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Why is Yangshengtang birch juice mask allergic?
1, personal skin sensitivity: Some people have sensitive skin and are easily stimulated. Even if the ingredients in the mask are natural, it will cause allergic reactions.

2. Damaged skin barrier: When the skin barrier is damaged, the skin's resistance to external stimuli is reduced, which is easy to cause allergic reactions.

3. Component intolerance: Although birch juice is a natural component, it is intolerant to some components in birch juice, leading to allergic reaction.