Literally, you may feel this way. But it depends on which one to choose, because DHC Olive cleansing oil doesn't feel oily after makeup removal. Because the selected olive oil ingredients are both lipophilic and hydrophilic, it is easy to wash with warm water while ensuring makeup removal, and there will be no oily and tight feeling after washing.
Simulation experiment:
In the chapter of thermal motion in senior high school physics, we talked about the crude method of determining molecular size-oil film method. The principle is to measure the diameter d of an oil drop, and calculate the volume of this oil drop according to the formula V = 1/6 π d 3.
Put this oil drop on a large water surface to spread its area as much as possible. When it spreads into a single oil film, the area s of the oil film is measured, and then the thickness d of the oil film is calculated by formula d = v/s. Because it is a single layer, the thickness of oil film is also the diameter of oil molecules.
The experiment of measuring molecular size by oil film method is not easy to do in school. For example, if an oil droplet with a diameter of 5mm spreads into a single oil film on the water surface, its area is about 1.2× 103 m, which is equivalent to the area of a square with a side length of 34.5m m. Such a large water surface cannot be achieved by ordinary schools. Therefore, students can't get the perceptual knowledge of measuring molecular size by oil film method.