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The claim

Castor oil can dissolve tumours, cure arthritis and detox the liver

Rating

Contrary to what social media influencers may claim, castor oil cannot dissolve tumours, cure arthritis or detox the liver; at best, it may provide short-term relief from constipation.

Reviewed by First Check ↗ ·

Original fact check ↗

PeakMetrics research summary

Based on related reporting.

Research from related reporting says castor oil’s only medically recognized and FDA-approved use is short-term relief of occasional constipation. It also says claims that castor oil detoxes the liver or shrinks tumors have no scientific merit; the supplied research does not address arthritis.[S1]

Research date:

Sources and attribution

  1. [original] First Check original review

    Original review · Retrieved October 17, 2026

  2. [S1] Boron, Castor Oil and Borax

    Additional research · Retrieved October 17, 2026