Hi guys, Welcome to the Advanced Video Search Engine, and you are watching why the ordinary niacinamide 10% + zinc 1% is causing purging and breakouts 😅. That video is uploaded by cathy on skincare at 2020-09-16T09:00:10-07:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [geDRfV4dRB4]