The wonderful world of hair-dye
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The Science Behind Hair Dye
Changes to the Hair
Ingredients of Hair Dye
Hair Bleach
Temporary vs. Permanent
pH of Hair Dye
Physical or Chemical Change?
Fun Facts
Works Cited
pH of Hair Dye
Permanent colors have a pH of around 8-9. (Basic)
Temporary colors have a pH of around 7-9 (Neutral)
Hair bleach usually has a pH of around 8 or 9 as well. (Basic)
5.