Detailed answer

Humectants are ingredients that attract and hold onto water molecules from the environment or deeper layers of the skin. When applied topically, they help to draw and retain moisture, which effectively hydrates dehydrated skin. Humectants work by forming a protective barrier on the skin's surface, preventing water loss through evaporation. This improves the skin's overall moisture balance, making it feel and appear more hydrated. Some common humectants used in skincare products include hyaluronic acid, glycerin, and sorbitol. It is important to note that while humectants are effective in hydrating dehydrated skin, they need to be paired with occlusive ingredients to seal in the moisture and emollients to soften and smooth the skin's texture.