What is a type of humectant commonly used in skincare?

The commonly recognized type of humectant used in skincare is glycerin. Humectants are ingredients that attract moisture from the environment or deeper layers of the skin and bind it to the skin’s outer layer, which helps to keep the skin hydrated and plump. Glycerin, a well-known humectant, is effective due to its ability to hold moisture, making it invaluable in many skincare formulations aimed at maintaining skin hydration.

While seaweed can contribute beneficial nutrients and some moisture, it doesn’t primarily function as a humectant like glycerin does. Petrolatum is more of an occlusive agent that creates a barrier to prevent moisture loss instead of attracting moisture. Similarly, lanolin, while moisturizing, does not primarily serve as a humectant but rather as an emollient that provides a protective layer on the skin.

Understanding the role of these ingredients helps to clarify why glycerin stands out specifically as a humectant in skincare. It’s widely used because of its efficacy in enhancing hydration levels and improving overall skin texture.