BUTTER-C
Signature ingredients
Arginine toothpaste OEM/ODM manufacturing
Arginine Toothpaste · Signature Ingredients · OEM/ODM
Arginine (INCI Arginine, L-arginine) is an alkaline amino acid, a white crystalline powder that dissolves readily in water and is produced mainly by fermentation. In toothpaste for sensitive teeth, 8% arginine is paired with calcium carbonate: in vitro experiments by authors from the manufacturer showed that the pair occludes dentin tubules and that both components are needed. A 2026 systematic review with network meta-analysis (93 studies) placed arginine and stannous fluoride toothpastes among the first-line self-care options for sensitive teeth, but the certainty of the evidence for arginine is low and many studies have industry authors. For brand owners, that is a story backed by real data, paired with a cosmetic-level claim: “helps reduce the feeling of sensitivity in sensitive teeth with daily use”, reviewed by regulatory affairs for each dossier. Unlike the sensitive toothpaste page (several actives), this page goes deep into what is specific to arginine: a calcium carbonate base goes with MFP fluoride rather than sodium fluoride, the alkaline pH of the formula, soluble fluoride testing and accurate wording about cavities. The product is positioned for adults. Butter-C offers turnkey OEM/ODM manufacturing, from formulation and testing to a finished, labeled product with its notification dossier.
Formula base
8% arginine in a calcium carbonate base with MFP fluoride
Arginine dissolves in the water phase and raises the pH of the paste; calcium carbonate is both the abrasive and one half of the arginine – calcium carbonate pair; the fluoride source (if any) must be compatible with calcium.
Arginine — reading the raw material correctly
PubChem (CID 6322): L-arginine, C6H14N4O2, 174.20 g/mol, CAS 74-79-3, water solubility 182 mg/mL at 25 °C. The 2013 CIR report lists three dissociation constants, pK 2.17, 9.04 and 12.48, and bacterial fermentation followed by crystallization as the common manufacturing method; arginine solutions are strongly alkaline and absorb CO2 from the air (Merck Index on PubChem). Arginine HCl (CAS 1119-34-2) is the salt assessed in the same report — the INCI label follows the form on the certificate of analysis. Do not confuse it with Ethyl Lauroyl Arginate HCl, a derivative preservative with its own entries in Annex VI Ref 58 (within oral care, mouthwash only) and Annex III Ref 207. Butter-C’s ingredient list does not currently include arginine as a single ingredient (it appears only in the INCI string of a propolis preparation), so it is sourced per order, with a certificate of analysis stating L-arginine identity, purity, heavy metals and moisture.
Calcium carbonate: abrasive and one half of the pair
Petrou et al. (2009, in vitro; first author from the manufacturer’s technology center): confocal, scanning electron and atomic force microscopy showed the arginine – calcium carbonate technology rapidly occluding dentin tubules; the plug contained high levels of calcium, phosphate and carbonate, with arginine incorporated; both arginine and calcium carbonate were essential; dentin fluid flow fell, and the plug resisted normal pulpal pressure and an acid challenge. In this line, then, calcium carbonate is not there only for cleaning; a silica-based arginine formula has no checked data. CIR describes two industrial grades — ground (GCC) and precipitated (PCC) — that differ in particle size and impurities; changing grade or supplier means re-measuring abrasivity, consistency and soluble fluoride.
Fluoride: MFP, not sodium fluoride
Hattab (1989, in vitro): adding sodium fluoride solution to calcium- or aluminum-containing abrasives lost 60–90% of the fluoride after one week at room temperature; calcium-containing abrasives were markedly more compatible with MFP (sodium monofluorophosphate) than with sodium fluoride. Even with MFP: in a survey of 30 Chilean toothpastes after one year, 5 had 30–50% insoluble fluoride, 4 of them using MFP with calcium-based abrasives (Fernandez et al., 2017); in a simulated-brushing experiment on 6 calcium-containing retail pastes, those with calcium carbonate had only 27–61% of their fluoride in bioavailable form although total fluoride was 94–105% of the label (Shen et al., 2021; the abstract does not state the fluoride form). The sensitivity trial of the 8% arginine paste used 1,450 ppm F as MFP in a calcium carbonate base (Ayad et al., 2009).
Humectants, foam, flavor and preservation
Sorbitol and glycerin keep the paste from drying out; cellulose gum or xanthan gum build structure. Sodium Lauryl Sulfate for moderate foam, Cocamidopropyl Betaine for an SLS-free version; mild mint flavor, low-dose menthol, sodium saccharin and xylitol for sugar-free sweetness (with no caries claim for xylitol). No acids (citric acid…) in a carbonate base — they release CO2. Sodium Benzoate in oral care products is limited to 1.7% calculated as benzoic acid (Annex VI Ref 1); arginine pushes the pH into the alkaline range, where benzoic acid is mostly in salt form, so the preservative system must be confirmed by ISO 11930 challenge testing on the actual formula (background knowledge); if it fails, the system is changed, for example to Phenoxyethanol at up to 1.0% (Annex VI Ref 29).
Key technical points
Sensitivity evidence, cavities, Annex III Ref 27, pH and safety
These are the points where an arginine toothpaste differs from an ordinary toothpaste; each is settled by the sources read, the raw material certificates and measurements on the sample.
Evidence on sensitivity — read at the right level
Network meta-analysis by Gormley et al. (2026): 93 studies (9,548 participants), 47 studies (4,636) in the analysis, compared with a benchmark fluoride toothpaste at 2 weeks. Arginine paste: Schiff scale (evaporative cold air) MD −0.78 (95% CI −1.02 to −0.54) and tactile stimulus (Yeaple probe) MD 9.78 (4.69–14.86), both with a low confidence rating; stannous fluoride paste: −0.85 (high) and 14.87 (moderate). The authors advise choosing between the two by preference, tolerability and availability, without expecting either to clearly outperform the other. Martins et al. (2020, 125 randomized trials): arginine was beneficial for the air stimulus compared with fluoride toothpaste, with moderate certainty. Reading it correctly: the results belong to the whole formula (arginine, calcium carbonate, usually with MFP); the mechanism data come from authors at the arginine paste manufacturer, while head-to-head trials run by authors from competing manufacturers usually report their own paste as equal or better.
Cavities: a divided verdict, not a claim
Li et al. (2015): 10 studies, 15,546 participants; a meta-analysis of 7 studies suggested that arginine with a calcium compound and fluoride may outperform matched fluoride-only formulas, but the level of evidence was downgraded for risk of bias and potential publication bias, and more non-industry-supported studies are needed. Astvaldsdottir et al. (2016): insufficient evidence to support adding arginine to toothpaste for caries prevention; the authors point to conflicts of interest in the included studies. Yin et al. (2026): a 2-year double-blind randomized trial in 6,000 children aged 10–14 in China — the fluoride-free 8% arginine paste had a 26.0% lower DMFS increment than a 1,450 ppm sodium fluoride paste, while the 1.5% paste showed no difference; the test paste manufacturer funded the study and four authors were its employees. Butter-C therefore does not attach any cavity claim to arginine and does not use “fluoride replacement”.
Annex III Ref 27 — quoted exactly, with the MFP calculation
ASEAN Annex III (version 2026-1, 22 June 2026), Ref 27 “Disodium fluorophosphate / Sodium monofluorophosphate”, CAS 10163-15-2/7631-97-2: field of use “(a) Oral hygiene products (except mouthwash) (b) Mouthwash”; maximum “0.15% calculated as F. When mixed with other fluorine compounds permitted under this Annex, total F concentration must not exceed 0.15%”. Using the 0.132 factor (18.998 / 143.95) and assuming a pure raw material: 1,000 ppm F ≈ 0.76% MFP; 1,450 ppm ≈ 1.10%; the 1,500 ppm ceiling ≈ at most 1.13% (rounded down) — the actual level is corrected for the certificate of analysis, with every fluorine source added to the same total. Arginine and Arginine HCl: names and CAS 74-79-3 and 1119-34-2 were searched — they are not yet listed in Annexes II, III, VI or VII; that does not mean “no limit”: the level relies on trial data and the safety assessment in the PIF.
Alkaline pH and CO2
At 8%, the pH of the base is governed by arginine (inferred from its strong alkalinity, ingredient dossier); the dossier has no checked source on arginine’s stable pH range in cosmetics. Butter-C dissolves arginine in the water phase, adds it slowly in a closed vessel to limit CO2 uptake, measures the pH of a diluted sample after each adjustment and follows it through aging. Calcium carbonate dissolves and fizzes in acid, so the formula contains no acidic ingredient, and tubes are watched for swelling.
Raw material and consumer safety
CIR (Burnett et al., 2013) concluded: “The Panel concluded that α-amino acids, listed below, are safe in the present practices of use and concentration in cosmetics” — the list includes Arginine and Arginine HCl; repeated insult patch tests in people (56–115 per study) with products containing 0.025–1.5% arginine showed no irritation or sensitization. The 1.5–8% used in toothpaste is far above the level reported for incidentally ingested products in CIR’s survey (at most 0.001%), so safety at this level rests on trial data: the full text of Yin et al. (2026) reports no serious adverse events over 2 years. The ingredient article’s PubMed search (10/2026) found no case of allergic contact dermatitis to arginine. CIR is funded by the US cosmetics industry association. Pregnancy and breastfeeding: not enough data — ask a doctor.
Three formulation directions
Three arginine toothpaste lines
Arginine 8% – MFP 1,450 ppm – mild mint
8% arginine, calcium carbonate, about 1.10% MFP (corrected for the certificate of analysis), sorbitol, Sodium Lauryl Sulfate for moderate foam, mild mint; the everyday line for adults with sensitive teeth.
Arginine – gentle foam, SLS-free
Cocamidopropyl Betaine instead of SLS, light flavor; “SLS-free” can be stated as a description of the ingredients; mildness is assessed on the finished product, with no “non-irritating” claim.
Fluoride-free 8% arginine
Arginine and calcium carbonate with no fluorine compound; the carton states “fluoride-free” as a description of the ingredients. No cavity claim and no “fluoride replacement” — the 2026 trial was manufacturer-funded, a 2016 review found insufficient evidence, and fluoride toothpaste has a large body of dental data (see the sodium fluoride toothpaste page).
Packaging is designed together with the formula
Multi-layer plastic tubes or lined aluminum tubes, screw or flip-top caps; stability studies run in the actual commercial packaging, watching for tube swelling and paste drying at the nozzle. The carton carries the Ref 27 wording and the 6 mm dot for the MFP version.
Parameters we monitor
What our R&D team measures on every sample
Below is the set of parameters Butter-C monitors during formula development and scale-up. Specific limits are agreed with you on the approved sample and then written into the product’s in-house specification.
- Incoming arginine and MFP certificates
- Arginine: L-arginine identity, form (base or HCl salt), purity, heavy metals, moisture. MFP: content, to correct the fluorine calculation.
- Calcium carbonate certificate
- GCC or PCC grade, particle size, heavy metals (lead, arsenic, cadmium), microbiology; a change of grade means re-measuring abrasivity and soluble fluoride.
- Arginine content
- Assayed in the finished product at release and after aging; method agreed with the testing laboratory.
- Total and soluble fluoride
- MFP version: measured with an ion-selective electrode at release, during accelerated aging and in real time in the commercial packaging; checked against 0.15% F (Ref 27).
- pH
- Measured on a diluted sample by the specified method; pH drift tracked through the stability time points.
- Viscosity, extrusion
- The paste extrudes evenly, stands on the brush and does not bleed water.
- Stability
- Heat–cold cycles, storage at 40°C; watching for water separation, hardening, gas formation, tube swelling, color and taste changes.
- Abrasivity
- Per the calcium carbonate supplier’s data sheet; assessed on the finished product when a stain-removal claim is made.
- Microbiology & preservative challenge
- Tested at a GLP/ISO 17025 accredited center; preservative challenge test to ISO 11930 at the finished product’s actual pH.
- Label content
- Check “Contains Disodium fluorophosphate”, the sentence for children aged 6 and under, the 6 mm dot and the ppm F matching the assay; no cavity claim on the fluoride-free version.
Claims
Claims for an arginine toothpaste
For oral and dental hygiene products, Appendix 03-MP of Circular 06/2011/TT-BYT does not accept claims about preventing or acting on dental abscess, gumboils, gum inflammation, mouth ulcers, periodontitis, pyorrhoea, stomatitis, misaligned teeth or oral infections (an open-ended list), nor claims of whitening tetracycline stains; the text allows claims to be softened toward cosmetic wording. Dentin sensitivity and cavities are not named — Butter-C reads this cautiously: sensitivity claims stay at the level of sensation, and cavity claims are used only when regulatory affairs confirms them in writing.
Helps reduce the feeling of sensitivity in sensitive teeth with daily use (reviewed by regulatory affairs for each dossier)
Instead of: instant relief, drug-like claims about sensitivity, “63% less sensitivity” borrowed from another study.
Contains arginine and calcium carbonate; cleans teeth
Instead of: “permanently seals dentin tubules”, “rebuilds dentin”, “restores enamel”.
Contains fluoride (MFP version); “helps prevent cavities” is tied to fluoride and used only when regulatory affairs confirms it
Instead of: cavity claims tied to arginine, cavity claims on the fluoride-free version, “fluoride replacement”.
Mild mint flavor; helps keep breath fresh
Instead of: tooth whitening, drug-like claims about the gums or periodontitis, claims to act on bacteria.
Mandatory label wording under Ref 27 (MFP version)
“Contains Disodium fluorophosphate.” and “Children of 6 years and younger: use a pea-sized amount for supervised brushing to minimize swallowing. In case of intake of fluoride from other sources consult a dentist or doctor.” (copied exactly from Ref 27); footnote (12): applies to all toothpaste containing 0.1–0.15% fluoride unless already labeled as contra-indicated for children (e.g. “For adult use only”), and a 6 mm solid circle must appear between the words “pea sized” and “amount”. The Vietnamese wording of the label is confirmed by regulatory affairs.
Directions, warnings and intended users
Brush twice a day, spit out, do not swallow; keep out of reach of children. If sensitivity persists, or a cavity or cracked tooth is suspected, see a dentist — toothpaste does not replace a dental examination. Stop use if the inside of the mouth burns or turns red. Children use toothpaste per the kids’ toothpaste page. Pregnancy and breastfeeding: not enough data — ask a doctor. Instead of: “replaces a dental visit”, “safe to swallow”, “for the whole family including babies”.
Manufacturing specifications
Current capabilities
- Textures
- Opaque white paste (calcium carbonate is insoluble, so this line is not made as a clear gel).
- Ingredients
- Arginine and MFP: sourced per order, with certificates of analysis. Calcium carbonate: on Butter-C’s ingredient list; the grade and particle size for toothpaste are confirmed by the certificate of analysis.
- Pack formats
- Multi-layer plastic tubes, aluminum tubes, screw or flip-top caps. Fill weight agreed when packaging is selected.
- Minimum order quantity
- Agreed per order and per flavor.
- Testing
- Performed at a GLP/ISO 17025 accredited center, including arginine, total fluoride and soluble fluoride assays; results delivered with each batch.
- Documentation
- Product information file (PIF) and notification dossier prepared by Butter-C, with raw material certificates and the fluorine calculation sheet.
- Packaging
- Label design, cartons, printing and packing run in parallel with formulation.
Suggested product concept
8% arginine – calcium carbonate – MFP toothpaste for sensitive teeth
One 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.
8% arginine as the named ingredient
The level used in the sensitivity trials; assayed in the finished product for every batch.
Calcium carbonate base
The abrasive and one half of the arginine – calcium carbonate pair; sorbitol and glycerin as humectants.
MFP fluoride at 1,450 ppm F
About 1.10% MFP corrected for the certificate of analysis; soluble fluoride assayed at release and after aging.
100 g tube and carton
Mild mint, moderate foam; the carton carries “Contains Disodium fluorophosphate”, the child warning with the 6 mm dot, “helps reduce the feeling of sensitivity in sensitive teeth with daily use” and advice to see a dentist if sensitivity persists.
Customization options
What you can specify
The same product type can serve very different customers. Tell us your requirements in the areas below and our pharmacists will develop a matching formula.
Arginine level
8%, as in the sensitivity trials; at lower levels there are no clinical sensitivity data to cite, so a sensitivity claim would need testing of the product itself.
Fluoride source
MFP within 1,000–1,500 ppm F, with all fluorine sources totaling ≤ 0.15%; no sodium fluoride in a calcium carbonate base; or a fluoride-free version.
Flavor
Mild mint, strong mint, mint-free.
Foaming agent
Sodium Lauryl Sulfate for moderate foam or SLS-free Cocamidopropyl Betaine.
Other actives for sensitive teeth
Potassium nitrate (proposed action on nerves, unconfirmed in human teeth; silica base with sodium fluoride) — see the potassium nitrate toothpaste page; an overview of actives is on the sensitive toothpaste page.
Product sets
Toothpaste paired with an alcohol-free mouthwash; total fluoride calculated separately for each product.
Further reading
Related knowledge
Arginine in toothpaste and cosmetics
Mechanism, evidence on sensitivity and cavities, the CIR conclusion and ASEAN status (in Vietnamese).
Sensitive toothpaste OEM/ODM manufacturing
Actives for sensitive teeth and gentle bases; this page focuses on arginine.
Potassium nitrate toothpaste OEM/ODM manufacturing
A sensitive-teeth active with a different mechanism, paired with sodium fluoride in a silica base.
Sodium fluoride toothpaste OEM/ODM manufacturing
Dental data on fluoride, salt-to-fluorine calculation and label warnings.
Calcium carbonate in cosmetics and toothpaste
Abrasive, purity and why a calcium carbonate base goes with MFP (in Vietnamese).
Daily oral care routine
Brushing, fluoride and dental visits per public recommendations (in Vietnamese).
Circular 06/2011/TT-BYT
Appendix 03-MP: claims not accepted for oral care products (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 →
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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