Boston Advance Cleaner heightens wearing comfort by removing lipids and proteins. Leaves your lenses clean, clear and ready for the disinfection step. Tri-Quaternary Cocoa-Based Phospholipid, Silica Gel, Alkyl Ether Sulfate - Effectively removes dirt and stubborn deposits from your lenses for clean, comfortable wear. Titanium Dioxide - Visibly tinted so you can see your cleaner has been thoroughly rinsed off. Because Your eyes are so important: Don't experiment with just any brand. Not all gas permeable contact lens cleaners are the same.