Posted by Kemmie.com
If you’re on a budget, you an easily dye your hair extensions at home. As much as I would like to go to the salon, I cannot afford it.
Using box dye is a great alternative, it may not be a great as doing it at the salon but you can achieve fantastic results!
I recommend buying 2 boxes for hair that is 18 inches or longer, I ran out of hair dye for just one weft so had to get anoher box. =)
Hope this helps! It turned out amazing for me!!
You cannot dye or apply heat products to synthetic hair, it just wont work. Only dye hair extensions when it is 100% human hair.