What packaging options are appropriate for topical solutions?

• A. Aerosol spray cans
• B. Glass/plastic bottles with applicator tips, plastic squeeze bottles, drop bottles
• C. Metal tins
• D. Glass ampoules

Answer: (B)

For topical solutions, packaging should allow precise, convenient, and sanitary application while protecting the product. Glass or plastic bottles with applicator tips, plastic squeeze bottles, and drop bottles fit these needs well because they let the user dispense a controlled amount directly onto the skin or required area and minimize exposure to air or contaminants when closed. They’re versatile for different viscosities and compatible with common solvents, and the applicator or dropper design helps reduce waste and improve dosing accuracy.

Aerosol spray cans are useful for delivering a fine mist, but they sacrifice dosing precision and require propellants, which isn’t ideal for many topical solutions that need a specific amount per use. Metal tins are typically used for semi-solid formulations like creams or ointments, not liquid solutions. Glass ampoules are single-use and require breaking the seal to use, which isn’t convenient for repeated topical application and can compromise sterility after opening.