Ricinus Communis (Castor) Seed Oil ●
TL;DR. This ingredient is a dense emollient and conditioning oil that adds gloss, cushion, and water-loss reduction in skin, hair, lip, and color products. It also helps wet and disperse pigments in makeup and balm formats.
What does Ricinus Communis (Castor) Seed Oil do in a cosmetic formula?
This ingredient is a dense emollient and conditioning oil that adds gloss, cushion, and water-loss reduction in skin, hair, lip, and color products. It also helps wet and disperse pigments in makeup and balm formats.
Is Ricinus Communis (Castor) Seed Oil clean?
From a clean beauty perspective, this ingredient is generally well-tolerated and has little restricted-list friction. Sensitivity is uncommon, but heavier textures can feel occlusive on some skin types.
Is Ricinus Communis (Castor) Seed Oil sustainable?
This ingredient is plant-derived, renewable, and readily biodegradable. Its sustainability profile depends on agricultural practices, traceability, and whether processing uses lower-impact extraction and refining methods.
Is Ricinus Communis (Castor) Seed Oil COSMOS-approved?
It is permitted under COSMOS-natural and COSMOS-organic when sourced and processed to the standard. It fits Green Chemistry principles well because it is renewable, biodegradable, and can be produced with relatively simple physical refining steps.
How does Ricinus Communis (Castor) Seed Oil work chemically?
This material is a triglyceride oil dominated by a hydroxylated C18:1 fatty acid, which gives it unusually high viscosity, polarity, and pigment-wetting ability compared with many other vegetable oils. It is typically used from low single-digit levels in emulsions to much higher levels in lip oils, balms, and glosses, and it is best protected from heat, light, and air to limit oxidation.
Last updated 2026-05-13