(TrendHunter.com) Dr. Sheffield's is now packaging its charcoal toothpaste products in fully recyclable aluminum tubes. The natural, fluoride-free toothpastes help to reduce dependence on plastic and as Jeffrey... (TrendHunter.com) Dr. Sheffield's is now packaging its charcoal toothpaste products in fully recyclable aluminum tubes. The natural, fluoride-free toothpastes help to reduce dependence on plastic and as Jeffrey...