PURPOSE: A composition for preventing and treating psoriasis is provided to be used as cosmetics, a cleaning agent, drugs, and foods by having excellent psoriasis-treating effect.CONSTITUTION: A composition for preventing and treating psoriasis includes at least one extract selected from Camellia Sinensis leaf extract and Reynoutria japonica as an active ingredient. The extract is obtained by water, ethanol, or a mixed solvent thereof. The composition is a cosmetic composition. The composition is a cleaning agent composition. The composition is a drug composition. The composition is a food composition.COPYRIGHT KIPO 2013본 발명은 동백나무 잎 추출물과 호장근 추출물을 이용한 건선 개선제 조성물을 개시한다. 동백나무 잎 추출물과 호장근 추출물은 건선 환자를 대상으로 한 임상평가에서 뚜렷한 건선 개선 효과를 보여주며, 특히 동백나무 잎 추출물과 호장근 추출물이 모두 포함된 경우에 뛰어난 건선 개선 효과를 보인다.
