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Fermented rice bran toner OEM/ODM manufacturing
Fermented Rice Bran Toner · OEM/ODM
Rice-rinsing water and rice bran are part of traditional beauty practices in many Asian countries; a 2022 review (Zamil et al.) notes that rice has been used for cosmetic purposes for centuries. That is a cultural story for your brand, not yet evidence of efficacy. The modern version of this story is rice bran fermented by Saccharomyces microorganisms (INCI: Saccharomyces/Rice Bran Ferment), supplied as a ready-made blend in water, butylene glycol and 1,2-hexanediol. Evidence specific to this ingredient is limited: in our PubMed search we found no human studies, and the closest data come from cell experiments. That is why this fermented rice bran toner is built as a moisturizing toner: the fermented rice bran carries the story, while the "moisturizes" and "leaves skin soft and smooth" claims rest on the humectants in the formula and on testing of the finished product; if your brand wants a "more even-looking skin tone" positioning, that claim rests on 2–5% niacinamide. Butter-C offers turnkey OEM/ODM manufacturing, from formula development and testing to labeled finished goods and the notification dossier.
Formula base
Fermented rice bran, humectants and water
A toner is almost entirely water, so the four groups below decide the skin feel, the stability and the product story.
Fermented rice bran: reading the raw material label correctly
By its INCI definition, Saccharomyces/Rice Bran Ferment is the product obtained by fermenting rice bran with Saccharomyces microorganisms; its listed function is humectant. The material Butter-C holds is the blend "Water (and) Butylene Glycol (and) 1,2-Hexanediol (and) Saccharomyces/Rice Bran Ferment": the use level refers to the blend, not to the ferment itself, and the INCI label lists all four components.
Not a live microbial preparation
The INCI name is "Ferment" (fermentation product), not "Ferment Filtrate" (a filtrate with the cells removed). As CIR describes fermentation INCI names (for example for Lactobacillus; see our Lactobacillus ferment filtrate article), a "Ferment" is usually the whole culture, sterilized to inactivate the microorganisms, and may still contain inactivated cells. The supplier needs to confirm the inactivation process (and any filtration) and provide a microbiology certificate of analysis for every lot. The label should not say "live probiotics" or "probiotic".
Base humectants
Glycerin, butylene glycol (partly already in the blend), betaine, sodium PCA, panthenol and a small amount of sodium hyaluronate; this group is the main basis for the moisturizing claim.
Actives matched to positioning
Niacinamide at 2–5%, the range with human data on skin tone evenness and sebum (per our niacinamide article); allantoin for a gentle positioning. Every added ingredient is rechecked for clarity, pH and color.
Key technical points
Color, odor and microbiology: what is specific to a fermented ingredient
Color and odor of the ferment blend
The blend can carry its own color and odor, is sensitive to heat and light, and tends to darken over time (per the raw material data). It is added in the cool-down phase without heating; the use level is fixed after color and odor checks through accelerated aging and light exposure.
Preservation for a high-water toner
High water activity plus a fermented agricultural raw material make a preservative efficacy (challenge) test to ISO 11930 mandatory. Phenoxyethanol/ethylhexylglycerin (phenoxyethanol ≤ 1%), or sodium benzoate (≤ 0.5% as acid in leave-on products) with potassium sorbate (≤ 0.6% as acid) at a low enough pH; limits per ASEAN Annex VI. The 1,2-hexanediol that comes with the blend does not replace the finished product's preservative system.
pH and buffering
Moisturizing toners are usually kept at pH 5.0–6.0; niacinamide is stable at pH 5–7. The blend's pH is measured per lot, buffered with citric acid/sodium citrate, and pH drift is tracked across stability time points.
Clarity and metal ions
Extracts and ferments can change color with metal ions and haze in the cold: disodium EDTA is added, the batch is filtered before filling, and samples are always tested at 4°C.
Three formulation directions
Three kinds of fermented rice bran toner
Fluid moisturizing toner
Water-thin: fermented rice bran with glycerin, betaine and panthenol; patted in by hand or applied with a cotton pad. For normal and dry skin.
Lightly thickened essence
Sodium hyaluronate or a gum at a very low level, with a higher share of the ferment blend as a selling point. Absorbs more slowly; tackiness has to be balanced for layering.
Fermented rice bran and niacinamide toner
2–5% niacinamide in a pH 5–7 base. The "helps skin tone look more even" claim rests on niacinamide, not on the fermented rice bran.
Packaging designed with the formula
Opaque or dark bottles limit darkening of the ferment; flip-top, screw cap or pump closures. A spray format needs its own assessment and is not assumed.
Parameters we monitor
What our R&D lab measures on every sample
These are the parameters Butter-C monitors during formula development and scale-up to production. Specific limits are agreed with you on the approved sample and then written into the product's in-house specification.
- Appearance, color & odor
- Clarity measured as turbidity; color and odor compared with the reference sample at each stability time point, the most sensitive indicators for a fermented ingredient.
- pH
- Measured directly at 25°C; pH drift tracked across stability time points.
- Density & conductivity
- Two quick batch-identity checks for an all-water system that catch mixing errors.
- Niacinamide content
- Assayed by HPLC when the formula contains niacinamide; checked per batch.
- Stability
- Accelerated aging at 40°C, freeze–thaw cycling, light exposure and storage at 4°C; monitored for darkening, haze and precipitation.
- Incoming raw material microbiology
- Microbiology certificate of analysis for every lot of the ferment blend, rechecked before production.
- Microbiology & challenge test
- Tested at a GLP / ISO 17025-accredited laboratory; preservative efficacy (challenge) test to ISO 11930 on the final formula.
- Skin assessment
- Irritation testing as required by the target market; to print a hydration figure on the label, it is measured with an instrument on volunteers using the finished product.
- Packaging compatibility
- Filled into the actual bottle, cap or pump; monitored for material odor, light penetration and seal integrity.
Claims
Claims matched to the evidence for fermented rice bran
In our PubMed search (02 Nov 2026) we found no human studies with Saccharomyces/Rice Bran Ferment. The closest data come from a mouse melanoma cell line: an extract of rice bran co-fermented with Lactobacillus rhamnosus and Saccharomyces cerevisiae reduced melanin synthesis by lowering MITF, without directly inhibiting tyrosinase (Chung et al., 2009). This in vitro result is not enough to support a brightening claim for a toner. Level of evidence: limited. Annex 03-MP of Vietnam's Circular 06/2011/TT-BYT also does not accept claims of preventing or reversing aging.
Moisturizes, leaves skin soft and smooth after cleansing
Instead of: repairs skin, regenerates skin.
Contains fermented rice bran
Instead of: contains live probiotics, probiotic, balances the skin microbiome.
Helps skin tone look more even (only when the formula has 2–5% niacinamide)
Instead of: whitening from fermented rice bran, removes melasma, erases dark spots.
pH stated as a measured value
Instead of: balances skin pH, tightens pores.
The rice water and rice bran story
Presented clearly as a beauty tradition; not written as a research finding.
Warnings
Avoid the eye area; stop use if irritation occurs. People who have reacted to fermented products or to cosmetics should read the full ingredient list and test on a small area first.
Manufacturing specifications
Current capabilities
- Texture
- Clear fluid toner or lightly thickened essence; may carry a natural tint from the ferment blend.
- Pack formats
- Flip-top, screw-cap or pump bottles, preferably opaque. Volume agreed when packaging is selected.
- Minimum order quantity
- Agreed per order, depending on the formula direction and pack format chosen.
- Testing
- Performed at a GLP / ISO 17025-accredited laboratory; certificate of analysis delivered with every batch.
- Documentation
- Product Information File (PIF) and notification dossier prepared by Butter-C, including the supplier's documentation for the ferment blend.
- Packaging
- Label design, printing and packing run in parallel with formula development.
Suggested product concept
Moisturizing fermented rice bran toner for normal and dry skin
A product concept to help you picture the possibilities, not a ready-made product for sale. The actual formula is developed around your brand's positioning and price range.
Fermented rice bran as the named ingredient
Saccharomyces/Rice Bran Ferment blend in water, butylene glycol and 1,2-hexanediol; use level per the supplier's technical data sheet, fixed after color and odor checks.
Humectant group
Glycerin, betaine, panthenol, sodium hyaluronate: the basis for the moisturizing claim.
Alcohol-free, pH 5.0–6.0
pH agreed on the sample and measured on every finished batch; preservative system confirmed by an ISO 11930 challenge test.
Opaque flip-top bottle
Limits darkening of the fermented ingredient; the label lists the full INCI of the blend.
Customization options
What you can specify
Within the same product type, each brand targets a different customer group. Tell us your requirements in the areas below, and our team of pharmacists will develop a matching formula.
Ferment blend level
A moderate level for a daily toner or a higher level as a selling point; affects color, odor and cost.
Skin feel
Water-thin or a lightly thickened essence; fast-absorbing or leaving a moist layer.
Supporting actives
Niacinamide, panthenol, allantoin, chosen together with the pH range.
Rice bran product set
Paired with a rice bran oil facial cleanser to keep one ingredient story.
Fragrance and color
Fragrance-free or lightly scented; the natural color of the blend or adjusted to the label.
Ingredient direction
Alcohol-free, fragrance-free, vegan; please state these from the start so suitable raw materials can be selected.
Further reading
Related topics
Lactobacillus ferment filtrate in cosmetics
Ferment, ferment filtrate and lysate compared, and why a ferment is not a live probiotic (in Vietnamese).
Galactomyces ferment filtrate in cosmetics
Another fermented ingredient: laboratory data and the level of human evidence (in Vietnamese).
Rice bran oil in cosmetics
The different "rice" ingredients on a label, each with its own INCI name (in Vietnamese).
Toner manufacturing
General principles of toners: humectant system, pH, clarity and preservation.
Niacinamide in cosmetics
Human data at 2–5% for skin tone evenness and sebum (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).
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