A 2021 review published in Clinical and Experimental Optometry has highlighted the therapeutic potential of castor oil in managing some of the most common eye surface problems — blepharitis, meibomian gland dysfunction (MGD), and dry eye disease (DED).

Understanding the Problem

Blepharitis, MGD, and dry eye disease are closely linked conditions that affect the eyelids and tear film. They can cause symptoms such as redness, irritation, burning, and a gritty sensation in the eyes. Many treatments — from artificial tears to warm compresses — offer temporary relief but often fail to address the underlying issues of lipid imbalance and inflammation.

How Castor Oil Helps

The review, conducted by researchers Emma Sandford, Alex Muntz, and Jennifer Craig, explains how castor oil, derived from the Ricinus communis plant, can help restore balance to the eye’s delicate surface.

Key findings include:

  • Improved tear film stability: Castor oil’s main fatty acid, ricinoleic acid, helps replenish the lipid layer of tears, reducing evaporation and dryness.

  • Enhanced comfort: Studies show that topical application of castor oil increases tear film thickness and improves lubrication, leading to fewer symptoms of dryness and discomfort.

  • Anti-inflammatory and antimicrobial benefits: Castor oil’s natural compounds help calm irritation, inhibit bacterial overgrowth, and may even assist in managing Demodex mites, a contributor to chronic eyelid inflammation.

  • Longer surface residence time: When applied to the ocular area, castor oil stays on the surface longer than most artificial tears, providing extended hydration and protection.

A Natural Option for Eye Surface Support

Castor oil is already well known in skincare and cosmetics for its hydrating and healing properties. This review suggests that it may also support ocular surface health, particularly when used in ophthalmic formulations or cold-pressed, pure forms suitable for topical application around the eyes (not inside the eye unless professionally prescribed).

Choosing a High-Quality Castor Oil

If you’re looking for a pure and natural option, cold-pressed castor oil is the preferred form for cosmetic and wellness use. It retains more of the beneficial compounds and avoids solvent residues found in cheaper refined oils.

For a trusted, pure source, Wonder Foods Organic Castor Oil is cold-pressed, hexane-free, and made from 100% natural plant material — ideal for topical use on skin, hair, nails, and gentle eye-area care.

The Takeaway

This Clinical and Experimental Optometry review adds to a growing body of research showing that castor oil offers multiple benefits beyond skincare. Its natural ability to stabilize tear film lipids, reduce inflammation, and improve eye comfort makes it a promising supportive therapy for people dealing with dryness, irritation, or eyelid inflammation.

Disclaimer:
Wonder Foods provides this post for educational purposes only. Please consult your optometrist or healthcare practitioner before applying any product near the eyes or making changes to your treatment routine.