Glyceryl glucoside is a moisturizing ingredient formed by the condensation of glycerin and glucose. In skincare, it is primarily used in products for dry, dehydrated, or compromised skin, as it can improve skin hydration and strengthen the skin barrier. (1)

In addition to its function as a humectant, recent studies suggest that glyceryl glucoside may promote the expression of aquaporin-3 (AQP3) in keratinocytes. AQP3 is an important water and glycerin channel in the epidermis. By rebalancing this channel, glyceryl glucoside can help regulate water distribution in the skin, reduce transepidermal water loss, and thus support the skin’s hydration and barrier function. (2,3)