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Sally Hershberger is a hair style icon so when she comes out with a new product, we've gotta jump on it. Her new 24k Root Envy Ultimate Root Boost is perfect for all hair types and gives your hair that glamorous oomph. Watch Celebrity Hairstylist Kylee Heath explain why she uses a root boost on all her celebrity clients from Rashida Jones to Reese Witherspoon.
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