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Continue holding until the dose indicator shows the full dose has been delivered (usually 5-10 seconds)
Essentially, it zaps the skin with extremely cold liquid nitrogen
This gradual increase helps your body adjust to the higher dose without overwhelming your system
doi: 10.2147/IJN.S334965 214 LanXHanXLiQWangJ
Besides, unlike water-based ascorbic acid formulas, this serum has a higher pH of 5.5-6.0 , which decrease the risk of irritation
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