  In fact, when we buy any product, each of us will go to the product manual, but is there any simple way to self-test it, instead of relying on lengthy instructions? Today, Xiaobian exemplifies several cosmetic verification methods that are widely spread on the Internet.
Emulsion
1. Smell the taste. Good products are pure and do not require strong flavors to suppress product odors.
2. If it is a lotion, take a cup of water and pour the lotion into the water a little. If it floats on the water, prove that it contains petroleum ester (this is not recommended for cosmetics now), and the water becomes milky white. It is proved that the emulsifier is contained inside, and such a cosmetic is not good. If it is poured into the water, the emulsion sinks to the bottom and proves to be free of oleate. This is usable. Whetstone esters can damage the skin, causing dry and dehydrated skin, as it is the main cause of clogged pores. Over time, the pores will become larger and larger.
Foundation
1. Take an appropriate amount into the water and observe the reaction. Generally, three things will happen: stick to the side of the cup, float on the water and sink to the bottom of the cup.
These three cases illustrate the XXX. The good product is that it does not stick to the side of the cup, does not float, does not sink the bottom of the cup.
a. Sticking to the side of the cup is animal oil.
b. Floating on the water is mineral oil.
c. Heavy metal, lead, mercury, etc. are deposited at the bottom of the cup.
Lotion
1. Shake hard, watch the bubble after shaking:
a. Bubbles are rare, indicating less nutrition.
b. Bubbles are large but large, indicating that they contain salicylic acid. Salicylic acid cleansing effect is better, but the irritation is easy to be allergic.
c. The bubbles are very thin and quickly disappear, indicating alcohol. Do not use it for a long time, it is easy to damage the protective film of the skin.
d. The bubble is delicate and rich, and there is a thick layer, and it will last for a long time, that is good water.
2. Good quality and no alcohol. It has a cool feeling when it is not used well, and it smells like alcohol.
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