There’s no single “best” contact lens solution for everyone. The right choice depends on your lens type, how sensitive your eyes are, and how much effort you want to put into your nightly routine. That said, hydrogen peroxide systems consistently outperform multipurpose solutions in clinical comparisons for comfort, cleanliness, and eye health, making them the strongest default recommendation for most soft lens wearers.
Here’s what actually matters when choosing a solution, and where specific products stand out or fall short.
Two Main Types of Solution
Contact lens solutions fall into two categories: multipurpose solutions (MPS) and hydrogen peroxide systems. They work very differently, and those differences affect your comfort and eye health over time.
Multipurpose solutions are the all-in-one option. You rinse, clean, disinfect, and store your lenses in the same liquid. They use chemical preservatives to kill bacteria and other microorganisms. The convenience is real: you can rub your lenses, drop them in a case, and put them in the next morning. Brands like Opti-Free, Biotrue, and RevitaLens dominate this category.
Hydrogen peroxide systems like Clear Care use 3% hydrogen peroxide to disinfect lenses, then a built-in catalyst (usually a platinum disc in the case) converts the peroxide into plain saline over several hours. Because peroxide breaks down completely, no preservatives end up sitting on your lenses overnight. The trade-off is time: your lenses need to soak for at least six hours before they’re safe to wear. Put them in your eyes too early and the unneutralized peroxide will cause intense burning and irritation.
Clinical reviews comparing the two types have found that hydrogen peroxide systems tend to produce better comfort, better compliance with care routines, and fewer problems on the surface of the eye. The absence of preservatives is a significant advantage, especially for people who wear lenses all day or have any degree of sensitivity.
Why Preservatives Matter
The preservatives in multipurpose solutions are necessary to keep the liquid sterile in the bottle, but they can cause problems once they’re on your eye. Two preservatives are used in nearly every MPS on the market today: polyquaternium-1 (often called Polyquad) and polyhexamethylene biguanide (PHMB).
Both can cause corneal staining, which is microscopic damage to the surface of the eye that your optometrist can see with a special dye. PHMB tends to cause more frequent staining than Polyquad, particularly with silicone hydrogel lenses, which are the most common type of soft contact lens sold today. If you wear silicone hydrogels and notice redness or end-of-day discomfort, your PHMB-based solution could be contributing.
An older preservative called thimerosal was a notorious irritant. One retrospective review found that 33% of patients using a solution containing thimerosal plus chlorhexidine developed corneal staining, compared to just 5% to 8% of patients using thimerosal alone. Thimerosal has been phased out of most modern products, but if you’re using an older or off-brand solution, it’s worth checking the label.
Hydrogen peroxide systems sidestep these issues entirely. Once neutralized, the solution touching your eye is essentially saline with no active preservatives. For people with sensitive eyes, dry eye tendencies, or a history of redness with multipurpose solutions, peroxide systems are the clearest upgrade.
How Well Do They Actually Clean?
Disinfection is only part of the equation. Your lenses also accumulate protein deposits, lipids, and environmental debris throughout the day, and getting those off matters for both comfort and safety.
Despite what some bottles say, rubbing your lenses with solution before soaking them makes a measurable difference. A study testing “rub” versus “no-rub” methods found that simply soaking lenses without rubbing failed to remove stubborn deposits from 94% of lenses tested. When lenses were rubbed first, more than 80% of deposits were cleared from 63% of the lenses. The “no-rub” labels on many multipurpose solutions are technically approved by regulators, but the mechanical rubbing step dramatically improves cleaning regardless of which solution you use.
When it comes to killing dangerous organisms, hydrogen peroxide has a notable edge against Acanthamoeba, a rare but devastating parasite that can cause severe eye infections in contact lens wearers. Lab testing showed that 3% hydrogen peroxide achieved the highest kill rate at 87.4% of trophozoites (the active form of the parasite), while solutions using a Polyquad/PHMB combination were the least effective. No contact lens solution is great at killing the dormant cyst form of Acanthamoeba, which is why keeping water away from your lenses remains critical.
Comparing Popular Brands
If you’re choosing among multipurpose solutions specifically, the performance differences between major brands are smaller than you might expect. A clinical trial comparing three multipurpose solutions (including Opti-Free PureMoist) on silicone hydrogel lenses found no statistically significant difference in comfort scores. Comfort at insertion averaged about 8.8 out of 10 across all three products, and end-of-day comfort averaged around 7.4, up from 6.3 with participants’ previous solutions. When forced to choose a favorite, preferences split nearly evenly.
The real differences showed up in objective clinical signs rather than subjective comfort. One solution produced slightly less eyelid redness, while another caused slightly more lid roughness. These are subtle findings that most wearers wouldn’t notice day to day, but they suggest that switching between multipurpose brands is a reasonable strategy if one isn’t working for you. Your eyes may respond better to a different preservative formulation even if the products seem interchangeable on paper.
For hydrogen peroxide systems, Clear Care (and its Plus variant with added moisture agents) is the dominant option in the United States. It uses the standard 3% hydrogen peroxide concentration with a platinum neutralizing disc. The key differentiator isn’t really between peroxide brands but between the peroxide category and the multipurpose category.
Solutions for Rigid and Scleral Lenses
If you wear rigid gas permeable (RGP) or scleral lenses, you need solutions specifically formulated for hard lenses. Soft lens multipurpose solutions are not interchangeable.
For scleral and RGP lenses, the Scleral Lens Education Society recommends either a peroxide system like Clear Care or a GP-specific multipurpose solution such as Boston Simplus, Unique pH, or Tangible Clean. Before inserting scleral lenses, you should rinse them with preservative-free sterile saline or a dedicated scleral filling solution rather than tap water or multipurpose solution.
Rigid lenses are typically worn for a year or longer before replacement, so deposit buildup is a bigger concern than with disposable soft lenses. A specialized protein and deposit remover like Menicon Progent, used weekly or as directed, helps keep the lens surface clean over that longer lifespan. Rubbing during cleaning is especially important for rigid lenses, since soaking alone fails to remove the tougher deposits that accumulate over months of wear.
Choosing the Right Solution for You
If you have no eye sensitivity and want maximum convenience, a well-known multipurpose solution with Polyquad (like Opti-Free PureMoist) is a reasonable starting point. Rub your lenses for a few seconds before soaking, even if the label says you don’t have to.
If you experience any end-of-day discomfort, redness, or dryness, switching to a hydrogen peroxide system like Clear Care is the single most impactful change you can make. You’ll need to plan around the six-hour soak time, which works naturally if you clean your lenses before bed. The tradeoff in convenience is real but modest for most people.
If you wear silicone hydrogel lenses and currently use a PHMB-based multipurpose solution, consider switching to either a Polyquad-based MPS or a peroxide system. PHMB is associated with more corneal staining on silicone hydrogels specifically, and that interaction can contribute to irritation you might be attributing to dry eyes or long wear days.
Whatever solution you choose, never top off old solution in your case, never let tap water contact your lenses or case, and replace your lens case at least every three months. These habits matter more for preventing infection than any difference between brands.