Those who have given birth to children have stretch marks, so it is too late to use olive oil. When you are pregnant, you should take a bath with olive oil and massage while washing, so that your skin is elastic and it is not easy to have stretch marks. But after giving birth, you should use professional products to remove stretch marks. [It contains high collagen content, which can tighten skin elasticity] Before use, your pores should be opened to facilitate absorption, so that the effect is good.