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CompanyScience Behind the Brands
From Pert: Do You Wash and Go?

How Many Years Did P&G Invest So You Could Wash and Go?
How Two-in-One Technology Works
Technology Behind Wash and Go
Innovation in Hair Care
P&G Brands Storm the Market

How Many Years Did P&G Invest So You Could Wash and Go?

Shampoo and conditioner in one was P&G's response to a direct consumer need. Consumers had enough to do in the morning without the extra step of conditioning, and then waiting for it to set. Tired of the time-consuming conditioning process, they said they wanted to just "wash and go."

The request was simple enough, but the development of the two-in-one technology would take more than three years. While it takes you minutes to use Pert Plus, the process behind the act is complex. Here's what happens when you use your shampoo and conditioner in one:
  • While conditioning agents and shampoo surfactants are combined in the bottle, the conditioning agents remain suspended through all conditions encountered during product distribution and use.
  • When you lather, the conditioning agents are still suspended. You're only getting the shampoo during this time.
  • When you rinse, the conditioning agents are released, depositing a conditioning ingredient on your hair that makes it feel soft, like conventional conditioners do. This ingredient is removed during later shampoos to prevent buildup.
The delivery of shampoo and conditioner in one is part of a long line of P&G firsts in the history of hair care. Other landmark innovations included Drene in the 1930s—the first synthetic (non-soap) shampoo that gave consumers superior cleaning, lather, and rinsability. Later, P&G would introduce Head & Shoulders®, which offered consumers highly acceptable cleaning, fragrance, and lather in an antidandruff shampoo. In the 1970s, P&G introduced the first rinse-off conditioning product. What will the millennium bring to hair care? We're working on some surprises.

How Two-in-One Technology Works
Today's two-in-one products are effective because modern conditioning agents are compatible with shampoo surfactants. The conditioning agents are suspended apart from the surfactants while in the bottle.

Step 1. The shampoo surfactants clean the hair as they do with a conventional shampoo. The conditioning agents are suspended during the lathering process in the lather.

Step 2. The conditioning agents are then released from suspension upon rinsing, while the oil and dirt are carried away.

Step 3. Like conventional conditioners, two-in-ones form a lubricious film on the hair that makes the hair feel soft and combs easily.


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Technology Behind Wash and Go
Developing the first complete shampoo-and-conditioner-in-one required a focused effort over a period of more than three years. P&G scientists overcame three technological challenges before perfecting a formula that met the combined needs of cleaning, lathering and rinsing as well as conditioning hair in one convenient, cost-effective step. The first challenge was to develop an active ingredient that could be deposited on the hair each time the product was used, but would also be removed during the subsequent shampoo treatment to prevent buildup. P&G scientists jumped this first hurdle with the discovery that a high-molecular-weight polydimethylsiloxane blend in an anionic shampoo base provided superior hair softness and shine without losing the clean hair feel.

Another challenge was to suspend the polydimethylsiloxane blend in the shampoo base so it would remain dispersed in the product under all conditions encountered in distribution and use but, importantly, still release during the rinse process to deposit on the hair. To accomplish this, scientists identified a patented suspension system based on a combination of a natural polymer and a dispersed crystalline material.

The process itself was the third obstacle because polydimethylsiloxane of the desired molecular weight profile is extremely viscous. Additionally, the size, shape and number of glycol distearate crystals in the shampoo used to deliver the pearlescent shampoo appearance can also affect performance and stability. Due to the high viscosity of this material, special equipment and processing steps were designed to consistently disperse and deliver particles of target size and distribution. Mixing and heat exchange conditions were carefully optimized to control crystallization and ensure uniform performance.

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Innovation in Hair Care
Procter & Gamble's development of a complete shampoo-and-conditioner-in-one is perhaps the most significant landmark in the history of hair care. The introduction of Pert Plus in 1986 has added to P&G's long history of leading this category in new advances.

P&G scientists and researchers have also delivered many other innovations in the past 60 years that have greatly impacted the worldwide hair care category. P&G's innovations in hair care technology began in the 1930s with the introduction of Drene, the first synthetic (non-soap) shampoo for superior cleaning, lather and rinsability of hair. Later, P&G developed its Head & Shoulders brand, which offered consumers highly acceptable cleaning, fragrance and lather in an anti-dandruff shampoo. In the 1970s, P&G introduced a rinse-off conditioning product for the first time.

Although consumers appreciated the benefits of the shampoos and conditioners on the market, P&G's ongoing consumer research program clearly showed that hair cleaning and conditioning needs were not fully met. What consumers really wanted was a product that would wash and condition in just one easy step - so they could just "wash and go."

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P&G Brands Storm the Market
Following the refinement of the two-in-one technology in 1986, P&G launched Pert Plus with outstanding results. The two-in-one technology was used in the 1990s, along with other technologies, to relaunch and expand the Pantene brand, beginning in the Far East. Pantene is now the best-selling hair care brand in the world.

Today, the two-in-one technology continues to impact the global hair care category, and contributes significantly to total Company sales and profits.



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