Wondering what is co washing hair? Well, let us explain: co washing has fast become popular with the curly and afro hair community, and it is the practice of ‘washing’ one’s hair with a cleansing conditioner or a conditioner (hence the apt name!). But is it worth skipping the shampoo step in your hair routine? Is co washing hair effective or detrimental? We go through the science and provide you with the truth about co washing.