





Rohto C Cube Soft One Cool a
Long-lasting moisture & cool wearing sensation. Rubbing, rinsing, disinfection, and storage all in one bottle.
For these people and situations
Product Overview
Rohto C Cube Soft One Cool a is a disinfectant solution for soft contact lenses manufactured and sold by Rohto Pharmaceutical. It completes the 4 steps of rubbing, rinsing, disinfection, and storage with one bottle and is compatible with all soft contact lenses (Group I to Group IV). The active ingredient polyhexanide hydrochloride (PHMB) thoroughly disinfects the lenses, while poloxamer forms a moisturizing veil that gently wraps the lenses.
This product is a cool type characterized by a refreshing and crisp wearing sensation. It comes with a uniquely designed lens case (Soft One Original Lens Case) featuring one-touch open/close and an integrated lid for ease of use.
Product Features
4 steps completed with one bottle
All-in-one formulaRubbing, rinsing, disinfection, and storage all in one bottle. No need to prepare a separate storage solution, simplifying daily contact lens care.
Contains moisturizing veil ingredients
PoloxamerContains poloxamer that forms a moisturizing veil. It gently wraps the lenses to support a comfortable wearing experience.
Refreshing cool sensation
Cool typeRefreshing cool type with a crisp sensation. Suitable for those seeking a refreshing feeling when wearing lenses. Can also be used interchangeably with the regular type (Moist a).
Comes with an easy-to-use original lens case
Soft One Original CaseEasy one-touch open/close design with an integrated lid, so no worry about losing it. After use, it can be inserted into the cap to dry, ensuring hygienic design.
Active ingredients & blended ingredients
| Ingredient name | Content (per 1mL) | Classification |
|---|---|---|
| Polyhexanide hydrochloride (PHMB) | 0.001mg | Active ingredient (disinfection) |
| Poloxamer (polyoxyethylene polyoxypropylene glycol) | — | Moisturizing veil ingredients |
| Boric acid, edetate salts | — | Specified ingredients on label |
| Viscosity agent, isotonic agent, buffer agent, stabilizer, surfactant, pH adjuster | — | Ingredients |
Indications & Effects
Usage & Dosage
| Step | Operation |
|---|---|
| ① Rubbing | Place the lenses on the palm of your hand, apply a few drops of this solution, and gently rub both sides of the lenses 20–30 times with your fingers. |
| ② Rinsing | Rinse both sides of the lenses thoroughly with this solution after rubbing. |
| ③ Disinfection & Storage | Fill the lens case with this solution, completely immerse the lenses, close the lid, and leave for at least 4 hours. |
| ④ Wearing | Rinse with this solution before wearing (recommended) |
Rohto C Cube Soft One Series Comparison
| Comparison items | [Soft One Cool a] | Hydro One | Soft One Colors | Soft One Moist a |
|---|---|---|---|---|
| Type | Cool type | Designed exclusively for silicone HG lenses | Colored contact compatible type | Moisturizing type |
| Active ingredient (disinfection) | Polyhexanide hydrochloride (PHMB) | Polyhexanide hydrochloride (PHMB) | Polyhexanide hydrochloride (PHMB) | Polyhexanide hydrochloride (PHMB) |
| Moisturizing and care ingredients | Poloxamer | Hyaluronic acid Na + Poloxamer | Poloxamer | Poloxamer |
| Cleaning power features | Protein deposit removal | Double cleaning of protein + lipid deposits (compared to our previous products) | Protein deposit removal | Protein deposit removal |
| Compatible with colored contacts | — | — | ✅ Designed exclusively for colored contacts | — |
| Compatible with silicone HG lenses | All soft lenses | ✅ Especially optimized design | All soft lenses | All soft lenses |
| Refreshing sensation | With (cool sensation) | None (mild) | None (mild) | None (mild) |
| Compatible lenses | All soft lenses Groups I–IV | All soft lenses Groups I–IV | All soft lenses Groups I–IV + colored contacts | All soft lenses Groups I–IV |
| Recommended for | For those who prefer a cool, refreshing sensation | For users of silicone HG lenses and those concerned about lipid deposits | For users of colored contacts and circle lenses | For those who prioritize moist hydration |
🌱 Brand Story
Rohto C Cube is a contact lens care brand developed by Rohto Pharmaceutical Co., Ltd. Founded in 1899, Rohto Pharmaceutical has long been engaged in research and development in the ophthalmology field, focusing on eye drops. The Rohto C Cube series pursues eye health and comfortable wear for contact lens users, offering a wide range of eye care products including disinfectants, eye drops, and eye wash solutions. The Soft One series supports simple and hygienic daily lens care with easy-to-use original lens cases.
- This product is for cleaning, rinsing, disinfecting, and storing soft contact lenses only. Do not ingest.
- If the tip of the container touches the contact lenses or fingertips, the solution may become contaminated or cloudy. Do not use if the solution is cloudy or discolored.
- Do not use for boiling disinfection. Do not mix with other soft contact lens disinfectants.
- Always adhere to the prescribed disinfection time (4 hours or more) and do not wear lenses before disinfection is complete.
- Always discard the liquid in the case after removing the lenses and use fresh solution each time.
- If you have ever had eye allergy symptoms (redness, itching, swelling, etc.) or are under medical treatment, consult an ophthalmologist before use.
- If you experience pain, redness, blurred vision, or other abnormalities during use, immediately remove the lenses and consult an ophthalmologist.
- When allowing children to use, ensure they do so under the guidance and supervision of a guardian.
- Do not use the product past its expiration date.
- Do not use with hard or O2 lenses.
- Store away from direct sunlight, high temperatures, and humidity.
- Keep out of reach of children.
- Do not return the liquid once dispensed back into the bottle container.
- Do not use the product past its expiration date.















































































