Water absorption: Pour 2 ml of lotion slowly on the cotton, and observe the penetration rate of lotion and whether it leaks.
Water release: Next, squeeze out the lotion in the cotton pad, feel the difficulty of releasing the water, and observe the amount of water squeezed out.
Skin-friendly degree: Gently wipe the cotton pad with lotion on the face to feel the touch when the cotton pad is in contact with the skin.
Residue degree: Wipe the cotton pad with lotion on the back of the hand for 40 times to see if there is any small residue.
