Clear Care cleans and disinfects contact lenses using 3% hydrogen peroxide, a powerful oxidizer that kills bacteria and other microorganisms on the lens surface. What makes it different from multipurpose solutions is that the active disinfecting ingredient breaks down completely into water and oxygen, leaving no preservatives on your lenses when you put them back in your eyes.
The Hydrogen Peroxide and Platinum Disc System
The system has two components working together: a bottle of 3% hydrogen peroxide solution and a special lens case with a built-in platinum disc at the bottom of the lens basket. You place your lenses in the basket, fill the case to the line, and screw it shut. The hydrogen peroxide immediately goes to work killing microorganisms on the lens surface at full strength.
At the same time, the platinum disc begins catalyzing a chemical reaction that slowly converts the hydrogen peroxide into plain water and oxygen gas. That’s the bubbling you see. The platinum coating is precisely engineered to control the speed of this neutralization process so the peroxide stays strong long enough to disinfect but breaks down completely before you wear the lenses again. The disc is designed to last about 100 uses before needing replacement.
The case design is intentional in another way: the lens basket sits vertically above the platinum disc, so the oxygen bubbles travel upward across both lens surfaces as they rise. This physical action helps scrub away protein deposits, lipids, and debris that accumulate during a day of wear.
What It Kills
Hydrogen peroxide at 3% concentration is effective against a broad range of pathogens, including bacteria that form biofilms on lens surfaces. Biofilms are sticky colonies of microorganisms that can resist the chemical agents in standard multipurpose solutions, making peroxide systems particularly useful for thorough disinfection.
The solution also targets Acanthamoeba, a waterborne parasite that can cause severe eye infections in contact lens wearers. In lab testing, 3% hydrogen peroxide solutions achieved 99.9% kill rates against the active (trophozoite) form of Acanthamoeba within one hour. The dormant cyst form is harder to eliminate, and one-step systems like Clear Care are less effective against cysts because the peroxide neutralizes relatively quickly. Two-step peroxide systems, where you manually add a neutralizing tablet after a longer soak, perform better against cysts because the peroxide stays at full strength for hours.
How It Cleans Beyond Disinfection
Clear Care contains a surfactant called Pluronic 17R4 that reduces surface tension on the lens. In practical terms, this ingredient loosens the grip of proteins, lipids, and other organic buildup so they wash away more easily during the bubbling process. The combination of chemical cleaning from the surfactant and mechanical cleaning from the rising oxygen bubbles is what gives peroxide systems their reputation for making lenses feel noticeably cleaner than a multipurpose solution rinse.
Why It’s Preservative-Free After Neutralization
Multipurpose solutions contain preservatives that remain on the lens when you insert it. For most people this is fine, but some wearers develop sensitivity over time, leading to redness, irritation, or corneal staining. Because Clear Care’s hydrogen peroxide completely converts to water and oxygen during neutralization, there’s nothing left on the lens to irritate your eyes. The final solution sitting in your case after six hours is essentially saline with trace amounts of residual peroxide (between 5 and 60 parts per million), well within a comfortable range for the eye.
The Six-Hour Rule
You must leave your lenses in the case for at least six hours. This is the minimum time required for the platinum disc to neutralize the hydrogen peroxide to safe levels. Putting lenses in your eyes before that six hours is up means exposing your cornea to concentrated peroxide, which causes immediate, intense stinging and can damage the eye’s surface. Most people simply use the system overnight, dropping lenses in before bed and taking them out in the morning.
One critical safety point: never use the Clear Care solution as a rinse or put it directly in your eyes. It’s not saline. The 3% hydrogen peroxide concentration requires the neutralization process inside the special case before it’s safe for contact with your eyes.
Clear Care vs. Clear Care Plus
Clear Care Plus uses the same hydrogen peroxide disinfection system but adds a moisture component called HydraGlyde Moisture Matrix. This is a polymer that coats the lens surface during the soaking process, designed to help the lens retain moisture throughout the day. It’s formulated specifically for silicone hydrogel soft lenses, which can sometimes feel dry despite being highly breathable. The disinfection process is identical between the two products. The difference is purely about lens comfort after insertion.
Which Lenses It Works With
Clear Care is compatible with soft contact lenses, including daily wear and extended wear varieties. It also works with rigid gas permeable (RGP) lenses and scleral lenses. For specialty lenses with coatings like Tangible Hydra-PEG, both Clear Care and Clear Care Plus are on approved compatibility lists, though you should follow the specific care instructions for your lens material.
The lens case should be replaced every three months, or immediately if you notice cracks, discoloration, or any visible damage. Since the platinum disc is built into the case, replacing the case also gives you a fresh catalyst for proper neutralization. A worn disc may not break down the peroxide effectively, which is both a safety and a hygiene concern.