Since I see so many posts on co-washing from confused newbies, I thought this post would be helpful. Also, this would be nice for some of the older members who dislike seeing the same posts asking the same questions about co washing over and over again.
Definition: Co-Washing is a technique that entails washing your hair solely with conditioner, this includes massaging the conditioner into your scalp like you would with shampoo as well as putting it on the length of your hair.
Benefits: Moisture, moisture, moisture! As well as softness and added mangeability for new growth
How-To: Everyone does it differently. There is really no 'right' way to co-wash. If you do it differently than someone else, you will not be damaging your hair. Personally, I let water run over the length of my hair and apply my conditioner in sections so I know that my hair is evenly coated. I then massage it into my scalp and finger comb it through, which helps with the detangling process later. Afterwards, I proceed to continue about my activities and rinse it out when I'm about to get out of the shower.
Products: Most of us perfer to use cheap conditioners because we co wash often. Favorites tend to be: Suave, White Rain, and VO5. I like those as well as Herbal Essences. Some people cannot use cheap shampoos so they use conditioners like Keracare Humecto, Neutrogena Triple Moisture Daily Deep Conditioner, and Nexxus Humectress
Growth: Because co washing can also clean the scalp, it is good for growth. Hair goes faster with a cleaner scalp. Some ladies report receiving enhanced growth from frequent co washes.
How Often: The average range is from daily to once a week. This obviously varies.
Feel free to add whatever else you want or ask any questions!