The citrus ritual for stronger skin barrier

Yuzu (citrus junos) is one of the most cold-resistant citrus trees and many believe that its hardy qualities are infused into the bathwater.

In Japan, the winter solstice, or ´toji, marks the beginning of true winter, when the cold gets progressively harsher. On this day, there is a long tradition of taking a yuzu bath (or yuzuyu)...

In vitro efficacy

  • Upregulation of stratum corneum genes
  • Cornified envelope lipid content after cold stress on keratinocytes
  • Cold and dehydration protection on keratinocytes

Cosmetic applications

Formulations to reinforce barrier function and protect the skin, especially for the prevention of irritation and dehydration due to cold and dry weather.


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