For thousands of years, castor oil has been used externally to support the skin, hair, joints, and lymphatic system. In 2026, its value is increasingly understood not as a relic of folk medicine, but as a highly effective transdermal therapy—delivering targeted support directly to tissues while bypassing the digestive tract.
The primary fatty acid in castor oil, ricinoleic acid, is widely studied for its anti-inflammatory and circulation-supporting properties. When applied topically, it penetrates deeply into the dermal layers, helping calm irritated tissues and support local blood flow.
In recent years, many Earth Clinic users have focused application over the upper abdomen and solar plexus. This region is closely associated with autonomic regulation, and users frequently report improvements in stress-related digestion, abdominal tension, and sleep quality when packs are used consistently.
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