Chemistry & ProductsQuestion 76 of 484
What is the primary cleansing ingredient in shampoo?
a.Preservative
b.Emulsifier
c.Humectant
d.Surfactant (detergent)
Explanation
Shampoos clean using surfactants (surface-active agents). One end of the molecule attracts water (hydrophilic) and the other attracts oil and dirt (lipophilic), allowing soils to be rinsed away.
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