Which common product ingredient acts as a humectant to promote desquamation?

Glycerin is known for its effective humectant properties, which means it has the ability to attract moisture from the environment and bind it to the skin. This quality promotes hydration, creating a conducive environment for the skin's natural exfoliation process, also known as desquamation. By helping to retain moisture, glycerin facilitates the shedding of dead skin cells, ultimately enhancing the skin's texture and appearance.

Petrolatum, while effective for creating a barrier on the skin and preventing moisture loss, does not have the same moisture-attracting properties as glycerin. Coconut oil primarily acts as an emollient, providing lubrication and softness but is not specifically recognized as a humectant in the same way as glycerin. Aloe vera, though beneficial for its soothing and hydrating properties, does not function primarily as a humectant to promote desquamation like glycerin does. Thus, glycerin stands out due to its specific action of enhancing hydration and supporting the natural exfoliation of the skin.