Herbier des Anciens — Detailed Notebook

castor bean

Ricinus communis

Please read before use: the information below describes traditional and informational uses — it does not replace the advice of a healthcare professional. In case of doubt, pregnancy, breastfeeding, ongoing treatment, or use in children, seek advice before use.

Enhanced precautions for this plant: Castor bean seeds are highly toxic (presence of ricin) and a single chewed seed can be dangerous, particularly in children: never consume raw or whole seeds. Castor oil for internal use must be extracted and purified according to strict procedures; any internal use should remain occasional and supervised by a healthcare professional. Contraindicated in pregnant women (risk of triggering labor) unless under medical advice, and not recommended for young children. Prolonged or repeated internal use may cause digestive imbalances, cramps, and bowel dependence; never exceed occasional use.

Oil — Seeds (extracted and purified oil)

Cold-pressed castor oil

The oil is obtained by cold-pressing the seeds, then carefully filtered to remove any trace of ricin. It is stored in an opaque bottle, away from light and heat. Dosage should be validated with a healthcare professional or recognized pharmacopoeia before use.

Infused oil for massage — Seed oil

Nourishing hair application

A few drops of castor oil are gently warmed between the palms then massaged into the scalp and hair lengths, before leaving on for about thirty minutes under a warm towel. Rinse afterwards with a gentle shampoo. Dosage should be validated with a healthcare professional or recognized pharmacopoeia before use.

Oil for topical application — Seed oil

Emollient ointment for dry skin

Pure oil is applied in a light layer to dry or rough areas, morning or evening, in gentle massage until completely absorbed. Dosage should be validated with a healthcare professional or recognized pharmacopoeia before use.

Where to find it

Obtaining the plant

Purified castor oil is readily available in herbal shops, pharmacies, and organic stores; the plant itself, often grown as an ornamental in mild climates, should never be harvested or prepared at home due to the toxicity of its seeds.

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