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History of Head & Shoulders

1837-1889The idea for Head & Shoulders dates back to about 1950. At that time, Procter & Gamble research determined that consumers were not completely satisfied with the then-existing anti-dandruff shampoos. What we had to do was find a new and effective ingredient against dandruff. After ten years of searching, P&G scientists found one that really worked! Pyrithione zinc.

In the 1950s, Procter & Gamble began screening tests to identify dandruff control agents. Over two thousand such ingredients were evaluated. Basically each compound was screened for three properties:
  • It must retain its activity in the presence of sebum (scalp oils).
  • It must remain on the scalp after shampooing.
  • It must be safe for normal usage in the home.
In 1960, we had a product and a code name, then came hundreds of tests on the product. For instance, we did safety tests to find out whether it would really work in the home. (It did.) Could people see the results? (They did.) How would it hold up during shipping? How would it withstand heat and cold? We found the answers to all these questions and more.

By the spring of 1961, we were ready to give our shampoo a "real" name and start work on the packaging, displays, advertising, and marketing programs that would introduce it to the public.

In November 1961, the code name became a brand name: Head & Shoulders. We were then ready for the most crucial phase: Marketing the product in a few selected areas. Why didn't we make it available everywhere in the country? At Procter & Gamble, no product is sold nationwide until it has first proven itself successful in limited areas.

Active Ingredients
In all the years of our testing, no ingredient has ever performed better than Pyrithione zinc, the dandruff control agent in Head & Shoulders. Pyrithione zinc comprises approximately 1% of the Head & Shoulders formula.

Pyrithione zinc is able to inhibit the growth of the microorganisms on the scalp which are believed to play a significant role in the cause of dandruff. This ingredient actually remains on the scalp after shampooing, thus continuing to fight the causes of dandruff. Our tests show that regular use of Head & Shoulders is required to keep dandruff flaking under control.

Basically, Pyrithione zinc is an antimicrobial agent that works especially well on the microbes believed to cause dandruff. Furthermore, the active ingredient goes straight to the scalp, where it's needed, and doesn't affect the hair. Pyrithione zinc is the official chemical name for the compound, but the structural name is zinc 2-pyridinethiol-1-oxide. The empirical formula is C10H8N2O2S2Zn and it has a molecular weight of 317.92.
Brand History
History of Crest
History of Head & Shoulders
History of Ivory
History of Max Factor
History of Noxell
History of Old Spice
History of Tampax
Past Soap Products


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