Hydrolyzed Grape Fruit Extract

Hydrolyzed grape fruit extract is a processed form of grape fruit cell wall components, created through enzymatic breakdown during fermentation. This process breaks down the structural polymers found naturally in grape skins, yielding smaller molecular fragments that can be incorporated into skincare formulations.In skincare products, it functions as a humectant and skin conditioning agent. Humectants work by attracting water from the environment and deeper skin layers, helping to draw and bind moisture to the stratum corneum—the skin's outermost layer.

As a humectant, hydrolyzed grape fruit extract has a chemical affinity for water molecules. When applied to skin, it attracts moisture from the surrounding air and from deeper layers of the epidermis, then binds this water to the outer skin layer. This process helps maintain hydration and can temporarily plump the appearance of the skin.The hydrolyzed form—broken down into smaller fragments through fermentation—is thought to be more readily absorbed or distributed within formulations compared to whole fruit extracts.

Hydrolyzed grape fruit extract is typically found in serums, toners, and moisturisers at low concentrations. It works well layered with other hydrating ingredients and is generally most effective when applied to damp skin, as this provides additional moisture for the humectant to draw from. It pairs well with occlusive ingredients (such as oils or butters) to seal in hydration.

Generally well-tolerated in cosmetic formulations. Those with known grape sensitivity should check product ingredient lists, though sensitisation from topical use is uncommon.