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"Zero Residue" is a new kind of facial cleanser package that can make full use of the cream totally. Normally, the cream remains on the inwall of the package which is a big waste. Inspired by the structure of glue sticks, "Zero Residue" uses the theory of screw to convert spiral motion into linear motion. When we rotate the base, the internal tray goes up along the guide rails on the inwall squeezing out the facial cleanser. As a result, the cream remaining on the inwall will be squeezed out totally achieveing the goal of zero residue.
Xiuxiu Mu, Wei Liu