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The ingredients are blended together to make it appropriate for all skin types, including sensitive skin

Holding the syringe with the needle upwards, tap the syringe gently to move any air bubbles towards the needle
Sklan, D., M
doi: 10.1038/s41589-022-01033-3 26 MaTDuJZhangYWangYWangBZhangT

Treatment courses can be repeated every 2 months.
