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28 May 2026

Castor oil plant: why this toxic plant from your garden produces the miracle oil for joints and dry skin

The castor bean plant, often pulled out as a weed, hides a well-kept secret: its seeds produce an oil with moisturizing properties recognized since Egyptian antiquity. Rich in ricinoleic acid, this thick substance is now studied for its action on joint discomfort and dry skin. But why does this toxic plant yield such a sought-after oil?

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Illustration image © TopTenPlay
Symbolbild © TopTenPlay

Present in gardens, vacant lots, and along roadsides…

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