Aloe (Aloe vera) vs Calendula (Calendula officinalis)

Aloe (Aloe vera)

Calendula (Calendula officinalis)

About

Aloe vera (syn. A. barbadensis) is a succulent commonly grown as a potted plant, notable for its thick, fleshy leaves that contain two distinct medicinal components. Historically, the inner clear gel was used for skin conditions and to promote wound healing (NCCIH), while the bitter yellow sap from the leaf base, often called “bitter aloes,” is a strong laxative.

Calendula (Calendula officinalis) has bright orange daisy-like flowers.

Safety & precautions

The outer leaf sap contains anthraquinone glycosides (like aloin) that act as a strong stimulant laxative; NCCIH notes that in 2002 the FDA required aloe latex to be removed from over-the-counter laxative products because of a lack of safety data. Liver: Oral aloe leaf extracts have been tied to cases of acute hepatitis (NCCIH), and LiverTox rates oral aloe a likely but rare cause of liver injury. Pregnancy: NCCIH says aloe gel, latex, or whole leaf extract taken by mouth may be unsafe during pregnancy and while breastfeeding. Some herbalists advise that children and older adults not drink aloe juice containing the strong laxative compounds. Avoid internal use if suffering from kidney disease or hemorrhoids. Concentrated or unfiltered products (containing the outer rind) can be irritating.

Internal Use & Pregnancy: Not advised during pregnancy when taken internally. Topical Use: Allergic skin reactions may occur. General Note: Calendula has a mild estrogenic effect and may influence menstruation.

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