You need to take a shower, brush your teeth, and eat breakfast in the morning, and you don't have time at all to wash and dry your hair. If you happen to have overslept, the situation is even worse. Using dry shampoo in the morning can save you at least half an hour of time, and is very efficient: see the article Use Dry Shampoo to Cut the Morning Routine.
Currently there are many dry shampoo brands on the market; most of them contain hair powder. They have been used by many people on busy mornings and other hasty occasions. It can be a routine habit for people to freshen up quickly.
Dry shampoo powder can cause problems. The powder may get all over your clothes and floor, and you would need to clean the sink, the comb, and many other places. Sometimes the counter would become entirely covered with powder. You already don’t have enough time to clean your hair; now you need the clean the restroom as well, after using the powder. In addition, you also need to wait 5 to 10 minutes for the powder to absorb the hair oil.
Fáciaño Dry Shampoo doesn't require you to wait for it to be absorbed, and it creates no residue for you to clean anywhere.