Dry Shampoo or Waterless Shampoo
Q: Hi, I'm going on a backpacking trip around the country in July and most likely wont be able to shower often. I was wondering if there is a product that is made to keep your hair from getting greasy and oily.A: What you want to look for is a product called "dry shampoo" or "waterless shampoo" or "no-rinse shampoo".
Otherwise, you can always visit your local drugstore and ask your pharmacist about waterless shampoos. These products were developed primarily as a way to allow those persons too ill to get into a shower to keep their hair clean and oil-free. However, they will work equally well for persons who find themselves away from the convenience of showering facilities.
The two most common varieties of this product include a liquid that contains alcohol and surfactants that remove the oil from the hair and the alcohol evaporates quickly. The other version is an aerosol-propelled powder which absorbs oils and is brushed from the hair.
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See also:
Hair care
Hair care using household products
How to use talcum powder to make hair look less greasy