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Yau Yuet Ngor Anita posted an update 4 years, 4 months ago
@liza
Zaza老師
關於防腐篇: Last Chapter 請問為甚麽在化妝水加葡萄糖螯合劑?🤷建議成份沒有金屬離子呀? 因在末段未說完課已没有了 -
Shirley Chan became a registered member 4 years, 4 months ago
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Claire Wong became a registered member 4 years, 5 months ago
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Yau Yuet Ngor Anita posted an update 4 years, 5 months ago
@liza
請問老師:
問題1: 海藻酸鈉要有鈣離子才成膜, 是否要用鈣離子的純露或花水等?
問題2: 礦物泥帶負電荷, 不適宜與正離子成分同用, 那些材料是正離子成分, 品種繁多怎樣分辨? -
LEUNG LAN FONG CHRISTINE became a registered member 4 years, 5 months ago
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