Castor oil is sustainably produced from the seeds of the castor plant (Ricinus communis).
It belongs to the Euphorbiaceae family.
Castor oil’s composition of fatty acids differs from other vegetable oils, due to its rather unusual and unique chemistry.
The castor bean's oil-rich seeds mainly contain a fatty acid triglyceride called ricinoleic acid, which is an omega-9 monounsaturated fatty acid.
Since this fatty acid is more polar (water-attracting), than other 18-carbon chain length fatty acids, it is more easily absorbed by the skin and also more skin hydrating.
Other common oils, like almond, avocado and olive, contain high and medium amounts of oleic and linoleic fatty acids and various smaller amounts of others like palmitic acid and stearic acid.
Castor oil however consists of +-90% ricinoleic acid.
Ricinoleic acid can be beneficial for moisturising the skin, as it reduces trans-epithelial water loss, which leads to skin dehydration.
Properties: Castor oil’s use in the cosmetic industry has grown significantly.
Research into the dermatological benefits of castor oil continues.
Its antibacterial, antifungal, and moisturising properties make it a popular natural treatment for common skin ailments.
Manufacturers often add it to products like lotions, lip balms, makeup, cleansers, and soaps.
The ability to inhibit bacterial and fungal activity makes castor oil a popular ingredient in cleansing and purifying skin and hair oils.
It may reduce foot fungal infections, assist in treating acne-prone skin, and improve hair strength and growth.
Castor oil has shown anti-inflammatory, antioxidant, and wound-healing effects.
Its other name ‘Palma Christ’ (hand of Christ) is a reference to the healing properties of this oil.
In addition to its other values, it has emollient properties, and its excellent skin penetration ability allows it to transport nutrients into the body by external application.
Being a very thick oil with purifying properties, it is recommended to dilute it with lighter oils such as Jojoba or Kalahari melon seed oil.
Facial application should be approached with caution as adverse reactions may occur.
Patch testing is recommended.