When you receive your pretty bundles you should always wash them before installing & after you install your pretty bundles you should wash them once a week or at least twice a month.

We suggest 3 bundles, more depending on if your going longer than a 24".

Of course you can re-use them and yes My Pretty Bundles take very well with color "professional coloring".

Don't keep them in no longer than 2 months before your next install.