A method for anti-oxidation, inhibiting the activity of matrix metalloproteinase (MMP), inhibiting the expression of matrix metalloproteinase, and/or promoting the expression of collagen in a mammal is provided, and the method comprises administrating an effective amount of an Ixora parviflora leaf extract to the mammal.

A method for anti-oxidation, inhibiting the activity of matrix metalloproteinase (MMP), inhibiting the expression of matrix metalloproteinase, and/or promoting the expression of collagen in a mammal is provided, and the method comprises administrating an effective amount of an Ixora parviflora leaf extract to the mammal.

AnIxora parviflora leaf extract of which the absorption spectroscopy includes peaks within the following wave ranges: from 210 to 250 nm, from 260 to 290 nm, and from 300 to 350 nm. The extract is useful for anti-oxidation, inhibiting the activity of matrix metalloproteinase (MMP), inhibiting the expression of matrix metalloproteinase, and/or promoting the expression of collagen.

1.對於基質金屬蛋白酶表現異常增加，可達到抑制功效。
2.添加於保養品中，可藉由抑制膠原蛋白酶活性，降低暴露於紫外線後皮膚中活化的膠原蛋白酶活性。
3.促進膠原蛋白生成的效果，可運用於促進傷口癒合，使皮膚豐盈具光澤。