Cowash is using a conditioner to wash your hair.
Pre-poo is short for pre-shampoo. Pre-poo is a treatment done before the practice of shampooing, to prepare the delicate hair for the very stripping act of the shampoo.
What are some benefits of Pre-poo?
Hydrated scalp and hair will lead to less flaking and dandruff
Quicker hair growth
Lots of body and bounce
Primes hair for manipulation
Adds extra moisture
Softens hair therefore improving manageability and health