Brassica Campestris Sterols

Brassica campestris sterols are plant-derived lipids extracted from rapeseed oil. Sterols are naturally occurring compounds found in plant cell membranes; when isolated and refined, they function as skin conditioning agents in cosmetic formulations.In skincare, these sterols work primarily as emollients — ingredients that soften and smooth the skin surface — and contribute to the overall conditioning effect of a formula. They're used in relatively small concentrations and are present in a minority of skincare products.

Brassica campestris sterols mimic some of the lipid architecture of the skin's natural lipid barrier. The skin barrier consists of cholesterol, fatty acids, and ceramides; plant sterols have a similar molecular structure to cholesterol and can integrate into skin's outer layers, helping to seal in moisture and maintain barrier integrity.As emollients, they form a thin, occlusive film on the skin surface without feeling heavy. This action reduces transepidermal water loss (TEWL) and improves the skin's feel and appearance.

Brassica campestris sterols are typically found as part of the conditioning phase of formulations — serums, moisturisers, and oils — rather than as standalone active ingredients. They work quietly alongside other emollients and don't require special application techniques. Use them as you would any other moisturising product, applying to clean skin morning and evening or as desired.

Brassica campestris sterols are generally well-tolerated and rarely cause irritation or sensitisation. Those with known plant oil sensitivities should patch test first, though reactions are uncommon.