Hey everyone! Your grandparents probably always kept castor oil around the house – and for good reason. Ours isn’t just any castor oil: it’s Certified Organic, hexane-free, unrefined and cold-pressed, made the way castor oil should be, and it now comes in an amber glass jar to help preserve its integrity.
1. 90% Ricinoleic Acid
What makes castor oil unique is that it’s nearly 90% ricinoleic acid, a rare unsaturated fat that gives it its powerful, wide-ranging benefits.
2. Joints, Muscles and Cramps
Clinical research shows castor oil has powerful anti-inflammatory and pain-relieving properties. Many people massage it into joints and muscles to ease soreness, and others use it for monthly cycle comfort. → See Joint Health.
3. Skin Comfort and Moisturizing
Castor oil is antifungal and antimicrobial and offers meaningful immune support, which is one reason some people apply it to dry, flaky patches. Ricinoleic acid is a humectant, sealing hydration into the skin and reducing moisture loss – that’s why it’s in so many lotions, makeup and cleansers. You can use it on its own as a natural moisturizer, but it’s very thick, so many people mix it with coconut, almond or olive oil for a more spreadable blend. → See Topical Skin Care.
4. Scalp and Dandruff
Castor oil is commonly used as a natural anti-dandruff remedy, nourishing the scalp and supporting healthier hair.
5. Longer, Thicker Eyelashes
Each eyelid has about 100–200 hair follicles, cycling between growth and rest phases. Thinning or losing lashes is linked to a deficiency of a specific signaling molecule, prostaglandin F2alpha – the same pathway a common lash-growth medication targets. Two natural things can help:
- Ricinoleic acid, applied topically, may help correct that prostaglandin deficiency and thicken and strengthen lashes with the perfect oil consistency.
- Zinc, taken internally. You can’t make this prostaglandin without zinc, and lashes are protein, which needs zinc to build. In one study, mice fed aspirin (which blocks prostaglandins) showed the same effect as zinc deficiency. → See Eidon Ionic Zinc.
Use castor oil topically and zinc internally, and you have great potential for longer, thicker lashes. → See Hair Loss.
How to Use It
Use castor oil topically: massage it into sore joints and muscles, apply it to dry skin (mixed with a lighter oil if you like), work it into the scalp, or brush a little onto your lashes. Before using it near your eyes, test a small amount on your skin to make sure you’re not sensitive – most people tolerate it well. It can be taken internally in small amounts, but that’s mostly as a laxative.
Castor Oil FAQ
What makes this castor oil high quality?
It’s Certified Organic, hexane-free, unrefined and cold-pressed, in an amber glass jar.
Does castor oil help eyelashes grow?
Matt explains its ricinoleic acid may help correct a prostaglandin F2alpha deficiency linked to thinning lashes. He pairs it with zinc taken internally.
Can I use castor oil on sore joints?
Clinical research shows anti-inflammatory and pain-relieving properties, and many people massage it into joints and muscles.
Is castor oil a good moisturizer?
Yes. It’s a humectant that seals in moisture. Because it’s thick, many people blend it with coconut, almond or olive oil.
Is this medical advice?
No. This is educational information from Matt’s 30+ years with superfoods. Please talk with your healthcare practitioner about any health concern.
From Matt’s Newsletters
- Jul 23, 2026 – Organic Castor Oil in Amber Glass
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Organic Castor Oil · pairs with Eidon Ionic Zinc
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.