Glycerin is a commonly used ingredient in skin care products, especially in anti-aging face care, due to its moisturizing and humectant properties. Glycerin, also known as glycerol, is a sugar alcohol that is water soluble and found naturally in human skin. It is able to attract water to the skin and hold it, and therefore maintain optimal hydration and prevent skin dryness, which is often associated with premature aging of the skin.

When glycerin is applied to the skin, it acts as a moisturizing agent by forming a barrier on the surface of the skin to prevent water loss through evaporation.

This helps maintain the skin's natural moisture, which can help improve skin texture, reduce the appearance of fine lines and wrinkles, and make skin more supple and firm.

Additionally, glycerin may also have beneficial effects on the skin barrier by enhancing the skin's ability to retain water and protect against external aggressors, such as pollution and UV rays. It helps calm sensitive and irritated skin by reducing inflammation and promoting wound healing.

In short, glycerin is a key ingredient in anti-aging face care due to its moisturizing and humectant properties, which help keep the skin hydrated, supple and firm, as well as its beneficial effects on the skin barrier and protection. against external attacks.