Is it true you should change your shampoo every 6 months?
Regardless, some believe an occasional clarifying shampoo can get rid of " product buildup." Where do people get this idea? From some stylists and some product lines. I need more proof.
According to Cosmetic Mall's Beauty Tips , frequent use isn't the only reason to purchase a rotating cast of shampoos. The weather is also a culprit. "In dry winter air, a moisturizing shampoo may become necessary. In the summer, you may need a volume-building shampoo which will help keep your hair fuller."
But before you spend your paycheck on shampoos for all seasons, famed colorist Robert Craig has another theory: it's the water. After learning detergent manufacturers alter their product based upon each region's water hardness, he developed shampoos to do the same. He says, "if you are using a shampoo formulated for the water it is used with...there is never a need to change products." Maybe only a different kind of marketing hype, but it's an argument I'd buy.
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