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Homemade Hair Spray
by Purdue University

Chop one lemon (or an orange for dry hair). Place in a pot with 2 cups water. Boil until half of the initial amount remains. Cool, strain, and place in a spray bottle. Store in the refrigerator. If it is too sticky, add more water. Add one ounce rubbing alcohol as a preservative and then the spray can be stored for up to two weeks unrefrigerated.