Castor oil (Ricinus communis) is a thick, glossy powerhouse with a history as rich as its texture. Extracted from the seeds of the castor plant, this oil has been used for centuries—dating back to ancient Egypt, where it was prized for its healing and beauty benefits. From Cleopatra’s eye treatments to traditional Ayurvedic remedies, castor oil has long been celebrated for its ability to nourish skin, promote hair growth, and even soothe aches and pains.
In soap making, castor oil is a lather lover’s dream! It has a unique ability to boost and stabilize bubbles, creating a rich, creamy, and luxurious foam that makes handmade soap feel extra indulgent. Because it’s highly humectant, it draws moisture into the skin, preventing soaps from feeling too drying. Though it’s a soft oil that works best when blended with harder oils and butters, even a small amount can make a big impact in creating a conditioning and bubbly bar.
For skincare, castor oil is deeply hydrating and packed with ricinoleic acid, a rare fatty acid with natural anti-inflammatory and antimicrobial properties. It’s often used to soothe dry, irritated, or acne-prone skin and is a go-to ingredient for oil cleansing, as it helps dissolve excess sebum while replenishing moisture. While its thick texture may feel too heavy for some, it’s surprisingly non-comedogenic (rated around 1), making it suitable for most skin types when used in moderation. High-quality, cold-pressed castor oil can be a little pricier due to the careful extraction process, but when you see it in a product, you know you’re getting an ultra-nourishing, lather-boosting treat!
Here are a few of our products featuring this ingredient:
