The present application relates to particles, which can be produced by a method including a first step as follows: in the absence of a solvent, dissolving capsaicin and / or extracts from fruits of Guinea pepper containing capsaicin with hydrophobic polymerizable vinyl monomers to prepare a hydrophobic solution and then dispersing the hydrophobic solution in water； further, in the presence of an oil-soluble polymerization initiator, polymerizing free radicals of the polymerizable vinyl monomers to produce polymers. The particles have a phase separation structure, formed by matrix having the polymers and domains having capsaicin and / or extracts separating from the matrix.一種粒子，其可藉由具備下述第1步驟之製造方法得到，得到該第1步驟是將辣椒素類及/或含有辣椒素類的自辣椒屬之果實萃取的萃取物，於溶劑不存在下，以疏水性的聚合性乙烯單體溶解，調製疏水性溶液，使該疏水性溶液分散於水，於油溶性聚合起始劑的存在下，將聚合性乙烯單體進行自由基聚合而生成聚合物。粒子係具有相分離結構，該相分離結構是由包含聚合物之基質和與基質分離的包含辣椒素類及/或萃取物之結構域所形成。
