Sensodyne was first introduced in 1961 as one of the earliest toothpastes specifically developed to relieve tooth sensitivity. The original formula contained strontium chloride, an ingredient intended to reduce the pain caused by exposed dentin. [1]

The brand was originally developed and marketed by Block Drug Company, a pharmaceutical company founded in New York. In 2000, Block Drug was acquired by SmithKline Beecham, which later became GlaxoSmithKline (GSK). As GSK expanded its consumer healthcare business, Sensodyne grew into one of its flagship oral care brands. [1]

In July 2022, GSK spun off its consumer healthcare division into a new independent company called Haleon, making Sensodyne one of Haleon’s leading global brands. [1]

Sensodyne’s primary purpose is to help relieve and prevent tooth sensitivity, a condition that causes short, sharp pain when consuming hot, cold, sweet, or acidic foods and beverages. [2]

The brand’s mission is to provide everyday protection against sensitivity while also offering the benefits expected from a modern toothpaste, including:

• Cavity prevention

• Plaque control

• Fresh breath

• Gum health

• Enamel protection

• Teeth whitening (selected products)

Tooth sensitivity typically occurs when the protective enamel or gum tissue is worn away, exposing the dentin beneath. Tiny channels within the dentin allow external stimuli to reach the nerves inside the tooth, resulting in pain. [2]

Different Sensodyne products use different technologies to reduce sensitivity:

Potassium Nitrate

Potassium nitrate works by calming the nerve inside the tooth, reducing its response to painful stimuli over time. [2]

Stannous Fluoride

Stannous fluoride creates a protective barrier over exposed dentin, helping block the pathways that lead to the tooth’s nerve while also protecting against cavities. [2]

NovaMin Technology

Some Sensodyne Repair & Protect products contain NovaMin, a calcium sodium phosphosilicate bioactive glass that helps form a mineral layer over exposed dentin, supporting the natural repair process of sensitive areas. Availability varies by country. [2]

Sensodyne offers a wide range of products, including:

• Original

• Fresh Mint

• Repair & Protect

• Rapid Relief

• Clinical Repair

• Pronamel

• Complete Protection

• Deep Clean

• Extra Whitening

• Sensitivity & Gum

• Sensitivity & Enamel

• Clinical White

In addition to toothpaste, the brand also markets:

• Mouthwash

• Soft toothbrushes

• Dental floss (in some regions)

Sensodyne is intended primarily for:

• Adults with sensitive teeth

• Individuals experiencing enamel erosion

• People with gum recession

• Patients after professional teeth whitening

• Individuals with exposed tooth roots

• Anyone seeking long-term sensitivity protection

Sensodyne has invested in dental research for more than six decades. Many formulations have undergone laboratory and clinical testing to evaluate their effectiveness in relieving dentin hypersensitivity. The brand also collaborates with dental professionals and supports oral health education initiatives in various countries. [2]

Sensodyne is positioned as a premium oral care brand focused on clinically proven sensitivity relief rather than general cosmetic benefits. Its marketing emphasizes:

• Science-backed formulations

• Professional recommendations

• Long-lasting protection with twice-daily brushing

• Everyday comfort when eating and drinking hot or cold foods

Sensodyne products are sold throughout:

• North America

• Europe

• Asia

• Australia

• Latin America

• Africa

• Middle East

In Japan, the brand is marketed under the name Shumitect. [1]

Sensodyne is owned by Haleon plc, one of the world’s largest consumer healthcare companies. Haleon’s portfolio also includes brands such as:

• Panadol

• Voltaren

• Centrum

• Advil

• Parodontax

• Otrivin

Sensodyne is considered one of Haleon’s flagship global brands and a major contributor to its oral health business. [1]

Sensodyne is widely recognized as one of the leading toothpaste brands for sensitive teeth. The company states that it is the No. 1 dentist-recommended toothpaste brand for sensitive teeth in many markets, based on country-specific survey data. Such claims can vary by region depending on the methodology and date of the surveys. [2]

• 1961 – Sensodyne Original launched with strontium chloride.

• 1980 – Introduction of Sensodyne F, using potassium nitrate technology.

• 2000 – Block Drug acquired by SmithKline Beecham.

• 2001 – Brand becomes part of GlaxoSmithKline following the GSK merger.

• 2006 onward – Expansion into advanced formulations such as Repair & Protect and Rapid Relief.

• 2022 – Sensodyne becomes part of Haleon after GSK’s consumer healthcare spin-off. [1]

1. Sensodyne

2. Why Sensodyne? How Our Toothpaste Can Help