Castor Oil

Castor Oil | Cold Pressed Carrier Oil

Castor Oil is a cold pressed carrier oil extracted from the seeds of the castor plant (Ricinus communis), a hardy plant that grows widely across India and other tropical regions. It is one of the most recognised and widely used carrier oils across the cosmetic, personal care, and soap making industries. The oil is pale yellow in colour with a mild, neutral scent and a notably thick, viscous consistency compared to most other carrier oils. At Maduras Herbals, we supply Castor Oil as a raw material for cosmetic manufacturers, DIY formulators, hair care brands, and skin care product developers looking for a dependable, multi-purpose carrier oil from India.

Botanical and Local Names

Botanical Name: Ricinus communis
English Name: Castor Oil
Hindi Name: Arandi Tel
Tamil Name: Amanakku Ennai
Telugu Name: Amudam Nune
Malayalam Name: Avanakku Enna
Kannada Name: Haralu Enne

Key Properties

• Cold pressed from castor seeds with no heat and no chemical solvents involved
• Thick, viscous texture distinct from lighter carrier oils, often blended with other oils for easier application
• Naturally rich in essential fatty acids, predominantly ricinoleic acid
• Unrefined and supplied in its natural state without bleaching or deodorisation
• Widely recognised across hair care, skin care, and soap making industries
• Functions as a natural humectant, helping to attract and retain moisture in formulations
• Compatible with other carrier oils, butters, and oil-phase ingredients

About Castor Oil

Castor oil is cold-pressed from the seeds of the castor plant (Ricinus communis), native to India, Eastern Africa, and the Mediterranean basin. India, particularly Gujarat, is today the world's largest producer of castor oil, making it one of the few genuinely Indian-origin carrier oils available at commercial scale. The oil is immediately recognisable by its exceptionally high viscosity and slow absorption, two characteristics that make it behave quite differently from most other carrier oils and give it a unique set of formulation uses.

What drives castor oil's properties is its dominant fatty acid, ricinoleic acid, which makes up roughly 87 to 90% of its composition. Ricinoleic acid is an omega-9 unsaturated fatty acid with a distinctive chemical structure that makes it more polar than most other fatty acids, giving castor oil genuine humectant properties alongside its well-known emollient and lubricating character. It also brings anti-inflammatory, antimicrobial, and moisturising activity. Beyond ricinoleic acid, castor oil contains small amounts of phytosterols and vitamin E. One important reassurance for formulators: although the castor plant's seeds contain the toxins ricin and ricinine, these compounds are not extracted into the oil. They remain in the solid leftover material from pressing and are not a concern in the finished oil.

Working with Castor Oil in Your Formulations

Castor oil's ability to wet and disperse pigments evenly, while staying put in the application area rather than spreading outward, makes it particularly valuable in colour cosmetics. It provides shine and lubrication to lipsticks, lip gloss, and eye mascaras, and is a staple ingredient in these product types for exactly that reason. As a rich emollient and humectant it also works well in cleansers, shampoos, conditioners, moisturisers, and makeup removers. While usage can technically go up to 100%, its high viscosity means it is rarely used as a standalone base and is more commonly blended with lighter oils to achieve the right texture.

Quality & Formulation Notes

No adverse effects or formulation restrictions are documented for castor oil. The one practical formulation note is its viscosity, as it is significantly thicker than most carrier oils, so blend ratios and dispensing equipment need to account for that. No specific substitute exists for castor oil since its ricinoleic acid content and the humectant and pigment-dispersing properties that come with it are unique in the carrier oil world.

Applications

Hair Care Formulations: Hair oils, scalp treatments, eyelash and eyebrow serums, hot oil treatments, hair masks

Skin Care Formulations: Lip balms, body butters, massage oils, moisturising creams, dry skin formulations

Cosmetic and Soap Making: Cold and hot process soap making, mascara and eyeliner formulations, carrier base for essential oil blends, lotion and cream oil-phase ingredient

General Use: Bulk supply for cosmetic manufacturers, DIY skin and hair care kits, salon and spa product formulations

Packing and Storage

Store in a cool, dry place away from direct sunlight and heat. Keep the container tightly sealed when not in active use. Recommended storage temperature below 25°C. Refrigeration is acceptable for extended shelf life. Best before 12 months from packaging date. Natural variation in colour and viscosity between batches is characteristic of a cold pressed, unrefined oil.

Caution

Patch test is recommended before use on skin. In case of any allergic reaction, discontinue use and consult a dermatologist or physician.