The present invention relates to topical composition on skin that reduces the appearance of wrinkles and lines. The present invention comprises one or more plant extracts having muscle relaxant activity. The present invention further comprises one or more penetration enhancers for promoting permeation of active ingredients through skin. The present invention also provides a cosmetic composition comprising a Kava extract to reduce the appearance of wrinkles and lines in a person`s skin. The Kava extract is obtained from Piper Methysticum root, leaf, stem, or their combinations thereof. The Kava extract is extracted by using polar solvents, non-polar solvents, or supercritical fluid such as carbon dioxide. In certain embodiment of the invention, Kavalactones are the active substances. The amount of Kavalactones in the compositions of the present invention is about 1% to about 90% by weight of the Kava extract.本發明係關於減少皺紋及紋路出現的皮膚局部用組合物。本發明包含一或多種具有肌肉鬆弛劑活性之植物提取物。本發明進一步包含一或多種促進活性成分經由皮膚滲透之滲透增強劑。本發明亦提供一種包含減少人類皮膚出現皺紋及紋路之卡瓦(Kava)提取物的化妝品組合物。卡瓦提取物係從卡瓦胡椒(Piper Methysticum)根、葉、莖或其組合中獲得。卡瓦提取物藉由使用極性溶劑、非極性溶劑或諸如二氧化碳之超臨界流體來提取。在本發明之某些實施例中，卡瓦內酯(Kavalactone)為活性物質。本發明組合物中之卡瓦內酯的量為卡瓦提取物之約1重量%至約90重量%。
