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Questions and Answers
What is the pH range of sodium hydroxide relaxers?
What is the pH range of sodium hydroxide relaxers?
11.5-14
Relaxer strengths for ammonium thioglycolate are categorized as all of the following, EXCEPT:
Relaxer strengths for ammonium thioglycolate are categorized as all of the following, EXCEPT:
- Regular
- Heavy (correct)
- Super
- Mild
What effect does ammonium thioglycolate have on hair?
What effect does ammonium thioglycolate have on hair?
Softens and swells
Sodium hydroxide relaxers are generally used on which type of hair?
Sodium hydroxide relaxers are generally used on which type of hair?
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Under what condition should a salon professional never use an ammonium thioglycolate product?
Under what condition should a salon professional never use an ammonium thioglycolate product?
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Study Notes
Relaxers Overview
- Sodium hydroxide relaxers have a pH range of 11.5-14, indicating high alkalinity necessary for hair relaxation.
- Ammonium thioglycolate relaxers are categorized into three strengths: mild, regular, and super, but not "heavy."
Ammonium Thioglycolate
- Acts as a chemical reducing agent, enabling hair to soften and swell, facilitating the relaxing process.
Application Guidelines
- Sodium hydroxide relaxers are particularly effective on tightly curled hair types, making them suitable for coarse textures.
- Professionals must abstain from using ammonium thioglycolate on hair that has previously undergone treatment with sodium hydroxide relaxers, as this can cause damage or undesirable results.
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