This Hair bright purpose improves the bitter taste of Pureization Green tea extracts Ji I tastes in what. The characteristic of this Hair bright Pureization Green tea extracts is in what:(1) (A) Yang Mei Yellow ketone, (B) Quercetin and (C) Kaempferol containing have a Quality amounts and With (D) table No infanticide Child tea element No infanticides acid esters and have the ratio between the sum of Quality amounts As ((A)+(B)+(C))/((D)+(E))=0.0000001 ~ 0.010 containing for (E) No infanticide Child tea element No infanticide acid esters, (2) there are 0.01 ~ 29 Quality amounts % of the sum of Quality amounts ((D)+(E)) As in its (D) table No infanticide Child tea element No infanticides acid esters and containing for (E) No infanticide Child tea element No infanticide acid esters in non-aggregate Child theine Class, (3) 0.01 ~ 49 Quality amounts % of non-aggregates Child theine Class Zhong No gallate-based Zhi Body ratios As.本發明之目的在於改善純化綠茶萃取物之苦味及餘味。本發明之純化綠茶萃取物之特徵在於:(1)(A)楊梅黃酮、(B)檞皮素及(C)山奈酚的含有質量之和與(D)表沒食子兒茶素沒食子酸酯及(E)沒食子兒茶素沒食子酸酯的含有質量之和之比為((A)+(B)+(C))/((D)+(E))=0.0000001~0.010,(2)非聚合體兒茶素類中之(D)表沒食子兒茶素沒食子酸酯及(E)沒食子兒茶素沒食子酸酯的含有質量之和((D)+(E))為0.01~29質量%,(3)非聚合體兒茶素類中之沒食子酸酯體比率為0.01~49質量%。
