The effect and efficacy of propylene glycol on the skin

In many cosmetics, its active ingredient is propylene glycol, which is colorless, sticky and hygroscopic, and is one of the cosmetic ingredients, and then some users worry about whether it is harmful to the body. So let's take a look at the effects of propylene glycol on the skin.
Basically harmless.
Propylene glycol is a transparent, colorless, viscous, hygroscopic fatty alcohol liquid, such as ointments, masks, lotions, facial cleansers, essences, makeup removers, moisturizing lotions, various extracts, etc. , which can be seen in cosmetics. It is a very common moisturizing material in makeup remover. Its function is to help water molecules dissolve facial dirt and avoid rapid drying of the skin during makeup removal. Also commonly used in lotions and serums, it not only moisturizes but also helps skin actives penetrate into the skin. In addition, it has antiseptic properties but is irritating to human skin and eyes. It is a small molecule moisturizing agent, which can leave moisture in the stratum corneum, and the water absorption rate is not high.
Propylene glycol also has certain side effects on the skin.
The first is the irritating effect. Some people will feel burning and itching on the face when using it. This is a mild allergic reaction. When this symptom occurs, stop using it.
Again, degreased. Propylene glycol has fat-soluble properties, strong permeability and high solubility. Excessive use can cause certain damage to the skin. Long-term use of high-dose propylene glycol can affect the skin epidermis and sebum structure.
There is also the possibility of dermatitis. Propylene glycol is irritating to the skin and mucous membranes, and can be highly irritating in high concentrations and may cause skin redness, rash, itching and roughness. Adding small doses of propylene glycol had no effect on the skin.
Propylene glycol is a very common ingredient in skin care, and it has been proven in scientific tests that it has a good effect on skin moisturizing. It is a commonly used ingredient in many cosmetics, and it can be said that the effect is good.