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COLOR THEORY

→ COLOR & SHINE
→ ADDITIVE AND SUBTRACTIVE COLOR MIXING
→ NATURAL HAIR COLOR
→ PERCEPTION OF HAIR COLOR
→ HISTORY OF HAIR COLOR
→ DYES AND PIGMENT
→ OXIDATIVE DYES
→ DIRECT DYES
→ LIGHTENERS & DE-COLORIZER
→ PERMANENT COLOR
→ SEMI & DEMI PERMANENT COLOR
→ GOLDWELL COLOR CIRCLE
→ GREY COVERAGE

Read more about other Hair Science topics here:

→ INTRODUCTION
→ CHAPTER CHEMICAL BACKGROUND
→ CHAPTER HAIR FACTS

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