Mahonia

s.a. Mahonia, common.

Originally native to North America, now also established in Europe, evergreen bushy shrub species of the mahonia genus, which belongs to the barberry family. Grows to a height of 1.8 m (Berberidaceae). The leathery leaves, up to 30 centimeters long, are imparipinnate. The flowers (March to June) are yellow. From August, spherical, reddish-brown edible berries are formed.

The alkaloids berberine, oxyacanthine and berbamine-containing extracts from the bark of mahonia are used in various anti-eczematous and antipsoriatic topicals.

In a prospective, non-randomized study, a cream containing 10% mahony extract was applied to patients with atopic eczema with clear success (Level of incidence: LOE-B). In the same indication, a combination cream (made from: mahony extracts, pansyherb (Violae herba cum flore) and water navelherb (Centellae asiaticae herba) did not show superiority over the vehicle.

Furthermore, there are numerous reports (without evidence) of success with psoriasis vulgaris. Satisfactory personal experiences are available on the "mild" seborrhoeic eczema of adults .

Various Externa (e.g. Rubisan® cream and ointment) contain Mahonia mother tincture in different applications and concentrations.

1. Donsky H et al (2007) Mahonia aquifolium extract for the treatment of adult patients with atopic dermatitis. Am J Ther 14: 442-446
2. Reuter J et al (2010) Which plant for which skin disease? Part 1: Atopic dermatitis, psoriasis, acne, condyloma, and herpes simplex. JDDG 10: 788-796
3. Wenigmann M. (2017) Phytotherapy medicinal drugs, phytopharmaceuticals, application. Urban & Fischer, pp. 152-153