worst product managent and customer serviceget MZSKIN vitamin c serum, opened it and found it went bad and not fresh anymore (color become yellow, which showed on their website, too)contact with their email, no response. get response from Instagram later on, get confirmation for resending one after couple day communication.However, there is no email confirmation / tracking number, have to contact with them serveral time, giving them my address/name, email address,etc every time. still not solved. 2 week ago, they seen my massage and no reply. Now they not even read my message. :)
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