Dextrin Palmitate

Dextrin palmitate is a synthetic compound derived from dextrin (a carbohydrate polymer) combined with palmitic acid (a naturally occurring fatty acid). In skincare formulations, it functions as a thickening agent, emulsifier and anticaking agent, helping to stabilise the texture and consistency of products, particularly oil-based systems.It works by modifying the rheology (flow and texture) of formulations, allowing brands to create gels, serums and sunscreens with improved stability and application feel. Its primary role is cosmetic rather than therapeutic.

Dextrin palmitate acts as a rheology modifier, meaning it changes how a product flows and feels. By thickening the oil phase of a formulation, it can improve how evenly products spread across the skin and how long they remain on the surface before absorbing.In sunscreen formulations specifically, research suggests that thickening the oil phase can enhance how well UV filters are distributed across the skin, supporting more consistent sun protection coverage.

Dextrin palmitate is used at very low concentrations in finished products (typically well under 1%), so consumers are unlikely to need to adjust usage based on this ingredient alone. It is most commonly found in sunscreens, oil serums and gel-based formulations. Use products containing it as directed on the label.

Dextrin palmitate is generally well-tolerated and is approved for use in cosmetics across major regulatory bodies. Some sources suggest it may potentially feed fungal acne in susceptible individuals, though this evidence is anecdotal rather than clinically proven; patch testing is advisable if you have a history of fungal acne.