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.
Moisture, moisture, moisture! As well as softness and added manageability for new growth.
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 around the house and rinse it out say within 10-15mins.
Most of us prefer to use cheap conditioners because we co-wash often. Favorites tend to be: Suave, White Rain, VO5, and Herbal Essences. Some people cannot use cheap conditioners, so they use conditioners like Keracare Humecto, Neutrogena Triple Moisture Daily Deep Conditioner, and Nexxus Humectress.
Because co-washing can also clean the scalp, I believe it is good for growth. The hair is moisturized and soft, plus it breaks less which retains more length. Some ladies report receiving enhanced growth from frequent co-washes.
The average range is from daily to once a week/bi-weekly. This obviously varies.
Other Terms Used
The no-poo method means you don’t use Shampoo at all, where as the co-wash means that you do it in between washes. Lo-poo means occasionally using shampoo.
Does Conditioner really clean the hair?? Yes, read here for exaclty how it does so.
Sources: “What is a Co-Wash?” NautralNina.com