Care Castor Oil Care Castor Oil is used for the relief of occasional constipation. Care Castor Oil is a mild laxative that promotes the movement of the bowels to relieve constipation. Ingredients Virgin Castor Oil BP (100% v/v). Directions Adults, the elderly & children over 12 years: take 2 to 4 x 5ml spoonfuls as required. Children 5 to 12 years: take 1 or 2 x 5ml spoonfuls as required. Not recommended for children under 5.