Is test1 essence good for absorption?
Test purpose: spent a lot of silver essence, how much skin can absorb
Easy test method: cotton pad test molecular penetration.
Tool: cotton pad
Operation: The essence is dripped on a stack of paper or cotton pad to observe the penetration force, and the easier it is to penetrate downwards, indicating that the molecules are small and the penetrating power is strong and easily absorbed by the skin. If it only spreads on the surface, it means that the penetration is poor and it is not well absorbed.
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