SYNERGISTIC EXTRACT OF PALMARIA PALMATA AND OF JASMINE, COMPOSITIONS COMPRISING SAME AND USES THEREOF

The present invention relates to a synergistic extract of Palmaria palmata and of flowering tops of jasmine, obtained after an aqueous extraction of Palmaria palmata, in which a maceration of the flowering tops of jasmine is subsequently carried out, the ratio between the dry weight of Palmaria palmata and the dry weight of the flowering tops being between 40/60 and 95/5. The present invention also relates to a process for obtaining such a synergistic extract and to cosmetic compositions comprising such an extract as active agent. Finally, the invention relates to the cosmetic use of such a composition for combatting the signs of ageing and for improving the elasticity of the skin, by promoting the maintaining of the stem nature of adult dermal stem cells (SKPs). 本发明涉及掌状红皮藻(Palmaria palmata)和茉莉(jasmine)花头的协同提取物，在对掌状红皮藻进行水提取(随后在其中进行茉莉花头的浸渍)之后获得该协同提取物，掌状红皮藻的干重与花头的干重之比为40/60-95/5。本发明还涉及用于获得此种协同提取物的方法以及包含此种提取物作为活性剂的化妆品组合物。最后，本发明涉及此类组合物通过促进维持成体真皮干细胞(SKP)的干性特征而用于抵抗皮肤老化迹象和用于改善皮肤弹性的化妆品用途。