Coloring hair has been one of the main issues for many wearers ----after exposure to sun,shampoos, chlorine in water etc, system hair [ like growing hair] can become faded from the sun [oxidation] The main thing is to keep coloring chemicals off your lace or it will permanently stain it..also, only allow no more than 3 or 4 minutes of `exposure` before rinsing it out..system hair really `grabs` color far faster than growing hair and you`ll end up with a very deep shade if you leave it on too long. If the color-difference is not too noticeable, using Back2natural color-restoring conditioner will help with the blend and also conditions the hair and is recommended by Toplace . You can Google it but here`s just one supplier: http://www.hairdirect.com/store/back2nat...4Qodkj9F_w
Here is a list of forum posts on this subject: http://www.forum.toplace.com/search.php?...order=desc