Faux locs are no more damaging than any other hairstyle that adds hair to your own hair with too much tension on the scalp. You cannot neglect your own hair and assume that no further maintenance is necessary. Your own hair must still be cleansed, moisturized, and conditioned.
You must also understand that there is more hair on your head than a normal application of added hair and length is a factor when getting them installed. The longer the locs the more tension will be applied to your scalp. If you already have damaged hair then adding that extra hair may not be a good idea and that goes double for thinning edges as that extra tension will only make your edges worse. This style is not a good idea if your hair is already damaged.
Aside from those precautions, this is an amazing and gorgeous style that is no more damaging than any other style if you practice proper hair care. Know what you are getting into and crave versatility. Enjoy your faux locs!
Follow Vic (pictured) here: