San Shield

San Shield Encyclopedia

Propylene Glycol

Propylene Glycol is a multifunctional compound widely used in various skincare and cosmetic products, and it plays an important role in San Shield skincare.

Firstly, propylene glycol has excellent moisturizing properties. It is a solvent with water-holding capabilities that help the skin absorb and retain moisture. When applied to the skin, propylene glycol attracts water molecules from the air and maintains them on the skin’s surface, increasing the skin’s hydration. This makes propylene glycol a highly effective moisturizer, capable of nourishing dry skin and reducing water loss from the skin.

Secondly, propylene glycol also has soothing properties. It can calm and alleviate skin sensitivity and discomfort, especially for issues like dryness, itching, and redness. The soothing effect of propylene glycol is mainly achieved by providing additional moisture and hydration, helping to balance the skin’s moisture and oil levels and reducing sensitivity to irritants. Therefore, propylene glycol is often used in skincare products that cater to the care and repair of sensitive or damaged skin.

Additionally, propylene glycol contributes to adjusting the texture of the product and enhancing its absorption. As a solvent, propylene glycol can dissolve and dilute other ingredients, making the product easier to apply and absorb. This improves the user experience, allowing for smoother application and even distribution on the skin. Furthermore, propylene glycol can bind with the skin’s surface layer, known as the stratum corneum, increasing the product’s stay-time on the skin and enhancing the absorption of other active ingredients.


It’s important to note that everyone’s reaction to these ingredients may vary. It is recommended to perform a patch test on a small area of skin before using any new product to ensure there are no adverse reactions.