Dry shampoo is often based on corn starch or rice starch. Choose the right shampoo for your hair: certain kinds work better for those with dry hair, oily skin, or sensitive noses. If you're tight on time and a shower is just not in the cards, you can just spray one on and run out the door with refreshed-looking locks. It is in powder form and is typically administered from an aerosol can. ANSWER: The short answer, no. 1. Dry shampoo is an oil-absorbing powder, usually starch or talc-based, that absorbs excess dirt and grease in your hair without the use of water (you should definitely not use water with dry shampoos). Our scalps need the benefit of shampoo cleansing to rid our heads of excess scalp oil. Dry shampoo is a type of shampoo which reduces hair greasiness without the need for water. Dry shampoo is the perfect hair pick-me-up to take your ‘do from day to night. "Shampooing too often can dry hair out," says hairstylist Courtney Foster. 9. Dry shampoo can be a total lifesaver. Does Dry Shampoo Actually Clean Your Hair? No matter the form, they serve the same purpose: To lightly cleanse the hair by absorbing oil. Dry shampoo is a substance that comes as a powder or spray formula that works to cleanse the hair without the use of water. If you have dry hair, less is more when it comes to washing. Dry shampoo is a positive alternative to liquid shampoo if you're on-the-go or want to wash your hair every other day. Dry shampoo is a quick fix when you want to ride out your blowout for one day, but if you have fine hair the product can leave too much residue behind. Dry shampoos should not be a replacement for actual hair cleansing and clarifying with shampoo. Top 5 Dry Shampoo Questions Answered.