[KongchangAI]
Unverified82% confidenceDecision RuleTime unknown

维C类(如抗坏血酸乙基醚、乙基VC)美白水pH需在5.0-6.0之间才稳定有效,若产品呈明显黄褐色变说明已氧化失效,应避免购买或使用

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82%
Confidence
Long-term
Relevance
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