P&G Beauty has unveiled its newest packaging move in the hair care sector that it says is designed to change the way consumers buy, use and dispose of their shampoo bottles.   As of 2021, Head & Shoulders, Pantene, Herbal Essences and Aussie brands will launch a refill system for shampoo with a new reusable 100% aluminum bottle and recyclable refill pouch, made using 60% less plastic (per mL versus standard brand bottle).  The announcement was made during a live panel of sustainabili...