Treating hair samples in solutions of varying pH
The hair sample treated in what pH was the most resilient after treatment? (It was mostlikely pH 6.0.)
The hair sample treated in what pH was the least resilient after treatment? (It was most likely pH 12.0.)
Based on test results, what seems to be the best pH range for hair? (It is most likely pH 6.0-8.0.)

Describe further research that would better determine the optimal pH range for hair care products. (Answers will vary.)
How would you answer the central question of the lesson now: How does understanding the chemistry of hair care, including the role of pH, help in the development of better hair care products?
Part III: Online exploration of hair care
What are some factors that impact the condition of hair? (Examples include length, shampoo, and/or conditioner used.)
What could be causing your hair to be limp?

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