To a Customer: Focus on benefits—freshness, efficacy, value, and cleanliness. Use the syringe/toothpaste metaphor.
To a Store Buyer: Focus on market differentiation and value proposition. "This packaging allows us to use premium, air-sensitive actives and guarantees your customers get a superior, consistent experience, which builds brand loyalty."
To a Designer/Engineer: Focus on the mechanism—the piston, the vacuum creation, the one-way valve, and the evacuation rate.
