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Bausch & Lomb Boston Simplus Cleanser & Conditioner 120ml

Bausch & Lomb Boston Simplus Cleanser & Conditioner 120ml

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  • ✔️ Cleans, disinfects, and conditions RGP lenses in one step
  • ✔️ Removes protein and lipid deposits with daily use
  • ✔️ Contains PHMB and chlorhexidine for effective disinfection
  • ✔️ Suitable for all rigid gas permeable and hard contact lenses
  • ✔️ Single-bottle system simplifies daily lens care routine

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Is Boston Simplus Contact Lens Solution Right for You?

 

If you wear rigid gas permeable (RGP) or hard contact lenses, keeping them clean and comfortable is non-negotiable. Boston Simplus contact lens solution from Bausch & Lomb is a multi-action, single-bottle system designed to clean, disinfect, condition, and remove protein deposits from your lenses — all in one straightforward step. At just £8.15 for a 120ml bottle, it offers genuine everyday value for RGP lens wearers. You can browse the full range of products in our eye care collection if you need additional lens accessories or eye health products.

RGP lenses are known for their durability and optical clarity, but they do accumulate lipid and protein deposits over time. Left untreated, these deposits can cause discomfort, reduced vision quality, and even corneal complications. Using a dedicated solution like this one every day helps maintain lens hygiene and extends the life of your lenses.

 

How Does Boston Simplus Cleanser Work on RGP Lenses?

 

The formula works through a combination of surfactant cleaning agents and antimicrobial preservatives. Here is what happens during each cleaning cycle:

  • Surfactant action: Loosens and lifts lipid, protein, and debris deposits from the lens surface during the rub step.
  • Disinfection: Polyhexamethylene biguanide (PHMB) at 0.0005% and chlorhexidine gluconate at 0.003% work together to eliminate bacteria and micro-organisms on the lens.
  • Conditioning: The solution coats the lens with a wetting agent layer, improving comfort when you insert the lens the following morning.
  • Protein removal: Enzymatic-like surfactant activity helps break down protein build-up that accumulates with daily wear.

Because all four functions are combined in a single solution, you do not need to use a separate cleaner and conditioner — which simplifies your routine considerably.

 

Who Should Use Boston Simplus Cleanser and Conditioner?

 

This solution is specifically formulated for people who wear rigid gas permeable contact lenses. It is not suitable for soft or silicone hydrogel lenses. You may find it particularly useful if:

  • You wear RGP or hard contact lenses daily or on an extended basis.
  • You have previously experienced protein or lipid deposit build-up on your lenses.
  • You want to simplify your lens care routine to a single-bottle system.
  • Your optician has recommended a multi-action RGP solution for your lens type.

Always follow the advice of your optician regarding which solution is appropriate for your specific lens material and prescription.

 

How Does Boston Simplus Compare to Boston Advance Solution?

 

Feature Boston Simplus Boston Advance (Two-Bottle System)
Number of bottles required One Two (cleaner + conditioner)
Steps in routine Single step Two separate steps
Protein removal Yes (built-in) Yes (via separate cleaner)
Suitable for RGP lenses Yes Yes
Suitable for soft lenses No No

 

How Should You Store Boston Simplus and Is It Clinically Suitable for You?

 

Store your bottle below 25°C, away from direct sunlight, and keep it out of reach of children. Do not use the solution after the expiry date printed on the bottle. Once opened, use within the timeframe stated on the packaging — typically 90 days. Boston Simplus contact lens solution should not be used if you have a known allergy to PHMB, chlorhexidine, or any other listed ingredient. If you experience persistent eye redness, pain, or unusual discharge after using this product, remove your lenses immediately and seek advice from your optician or GP.

This product is a medical device solution. Speak to your optician or pharmacist before using if you have an underlying eye condition or are using any eye drops or other ocular medicines.

Bausch & Lomb Boston Simplus Cleanser & Conditioner 120ml specifications
Treatment category Contact lens care / RGP lens solution
Mechanism of action Surfactant cleaning, antimicrobial disinfection, conditioning, and protein removal
Effective for Cleaning, disinfecting, and conditioning rigid gas permeable contact lenses
Suitable for Adults wearing RGP or hard contact lenses
Active ingredients Polyhexamethylene biguanide (PHMB) 0.0005%, Chlorhexidine gluconate 0.003%
Pack size 120ml
UK classification General Sale / Medical Device
Preparation Topical solution
Route of administration Topical (applied to contact lens before insertion)

Specifications of Bausch & Lomb Boston Simplus Cleanser & Conditioner 120ml

 

What Is Boston Simplus Cleanser and Conditioner and What Is It Used For?

 

Bausch & Lomb Boston Simplus Cleanser & Conditioner is a multi-purpose contact lens solution designed exclusively for rigid gas permeable (RGP) and hard contact lenses. It combines four functions — cleaning, disinfecting, protein removal, and conditioning — into a single bottle, making it one of the most convenient options available for RGP lens wearers. The solution is used as part of a daily lens care routine: you apply it to your lenses each evening after removal, rub and rinse, then store the lenses overnight in fresh solution ready for morning insertion.

RGP lenses are more durable than soft lenses but require consistent, thorough cleaning to prevent deposit build-up and maintain optical clarity. Poor lens hygiene is associated with an increased risk of microbial keratitis and other ocular infections, so using an appropriate solution every day is clinically important. If you are also managing other aspects of your eye health, you may find it helpful to explore our wider eye care range for complementary products.

 

What Do You Need to Know Before Using Boston Simplus Cleanser?

 

Before using this solution, read the following contraindications and warnings carefully:

  • Do not use with soft, silicone hydrogel, or disposable contact lenses — this solution is for RGP and hard lenses only.
  • Do not use if you are allergic to polyhexamethylene biguanide (PHMB), chlorhexidine gluconate, or any other ingredient listed on the label.
  • Do not instil the solution directly into your eyes — it is for lens soaking and cleaning only.
  • Stop use immediately and consult your optician or GP if you experience eye pain, redness, unusual discharge, or sudden changes in vision.
  • Do not use after the expiry date or beyond 90 days of opening.
  • Keep out of reach of children.

Regarding known interactions with other products:

  • Do not mix Boston Simplus with other contact lens solutions in the same lens case.
  • If you use medicated eye drops, insert them before putting in your lenses and allow at least 15 minutes before lens insertion.
  • Some topical ocular medications may affect lens compatibility — always check with your optician or pharmacist.

 

How Should You Use Boston Simplus Cleanser and Conditioner?

 

Follow these steps each time you clean your lenses. Always wash and dry your hands thoroughly before handling your lenses or the solution bottle.

  1. Remove your RGP lens from your eye and place it in the palm of your hand.
  2. Apply 2–3 drops of Boston Simplus to each side of the lens.
  3. Rub the lens gently with your fingertip for approximately 20 seconds on each side.
  4. Rinse the lens thoroughly with fresh Boston Simplus solution.
  5. Place the lens in a clean lens case and fill with fresh Boston Simplus solution.
  6. Leave to soak for a minimum of 4 hours, or overnight for best results.
  7. Before insertion the next morning, rinse the lens with fresh solution if desired.
Indication User Group Amount per Lens Frequency
Daily cleaning and conditioning Adults (RGP lens wearers) 2–3 drops per side Every evening after lens removal
Overnight storage Adults (RGP lens wearers) Enough to submerge lens fully Nightly

 

What Are the Possible Side Effects of Boston Simplus Solution?

 

Like all contact lens solutions, Boston Simplus may cause side effects in some users, particularly those with sensitive eyes or a history of ocular allergies. Most reactions are mild and resolve on their own, but you should always monitor your eyes carefully after starting a new lens care product.

Common side effects:

  • Mild, transient eye irritation or stinging upon lens insertion
  • Temporary blurred vision immediately after inserting lenses
  • Mild lens awareness or slight discomfort during initial use

Less common side effects:

  • Eye redness (conjunctival hyperaemia)
  • Increased tearing or watery eyes
  • Sensitivity to light (photophobia)
  • Allergic reaction to preservative ingredients (PHMB or chlorhexidine)

If you experience any serious symptoms — including severe eye pain, sudden vision loss, or signs of corneal infection — remove your lenses immediately and seek urgent medical attention. The NHS advises that any sudden change in vision or eye pain warrants prompt assessment by a healthcare professional.

 

How Should You Store Boston Simplus Cleanser and Conditioner?

 

  • Store below 25°C in a cool, dry place away from direct sunlight.
  • Do not freeze the solution.
  • Keep the bottle tightly closed when not in use.
  • Do not use after the expiry date printed on the bottle or carton.
  • Discard any remaining solution 90 days after first opening.
  • Keep out of reach and sight of children.
  • Do not transfer the solution to another container.

Proper storage helps maintain the effectiveness of the disinfecting agents and prevents contamination. Always replace your lens case monthly and never top up old solution — empty, rinse, and refill with fresh Boston Simplus each time. For other health essentials you may need alongside your eye care routine, take a look at our vitamins and supplements range.

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy Boston Simplus contact lens solution online in the UK?

You can buy Boston Simplus contact lens solution directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for just £8.15 per 120ml bottle. No prescription is required, and it is available for convenient home delivery. Browse our full eye care collection for related products.

How does Boston Simplus contact lens solution work in the eye care routine?

Boston Simplus uses a combination of surfactant cleaning agents and antimicrobial preservatives — PHMB and chlorhexidine gluconate — to clean, disinfect, condition, and remove protein deposits from rigid gas permeable lenses in a single step. The surfactants lift debris and lipid deposits during the rub phase, while the preservatives eliminate bacteria during the soak phase. This multi-action approach means you only need one bottle rather than separate cleaner and conditioner products.

How do I use Boston Simplus step by step?

After removing your RGP lens, apply 2–3 drops of Boston Simplus to each side and rub gently for 20 seconds. Rinse the lens with fresh solution, then place it in a clean lens case filled with fresh Boston Simplus and leave to soak for at least 4 hours or overnight. Always wash and dry your hands before handling your lenses.

Is Boston Simplus suitable for soft contact lenses?

No — Boston Simplus is formulated exclusively for rigid gas permeable (RGP) and hard contact lenses and must never be used with soft, silicone hydrogel, or disposable lenses. Using it with soft lenses could cause serious eye irritation or damage to the lens material. Always check with your optician if you are unsure which solution is appropriate for your lens type.

What are the side effects of Boston Simplus solution?

Most users tolerate Boston Simplus well, but some may experience mild, transient eye irritation or temporary blurred vision after lens insertion. Less commonly, users may notice eye redness, increased tearing, or sensitivity to light, particularly if they have a sensitivity to the preservatives PHMB or chlorhexidine. If you experience severe eye pain, persistent redness, or any sudden change in vision, remove your lenses immediately and seek advice from your optician or GP.

Can I use Boston Simplus if I have sensitive eyes?

Boston Simplus contains preservatives including PHMB and chlorhexidine gluconate, which may cause sensitivity reactions in some individuals with particularly reactive eyes. If you have a history of preservative sensitivity or ocular allergies, speak to your optician before switching to or starting this solution. They may recommend a preservative-free alternative or a different lens care system better suited to your needs.

How long does a 120ml bottle of Boston Simplus last?

A 120ml bottle typically lasts between one and two months for a single lens wearer, depending on how much solution you use per cleaning cycle. You should discard any remaining solution 90 days after first opening the bottle, regardless of how much is left. Always check the expiry date on the bottle before use.

What is the difference between Boston Simplus and Boston Advance?

Boston Simplus is a single-bottle, all-in-one solution that combines cleaning and conditioning in one step, making it ideal for those who prefer a simpler routine. Boston Advance is a two-bottle system where you use a separate cleaner first and then a separate conditioner for soaking — some wearers find this provides a more thorough clean for heavily depositing lenses. Your optician can advise which system is better suited to your lens material and wearing pattern.

Who is eligible to use Boston Simplus cleanser and conditioner?

Boston Simplus is suitable for adults who wear rigid gas permeable or hard contact lenses as part of their daily vision correction routine. It is not intended for children unless under the direct supervision and recommendation of an optician. People with known allergies to PHMB or chlorhexidine should not use this product.

What happens if I accidentally get Boston Simplus in my eye?

Boston Simplus is not intended for direct instillation into the eye — it is a lens soaking and cleaning solution only. If it accidentally enters your eye, rinse immediately and thoroughly with clean water. If irritation, redness, or pain persists after rinsing, seek advice from your pharmacist, optician, or GP promptly.

How often should I replace my lens case when using Boston Simplus?

You should replace your lens case at least once a month to reduce the risk of microbial contamination and biofilm formation. After each use, empty the case completely, rinse it with fresh Boston Simplus solution (not tap water), and leave it to air dry face-down on a clean tissue. Never top up old solution — always use fresh solution each time.

Can I use Boston Simplus with eye drops or other ocular medications?

If you use medicated eye drops, instil them before inserting your lenses and wait at least 15 minutes before putting your lenses in. Some topical ocular medications may affect lens compatibility or interact with the preservatives in Boston Simplus. Always inform your optician and pharmacist about any eye drops or ocular medicines you are using.

What are the alternatives to Boston Simplus for RGP lenses?

Alternatives for RGP lens care include the Boston Advance two-bottle system (also by Bausch & Lomb), Menicon Menicare Plus, and Sauflon Regard — all designed specifically for rigid gas permeable lenses. Your optician is best placed to recommend the most suitable option based on your lens material, wearing schedule, and any history of deposit build-up. You can also explore our eye care collection for available options.

How long can I continue using Boston Simplus?

Boston Simplus can be used as part of your ongoing daily lens care routine for as long as you wear RGP contact lenses, provided you continue to tolerate it well and your optician is happy with your lens and eye health at regular check-ups. Most opticians recommend an annual or biannual contact lens review to assess lens fit, eye health, and the suitability of your current lens care products. If you develop any new eye symptoms, seek advice promptly rather than continuing use.

What does the latest research say about RGP lens solutions like Boston Simplus?

Clinical evidence consistently supports the importance of daily cleaning and disinfection of RGP lenses to reduce the risk of microbial keratitis and other contact lens-related complications. Studies published in peer-reviewed optometry journals confirm that multi-action solutions combining surfactant cleaning with antimicrobial disinfection are effective at reducing bacterial load on lens surfaces. The NHS advises all contact lens wearers to follow their optician's recommended care routine and attend regular check-ups to maintain eye health.

How Should You Use Boston Simplus Cleanser and Conditioner?

Always wash your hands thoroughly with soap and dry them with a lint-free towel before handling your contact lenses or the solution. Handling lenses with unclean hands is one of the most common causes of lens contamination and eye infection.

What Is the Correct Dose of Boston Simplus to Use?

There is no fixed "dose" in the traditional sense, but the amount of solution used per cleaning cycle matters for effectiveness. Using too little solution during the rub step may leave deposits on the lens surface, reducing comfort and optical clarity.

When Is the Best Time to Use Boston Simplus Solution?

The best time to use Boston Simplus is immediately after removing your lenses each evening. Cleaning your lenses promptly after removal prevents deposits from drying and hardening on the lens surface, which makes them significantly harder to remove. Soaking overnight gives the disinfecting agents sufficient contact time to work effectively, so your lenses are ready and safe to insert the following morning.

Never skip the cleaning step and simply top up the solution in your lens case — always empty the case, clean the lens, and refill with fresh solution each time.

How Long Can You Use Boston Simplus For?

Boston Simplus can be used as part of your daily lens care routine for as long as you wear RGP contact lenses, provided you continue to tolerate it well. Once opened, the bottle should be used within 90 days and discarded after that point regardless of how much solution remains. Your optician will review your lens care routine at regular check-ups — typically annually — and can advise if a change of solution is needed based on your eye health and lens condition.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

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What Are the Most Common Side Effects of Boston Simplus Solution?

Most people who use Boston Simplus as directed experience no significant side effects. However, as with any contact lens solution containing preservatives, some users — particularly those new to the product — may notice mild reactions during the first few days of use.

  • Mild, transient stinging or irritation upon lens insertion
  • Temporary blurred vision immediately after inserting lenses
  • Slight lens awareness or mild discomfort during initial use

These effects are usually short-lived and tend to resolve within a few minutes of lens insertion. If they persist beyond the first week of use, consult your optician.

What Are the Less Common Side Effects of Boston Simplus?

A smaller number of users may experience reactions that are less common but worth being aware of, particularly if you have a history of eye sensitivity or preservative intolerance.

  • Eye redness (conjunctival hyperaemia)
  • Increased tearing or watery eyes
  • Sensitivity to light (photophobia)
  • Itching or a foreign body sensation in the eye
  • Allergic conjunctivitis related to PHMB or chlorhexidine sensitivity

If you notice any of these symptoms, remove your lenses immediately and allow your eyes to rest. If symptoms do not improve within a few hours, seek advice from your optician or pharmacist.

What Are the Serious Side Effects of Boston Simplus to Watch For?

Serious adverse reactions to Boston Simplus are rare when the product is used correctly. However, you should be aware of the signs of a more significant problem. Microbial keratitis — a serious corneal infection — is a risk associated with poor contact lens hygiene generally, not specifically with Boston Simplus, but any deviation from the recommended cleaning routine increases this risk.

Seek urgent medical attention if you experience any of the following:

  • Severe eye pain that does not resolve after lens removal
  • Sudden or significant loss of vision
  • Unusual or purulent (pus-like) discharge from the eye
  • Marked swelling of the eyelids
  • Corneal cloudiness or a white spot on the eye

What Should You Do If You Experience Side Effects From Boston Simplus?

If you experience mild irritation, remove your lenses and rest your eyes. Rinse your eyes with sterile saline if available. Do not reinsert your lenses until the irritation has fully resolved. If you suspect an allergic reaction to the solution, discontinue use and speak to your optician about switching to an alternative RGP lens care system. Keep a note of when symptoms started and what they felt like, as this information will help your optician or GP assess the cause.

Can Boston Simplus Interact With Other Eye Medicines?

Boston Simplus is not known to interact with systemic medications. However, if you use topical ocular medications such as antibiotic eye drops, anti-inflammatory drops, or glaucoma treatments, you should instil these before inserting your lenses and wait at least 15 minutes. Some preservatives found in eye drops may accumulate in RGP lens material over time, potentially causing ocular irritation. Always inform your optician and pharmacist of all eye drops or ocular medicines you are using so they can advise on the safest lens care routine for you.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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