Can I use just a cleansing conditioner instead of shampoo or conditioner?
yea since a cleansing conditioner is like a co-wash. Just remember to deep condition.
Agreed with the first answer! I use a cowash and I make sure to deep condition the ends in teh shower EVERY TIME I cleanse - and I'll do a full, leave-it-on-forever deep condition a couple of times a month.
You can, however, I would recommend clarifying your hair every 2 to 3 months. Considering the nature of co-washes, they are light cleansers and moisture replenishes. It does not remove all build-up, and will have deposits of it's own.