Oleoyl Dipeptide-15

Oleoyl Dipeptide-15 is a synthetic peptide—a short chain of amino acids—modified with an oleoyl (fatty acid) component. Peptides are fragments smaller than proteins, designed to penetrate the skin more readily and interact with cellular structures. This ingredient functions primarily as a skin conditioning agent, meaning it helps improve the texture, feel, and hydration state of the skin surface.The oleoyl modification gives this peptide lipophilic (fat-loving) properties, which may help it integrate into the skin's natural lipid barrier and support moisture retention. It appears in skincar…

Oleoyl Dipeptide-15 works by combining two mechanisms. As a peptide, it can interact with skin cells and their signalling pathways, potentially stimulating natural conditioning processes. The oleoyl (oleic acid) tail gives it amphiphilic properties—it can interact with both water and oil components of skin—which allows it to integrate into the lipid-rich outer layers of the skin barrier.By modifying the lipid environment at the skin surface, it may help optimise moisture retention and improve how the skin feels and appears, without providing active anti-ageing or transformative effects beyo…

Use as part of your regular moisturising routine. It is typically found in serums, creams, and lotions and can be layered with other skincare products. There is no evidence suggesting it needs to be used at specific times or intervals—daily use is standard where it appears in formulations.

Oleoyl Dipeptide-15 is generally well-tolerated in cosmetic concentrations. As with any ingredient, sensitivity is possible in individuals with known peptide or lipid sensitivities, though this is uncommon.