Hydrogenated Dimer Dilinoleyl/Dimethylcarbonate Copolymer

Hydrogenated Dimer Dilinoleyl/Dimethylcarbonate Copolymer is a synthetic polymer derived from plant-based linoleic acid and carbonate chemistry. It is designed to function as an emulsion stabiliser—helping to keep oil and water phases mixed uniformly throughout a formulation—whilst also offering skin-conditioning properties.This ingredient belongs to a class of film-forming polymers commonly used in skincare and cosmetic products. Its structure allows it to create a light, breathable layer on the skin surface without leaving a heavy or occlusive feel.

This polymer works by positioning itself at the oil–water interface within a formulation, anchoring emulsion droplets and preventing them from separating. This stabilising action keeps the product uniform and ensures even delivery of other actives to the skin.On the skin itself, the polymer's film-forming properties create a thin, flexible protective layer. This can help lock in moisture and shield the skin from environmental stressors, though the effect is typically mild and supportive rather than occlusive.

This ingredient is most effective as part of a balanced formulation. It is typically used at low concentrations and does not require special application technique. It works well in both morning and evening routines, and can be layered with other skincare products without concern. Allow formulations containing this polymer a moment to set on the skin for optimal barrier benefit.

Generally well-tolerated in skincare products. Allergic contact sensitisation is rare, and it is considered safe for use across most skin types, including sensitive skin.