Ricinus Communis Seed Oil/Castor Seed Oil

TL;DR. This ingredient is an emollient and conditioning oil that adds cushion, shine, and occlusive slip to skin, hair, lip, and color formulas. Its high viscosity also helps suspend pigments and improve gloss in anhydrous products.

What does Ricinus Communis Seed Oil/Castor Seed Oil do in a cosmetic formula?

This ingredient is an emollient and conditioning oil that adds cushion, shine, and occlusive slip to skin, hair, lip, and color formulas. Its high viscosity also helps suspend pigments and improve gloss in anhydrous products.

Is Ricinus Communis Seed Oil/Castor Seed Oil clean?

From a clean-beauty perspective, it is broadly accepted, well tolerated for most users, and not a common restricted-list ingredient. Sensitivity is uncommon, and refining quality matters because residual it proteins should be minimized in cosmetic-grade material.

Is Ricinus Communis Seed Oil/Castor Seed Oil sustainable?

This material is plant-derived, renewable, and readily biodegradable. Supply-chain review is still useful because cultivation and processing can vary by region, labor practice, and agricultural input intensity.

Is Ricinus Communis Seed Oil/Castor Seed Oil COSMOS-approved?

It is permitted under COSMOS-natural and COSMOS-organic when sourced and processed according to the standard. It fits Green Chemistry well when mechanically pressed or gently refined, since it uses renewable feedstock, has good biodegradability, and can be produced with limited solvent burden.

How does Ricinus Communis Seed Oil/Castor Seed Oil work chemically?

The molecule profile is mainly triglycerides rich in a hydroxylated C18:1 fatty acid, which explains its unusual viscosity, polarity, and strong pigment-wetting behavior compared with many it oils. Typical use ranges are about 1 to 10% in creams and hair products, higher in lip and anhydrous color products, and antioxidants are often paired with it because the unsaturated bonds can oxidize over time.

Last updated 2026-05-13