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1. First we took some samples out of the shampoo bottles.

2. Place the pH meter into the sample of shampoo and held it there for about a minute or until the reading stayed constant.

you'll get the following results

Exact for Normal Hair- 8.52 (highest)

Vive Smooth Intense- 6.29

Herbal Essences- 6.08

Head and Shoulders- 6.00

Dove Beautifully Clean- 5.48

Garnier Fructis- 3.41 (lowest)

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11y ago
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Q: What is the pH level of head and shoulders shampoo?
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