A recent global study by Yale University found that only one out of 10 women are happy with their hair on a daily basis, and Pantene wants to change that with its 14 Day Challenge, which invites consumers to go from #BadHairDay, to #GreatHairDay in just two weeks. To participate in the challenge, consumers have been asked to use Pantene Hair Advisor to learn the best regimen for them. Then, consumers should wash their hair using the recommended shampoo and conditioner as they normally would and ...