Yes, roots can be retouched, keeping in mind to stay away from the adhesive tabs. It is recommended that roots be done 24 to 48 hours prior to application. If roots need to be done between extension services and there is enough new growth to keep the color off of the tabs, we suggest doing a partial retouch along with the hair line.
Sew-In Weft Extensions
It is recommended to do color or chemical services in between removal and reapplication. If you choose to do color or chemical services in between extension services, you may do a partial t-zone retouch, avoiding the secondary (extension) hair.