BUTTER-C
Oral care
Mouthwash OEM/ODM manufacturing
Mouthwash · Mouth Rinse · OEM/ODM
Mouthwash is an extra step after brushing, chosen mainly for the clean feeling and fresh breath it leaves. For users, quality comes down to three things: enough cooling without burning, a clear solution with no cloudiness, and a flavor that lasts well after rinsing. Technically, the challenge lies in solubilizing essential oils and flavors in a water base, keeping the solution clear across temperature conditions, and choosing actives that are compatible with each other. Alcohol-based lines give a strong cooling sensation; alcohol-free lines are gentler and suit a wider range of users. Butter-C offers full-service OEM/ODM manufacturing, from formula to labeled finished product with its notification dossier.
Formula base
A clear solution of solvents, flavor solubilizers and actives
Mouthwash is an aqueous solution in which flavors and essential oils are dissolved using alcohol or non-ionic solubilizers. Actives are chosen to match the product direction.
Solvents
Purified water; food-grade alcohol for alcohol-based lines; glycerin and propylene glycol for alcohol-free lines.
Solubilizers
Poloxamer, PEG-40 hydrogenated castor oil, polysorbates — keep flavors and essential oils fully dissolved and clear.
Actives
Zinc salts and CPC for fresh breath; sodium fluoride for cavity-prevention lines; green tea and betel leaf extracts.
Flavor and preservation
Mint, mint green tea, cinnamon flavors; non-cariogenic sweeteners; a preservative system suited to the pH.
Key technical points
Four factors that define mouthwash quality
Stable clarity
Flavors and essential oils must dissolve completely; no clouding when chilled or after hot, humid conditions.
Moderate cooling
Alcohol, menthol and flavor are balanced for a cool sensation without burning; finalized on rinse-test samples.
Compatible actives
CPC does not go with anionic surfactants; zinc salts readily precipitate with phosphates. The system is chosen to work together from the outset.
Aftertaste
Zinc is astringent and CPC slightly bitter — sweeteners and flavor are needed to mask these properly.
Three formulation directions
Three common mouthwash lines
Daily fresh breath
Zinc salts, CPC, mint flavor; with or without alcohol.
With fluoride
Sodium fluoride at the level intended for mouthwash, with the mandatory warnings; for people who want extra care for their teeth.
Herbal
Green tea, betel leaf, clove, eucalyptus oil; natural color and a mild herbal taste.
Packaging is planned with the formula
PET or recycled PET bottles with a measuring cap; alcohol-based lines need seal and weight-loss testing.
Parameters we monitor
What our R&D lab measures on every sample
These are the parameters Butter-C monitors while developing the formula and scaling it up to production. Specific limits are agreed with you on the approved sample and then written into the product's in-house specification.
- pH
- Measured right after compounding and after aging.
- Clarity
- Observed at cold, room and elevated temperatures.
- Alcohol content
- For alcohol-based lines; stated accurately on the label if claimed.
- Active content
- Fluoride, zinc or CPC per the formula, quantified on the finished product.
- Color, odor, taste
- Stable after aging tests, no fading under light.
- Microbiology
- Tested at a GLP / ISO 17025-accredited laboratory.
- Preservative performance
- Preservative efficacy (challenge) test, especially for alcohol-free lines.
- Packaging compatibility
- Weight loss, bottle deformation and cap leakage are monitored.
Claims
Writing claims within the cosmetic scope
Mouthwash claims very easily drift into dental-product territory. Butter-C reviews the wording on the label and marketing materials as soon as the notification dossier is prepared.
Keeps breath fresh
Instead of: treats bad breath, kills bacteria that cause bad breath.
Helps clean the mouth and reduce plaque build-up
Instead of: kills 99.9% of bacteria.
Helps prevent cavities (fluoride products)
Instead of: cures tooth decay.
Gum care
Instead of: treats gingivitis, stops gum bleeding, treats mouth ulcers.
Warning for fluoride lines
"Contains sodium fluoride"; not for use by children under 6.
Directions
Rinse and spit, do not swallow; state the amount and rinsing time.
Manufacturing specifications
Current capabilities
- Textures
- Clear solution, colored or colorless.
- Formats
- PET bottles with a measuring cap, travel bottles, single-use sachets. Volume is agreed when choosing packaging.
- Minimum order quantity
- Agreed per order and per flavor.
- Testing
- Performed at a GLP / ISO 17025-accredited laboratory; a certificate of analysis is delivered with each batch.
- Documentation
- The Product Information File (PIF) and the notification dossier are prepared by Butter-C.
- Packaging
- Label design, printing and packing run in parallel with formula development.
Suggested product concept
Mint green tea mouthwash with zinc
A product concept to help you picture the possibilities — not a ready-made product for sale. The actual formula is developed to match your brand positioning and price range.
Zinc salts
Help keep breath fresh; the astringent taste is masked with flavor and sweetener.
Green tea extract
Provides a herbal story and a natural pale green color.
Moderate cooling
Low alcohol or alcohol-free, depending on positioning.
500 ml bottle
Measuring cap; the label clearly states how to use it: rinse and spit.
Customization options
What you can specify
The same product type can serve very different customer groups depending on the brand. Tell us your requirements in the areas below and our team of pharmacists will develop a matching formula.
Alcohol or alcohol-free
Determines the cooling intensity and the target users.
Actives
Zinc, CPC, fluoride or a herbal line.
Flavor
Strong mint, mild mint, green tea, cinnamon, fruit.
Color
Colorless, green, purple, amber — colorants permitted for oral care products.
Hero botanicals
Betel leaf, clove, green tea, licorice.
Packaging
Large family bottles, travel bottles, single-use sachets for hotels.
Further reading
Related topics
Toothpaste manufacturing
The product that pairs with mouthwash in an oral care set.
Herbal toothpaste manufacturing
Botanical sources shared with herbal mouthwash lines.
An oral care routine
Where rinsing fits into the daily routine (in Vietnamese).
Cosmetic labeling rules
Mandatory warnings for products containing fluoride (in Vietnamese).
How we work
From idea to finished batch
Eight steps and three milestones signed off by both sides: approved sample, notification number, finished batch. Step-by-step details (in Vietnamese) →
Get started
Tell us about the product you plan to launch
Send us your product direction and expected volume. Our team will get back to you during business hours (Vietnam time, GMT+7).
Head office: Huu Le village, Dai Thanh commune, Hanoi · Factory: Thanh Oai Industrial Cluster, Binh Minh commune, Hanoi, Vietnam
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