Which of the following is an example of a 2-in-1 system containing a cleaner and disinfectant?

• A. Boston Simplus, Unique pH, Clean
• B. Original Boston Formula Conditioning Solution
• C. Boston Simplus
• D. Clean

Answer: (A)

Two-in-one systems are designed to both clean deposits from the lens surface and disinfect the lens in one step, using a single bottle. Boston Simplus fits this idea because it’s marketed as a cleaner and disinfectant in one formulation, often highlighted with a unique pH that supports comfortable wear while effectively removing debris and killing microbes. This combination makes it a true 2-in-1 system for GP lenses.

In contrast, an Original Boston Formula Conditioning Solution is intended mainly for conditioning and maintaining moisture on the lens rather than providing disinfection. A product labeled simply as "Clean" does not indicate disinfecting capability, and referring to Boston Simplus without the accompanying 2-in-1 context doesn’t clearly show the disinfectant aspect. Therefore, the option that clearly demonstrates a cleaner and disinfectant in one system is Boston Simplus.