What is the effect of glycerin in skincare products?

Glycerin is widely recognized in the skincare industry for its role as a humectant. This means it has the ability to draw moisture from the environment into the skin, which is crucial for maintaining hydration levels. When applied, glycerin attracts water molecules to the outer layer of the skin, helping to keep it plump and hydrated. This is especially beneficial in formulations aimed at dry skin or for products designed to provide a long-lasting moisturized feel.

While it’s true that glycerin acts as a moisturizer, it does so by enhancing the skin's ability to retain moisture rather than just functioning as a standalone moisturizing agent without any additional benefits. Also, it does not clarify the skin or act as a skin whitener; those processes involve entirely different ingredients and mechanisms. Glycerin's primary and most significant effect remains its humectant properties, making it a staple in a wide array of skincare products aimed at improving skin hydration and health.