Mentadent
An oral-care brand associated with toothpaste using baking soda and peroxide systems, marketed by Unilever outside the United States and Canada.
Last updated August 22, 2026
Overview
Mentadent is an oral-care brand used for toothpaste and related dental products. The brand is associated primarily with Unilever, which markets Mentadent in international markets outside the United States and Canada. In those two North American markets, Unilever transferred the brand rights to Church & Dwight in 2003; Church & Dwight subsequently managed Mentadent as a subsidiary brand of Arm & Hammer and announced the end of sales there in 2016, with discontinuation taking effect in spring 2017. That North American decision concerned only the rights sold to Church & Dwight and therefore did not end Unilever’s use of the brand elsewhere. Unilever introduced Mentadent P around 1982. The brand later became an important part of Unilever’s toothpaste portfolio, and the older Gibbs SR product was renamed Mentadent SR. Gibbs SR had a longer history, dating to the 1950s, and was notable for being the first product advertised on British commercial television. Its first UK television commercial was broadcast on Associated-Rediffusion in London on 22 September 1955, following the creation of the ITV commercial television system under the Television Act 1954. The product’s earlier name referred to sodium ricinoleate, its active ingredient. Mentadent’s most distinctive proposition in North America was a dual-chamber toothpaste pump. The dispenser kept two components separate until they were released, allowing them to combine during brushing. In many formulations, the components were baking soda and peroxide. The resulting reaction was promoted as producing oxygen bubbles intended to help clean, whiten, and freshen the mouth. The toothpaste formula and dispensing concept were attributed to inventor Hans Schaeffer, who later sold the relevant patent. The brand has existed in several product forms, including Mentadent P, Mentadent Sensitive, Mentadent SR, Replenishing White, Advanced Whitening, Advanced Cleaning with Breath Freshening, Advanced Care, and White System products. Product availability has varied by market and over time. Mentadent SR was believed to have been withdrawn from the United Kingdom around 2018, leaving Mentadent P as the principal product there at that time, although reports indicated that several Mentadent toothpastes were still available through Asda in 2024. Thus, Mentadent’s current status is geographically uneven: it was discontinued in the United States and Canada after Church & Dwight’s rights ended, while Unilever continued to market products under the name in selected international markets.
History
Mentadent is an oral-care brand whose modern history is tied to Unilever’s international toothpaste business. Unilever introduced Mentadent P around 1982, after which Mentadent became a significant toothpaste name in the company’s portfolio. The brand also absorbed the identity of the older Gibbs SR product: Gibbs SR, a toothpaste dating from the 1950s, was renamed Mentadent SR. The earlier Gibbs product was named for sodium ricinoleate, its active ingredient. Gibbs SR occupies an important place in British advertising history. It was the first product promoted on UK commercial television. The advertisement was broadcast by Associated-Rediffusion in London on 22 September 1955 at 8:12 p.m. British Summer Time, following the introduction of commercial television under the Television Act 1954. The commercial was written and produced by Brian Palmer and featured a voiceover by Alex Macintosh. This legacy connected the Mentadent SR name with one of the early milestones of British television advertising, even though the product itself originated before the Mentadent branding. Mentadent became particularly distinctive in the United States and Canada because of its dual-chamber pump dispenser. The system separated two ingredients until dispensing, after which they could combine during brushing. Many formulations used baking soda and peroxide. The brand promoted the resulting oxygen-bubble effect as a means of cleaning, whitening, and freshening the mouth. The toothpaste formulation and pump concept were attributed to Hans Schaeffer, who later sold the patent. This packaging and formulation combination differentiated Mentadent from conventional single-tube toothpastes and became one of the brand’s most recognizable features. In 2003, Unilever sold the United States and Canadian rights to Church & Dwight. Church & Dwight managed the brand in those territories as an Arm & Hammer subsidiary brand, while Unilever retained the ability to use Mentadent in other markets. Church & Dwight announced in 2016 that it would discontinue Mentadent in the United States and Canada, with discontinuation effective in spring 2017. Because the transaction had been limited to North American rights, the decision did not terminate Mentadent internationally. Outside North America, the brand continued to appear in selected markets, including the United Kingdom. The product range has included Mentadent P, Mentadent Sensitive, Mentadent SR, Replenishing White, Advanced Whitening, Advanced Cleaning with Breath Freshening, Advanced Care, and White System variants. Market availability has changed over time. Mentadent SR was thought to have been withdrawn from the UK around 2018, although Mentadent P remained available. Reports in 2024 indicated that several Mentadent toothpastes could still be bought through Asda, demonstrating that the brand continued to have a retail presence in at least part of the UK market. Mentadent is therefore best understood as a geographically segmented brand rather than a single globally uniform product line. Unilever remains associated with its continuing international presence, while the Church & Dwight chapter ended with the withdrawal of the brand from the United States and Canada. Its history combines inherited British toothpaste heritage, product and packaging differentiation through the dual-chamber dispenser, and a later division of brand rights by market.
- 2018Mentadent SR reportedly retired in the UK
Mentadent SR was reported to have been withdrawn from the UK, although Mentadent P and other products continued to appear in later retail availability reports.
- 2016North American discontinuation announced
Church & Dwight announced that Mentadent would be discontinued in the United States and Canada effective spring 2017.
- 2003North American brand rights transferred to Church & Dwight
Church & Dwight acquired the United States and Canadian rights to Mentadent from Unilever.
- 1982Mentadent P introduced
Unilever introduced Mentadent P, establishing the Mentadent name as part of its toothpaste portfolio.
- 1955Gibbs SR appears in the first UK commercial television advertisement
The predecessor product Gibbs SR was advertised on Associated-Rediffusion in London on 22 September 1955, making it the first product promoted on UK commercial television.
Products and positioning
Mainstream oral care with emphasis on cleaning, whitening, breath freshening, sensitivity care, and, in some markets, a two-component baking-soda-and-peroxide delivery system.
Mentadent PToothpaste1982
Mentadent P was introduced by Unilever around 1982 and became one of the principal products associated with the brand. It has remained the clearest continuing Mentadent reference in the UK after reports that Mentadent SR was withdrawn.
Mentadent SensitiveSensitive-care toothpaste
A Mentadent toothpaste variant positioned for consumers seeking sensitivity-related oral care. The available reference material identifies the product as part of the brand’s range but does not establish a universal launch date or current availability by market.
Mentadent SRToothpaste
Mentadent SR was the renamed form of Gibbs SR, a toothpaste with roots in the 1950s. The original Gibbs name referred to sodium ricinoleate. Mentadent SR was reportedly withdrawn from the UK around 2018, though the brand’s broader international status may vary by market.
Mentadent Replenishing WhiteWhitening toothpaste
A whitening-oriented Mentadent product listed among the brand’s North American varieties. The available material does not provide a verified launch date or establish current distribution.
Mentadent Advanced WhiteningWhitening toothpaste
A toothpaste variant marketed around an advanced whitening proposition. It was among the varieties associated with the North American Mentadent range before the brand’s discontinuation there.
Mentadent Advanced Cleaning with Breath FresheningCleaning and breath-freshening toothpaste
A Mentadent variant combining a cleaning proposition with breath freshening. The reference material identifies the product name but does not provide a verified launch date or continuing market availability.
Mentadent Advanced CareOral-care toothpaste
An advanced-care product in the Mentadent portfolio. Specific formulation details, launch timing, and current availability are not established by the available reference material.
Mentadent White SystemWhitening system
A Mentadent whitening-system product associated with the brand’s former North American range. The available source does not document its launch date or current retail status.
Mentadent dual-chamber pumpToothpaste dispensing system
Mentadent became known in North America for a pump with two separate chambers. The design kept ingredients apart until dispensing; in many formulations, baking soda and peroxide were combined during brushing to produce oxygen bubbles promoted for cleaning, whitening, and freshening.
Flagship businesses
- Mentadent P
- Mentadent Sensitive
- Mentadent SR
- Mentadent toothpaste using baking soda and peroxide
Brand decisions
- 2016Discontinuation of Mentadent in the United States and CanadaStrategy
Church & Dwight announced that it would end Mentadent sales in the United States and Canada, where it controlled the local rights.
What changed. The company scheduled discontinuation for spring 2017.
Aftermath. The decision removed Mentadent from those two markets but did not affect Unilever’s continued use of the brand internationally.
- 2003Transfer of United States and Canadian brand rightsM&A
Unilever transferred the Mentadent rights for the United States and Canada to Church & Dwight while retaining the brand for other international markets.
What changed. Church & Dwight operated Mentadent as an Arm & Hammer subsidiary brand in the two North American territories.
Aftermath. The brand became subject to different ownership and portfolio decisions in North America than in Unilever’s remaining markets.
Recent events
- 2018Mentadent SR reportedly withdrawn from the United Kingdom
Reports indicated that Unilever may have quietly retired Mentadent SR in the UK, leaving Mentadent P as the main product then available under the brand. Later availability reports showed that multiple Mentadent toothpastes could still be purchased through Asda in 2024.
Product generation - 2016Church & Dwight announces discontinuation of Mentadent in the United States and Canada
Church & Dwight announced that it would discontinue Mentadent sales in the United States and Canada, with the change scheduled to take effect in spring 2017. The decision did not affect Unilever’s separate international rights.
Product generation - 2003Church & Dwight acquires United States and Canadian Mentadent rights
Church & Dwight obtained the United States and Canadian rights to the Mentadent brand from Unilever and operated it as an Arm & Hammer subsidiary brand.
M&A
Sources
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