There are two ways you might consider using the Anti-pollution Cleanser:
First, you may consider cleansing in the morning to protect against pollution penetrating the skin. This face wash leaves an undetectable film on your skin that decreases the penetration ability of damaging particulates. It also has a soft, fresh scent that is nice for the morning.
The second common use is the “take away the day” method. Cleanse at night to allow the cleanser to remove everything that builds up on your skin throughout the day.
There’s really no wrong way, so choose what works best for you or both.