In order to regrow your edges you need to use a powerful hair growth stimulant like valproic acid in combination with using the Dermaroller.
I use the Growth Factors serum, which contains Valproic acid, Minoxidil and Sandalore — all of which are powerful hair growth stimulants.
Follow this guide, which shows you how to use the Dermaroller for maximum hair regrowth:
https://hairfollicleneogenesis.com/how-to-use-a-dermaroller-for-maximum-hair-growth/
And use the Growth Factors serum as directed in the guide above. The Growth Factors serum is found here:
https://hairfollicleneogenesis.com/the-hair-follicle-neogenesis-growth-factors-serum/
If you have any questions or need any support, please let me know and I’ll be happy to help.