commonly used active ingredients in cosmetics, helping to protect these ingredients from external environmental factors.
In summary, propylene glycol plays an important role in cosmetics, providing multiple functions and effects for cosmetics. However, when using cosmetics containing propylene glycol, attention should also be paid to the safety of the product and personal skin condition to avoid possible allergic or irritating reactions.