Users generally recommend leaving the shampoo on your scalp for at least 10 to 30 minutes before rinsing it off. Some users even leave it on for an hour for better results. This allows the ingredients to work effectively on the scalp.

「Apply it to a dry scalp. I personally apply it all over my scalp, put on a shower cap, and wait at least 30 minutes before washing it off. If I have more time, I sometimes leave it on for an hour.」Review+

「For maximum effectiveness, try this morning routine: Apply the water-based shampoo to your dry scalp before showering. Then, hop in the shower and let it sit while you wash your body, brush your teeth, and cleanse your face. Finally, wet your hair and work up a lather before rinsing.」Review+