The PH of laundry detergents is between 7 and 10. Most detergents have a PH closer to 9. This makes laundry detergents either neutral or basic in their solutions. If detergents were acidic, they would be more harmful to the fabric.
Not all detergents have the same PH levels because they have different chemical compositions. Manufacturers keep their exact formula a secret. However, the most common components of all detergents are surfactants. The surfactants help to wash away the particles of mud and have great water absorption capacity. They have good cleaning action and use brighteners to enhance their cleaning properties. Some detergents contain biodegradable substances.