There are a number of reasons why your hair extensions might be matting.  If your hair extensions are matting through the lengths this could be because:

• The hair extensions are non remy and therefore the cuticle is damaged
• The hair extensions have become dry and frizzy causing it is tangle more easily
• The hair extensions have lost their natural oils and are therefore more difficult to manage
• The hair extensions have become damaged due to incorrect product and aftercare use.

If your hair extensions are matted at the root, the top causes of this are:

• Failing to separate the bonds on a regular basis as part of your daily routine
• Not securing the hair extensions at night when sleeping
• Leaving the hair extensions damp and not drying fully
• Incorrect hair extensions fitting