5. For Best Results You Should Stick to One Product Line.
误区五：为了达到最佳效果，你应坚持使用同一系列的产品。

Another fallacy promoted by sales reps. Certainly, you may love how all the products work together but using products from different lines won't kill you. Every cosmetics line has products you should avoid because they contain irritating ingredients, inadequate amounts of sunscreen, or moisturisers that over-saturate the skin. Experiment and find the products that are right for you.

又是一个销售代表宣扬的谬论。当然了，你可能喜欢整套产品一起使用的效果，但使用不同系列的产品不会害死你。每个化妆品系列都拥有你该避免使用的产品，因为它们含有刺激性成分、含量不足的防晒成分或是过度滋润肌肤的润肤剂。要在适用后找出适合自己的产品。

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