IS IT OK TO USE THE HAIR ACTIVATING SERUM IN COMBINATION WITH HAIR DYE?
The HAIR ACTIVATING SERUM can be used irrespective of whether you dye your hair or not. It does not influence the quality of the color and does not contain any silicones or mineral oils that may impede the hair from absorbing the dye.
https://www.m2beaute.com/en/hair-care-faqs/faq-hair-activating-serum/is-it-ok-to-use-the-hair-activating-serum-in-combination-with-hair-dye