Mahonia aquifolium extract, extraction process and pharmaceutical composition containing the same
A skin treatment composition comprising a Mahonia aquifolium extract in a liposome delivery system. The Mahonia aquifolium extract is present in the skin treatment composition in a range of from 5% to 20% by weight of the total composition. The skin treatment composition is particularly effective in the treatment of psoriasis, eczema and other dry skin conditions. The invention further provides a process for obtaining an extract of Mahonia aquifolium.
1. A skin treatment composition comprising an extract of Mahonia aquifolium in a liposome delivery system, wherein the extract comprises a hydroalcoholic extract of the bark and twigs of Mahonia aquifolium , which is obtained by extracting the bark and twigs of Mahonia aquifolium with a hydroalcoholic solvent at a pressure of 3–6 psi and a temperature of 40° C.–50° C.
2. A skin treatment composition as claimed in claim 1 wherein the extract of Mahonia aquifolium is present in a concentration of from 5% to 20% by weight of the total composition.
3. A skin treatment composition as claimed in claim 1 wherein the extract of Mahonia aquifolium is present in a concentration of 10% by weight of the total composition.