PROBLEM TO BE SOLVED: To provide a fibroblast proliferation promoter, an anti-ageing agent, a wrinkle and sagging ameliorating agent and a humectant each exhibiting an excellent fibroblast proliferation-promoting action and comprising an ingredient having stability and high safety against skin as an active ingredient.SOLUTION: A fibroblast proliferation promoter, an anti-ageing agent, a wrinkle and sagging ameliorating agent and a humectant each comprise acidic mucopolysaccharide produced by a marine bacterium, or its physiologically acceptable salt or a derivative as an active ingredient.COPYRIGHT: (C)2014,JPO&INPIT【課題】優れた線維芽細胞増殖促進作用を有し、安定性および皮膚に対する高い安全性を有する成分を有効成分とする線維芽細胞増殖促進剤、抗老化剤、シワ・たるみ改善剤、および保湿剤を提供することを課題とする。【解決手段】海洋細菌の産生する酸性ムコ多糖類またはその生理学的に許容される塩もしくは誘導体を有効成分として含有する線維芽細胞増殖促進剤、抗老化剤、シワ・たるみ改善剤、および保湿剤。【選択図】図1
