There is provided a long-wearing powder-based cosmetic or personal care composition. The composition comprises a thermoplastic elastomer, such as a styrene-isobutylene-styrene (SIBS) triblock copolymer, a non-volatile oil, and a film forming polymer comprising a polypropylene glycol (PPG) backbone.本發明提供一種以粉末為基質之持久性化妝品或個人護理組合物。該組合物包含熱塑性彈性體(如苯乙烯-異丁烯-苯乙烯(SIBS)三嵌段共聚物)、非揮發性油、及含有聚丙二醇(PPG)主鏈之成膜聚合物。