Questions and Answers
What form do dry peroxides typically come in?
What should be avoided to prevent contamination when using hydrogen peroxide?
What is the primary function of an activator when added to hair products?
Which of the following can result from a hydrogen peroxide volume of 20 or more?
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What is the definition of lighteners in relation to hair treatment?
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What happens if hydrogen peroxide formulations come in contact with metal?
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What is the maximum number of activators typically recommended for on-the-scalp applications?
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Why should the cap of hydrogen peroxide be kept closed securely when not in use?
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What is the primary purpose of hair lighteners?
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Which of the following factors does NOT affect the degree of lightening?
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Which type of lightener is considered 'on-the-scalp'?
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What happens when hydrogen peroxide is mixed with lightener?
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Which of the following is a reason to use hair lighteners?
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Which is NOT a type of hair lightener?
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What should be checked before using a hair lightener?
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What is the final shade of hair possible when lightening from black?
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Study Notes
Dry Peroxides
- Available as tablets or powder, used with liquid hydrogen peroxide to enhance volume.
- Liquid and cream peroxides in various sizes have decreased the reliance on dry peroxides.
Safety Precautions for Using Hydrogen Peroxide
- Clean implements are essential for measurement, usage, and storage to prevent deterioration.
- Avoid measuring hydrogen peroxide directly into another container's lid to prevent oxidation from residues.
- Hydrogen peroxide should not contact metal, which accelerates oxidation and affects color development.
- Inhaling vapors from mixing hydrogen peroxide and hair color is hazardous.
- Volumes of 20 or more can cause skin irritations, chemical burns, and hair damage.
- Keep hydrogen peroxide capped when not in use to maintain strength; exposure to air is detrimental.
Activators
- Activators are powdered persulfate salts added to hair colors and lighteners to enhance chemical action.
- More activators lead to greater lifting power, with a recommendation of up to three for on-the-scalp and four for off-the-scalp applications.
- Activators are also called boosters, protinators, or accelerators.
Understand Hair Lighteners
- Lighteners chemically lighten hair by dispersing, dissolving, and decolorizing melanin through bleach mixture.
Hair Lighteners
- Composed of hydrogen peroxide and other chemicals, typically with a pH around 10.0.
- When hydrogen peroxide is mixed, it releases oxygen, which bleaches the hair’s natural pigment.
- Lightening effectiveness varies based on the natural pigment amount, lightener strength, and duration of application.
- Dark hair can be lightened through several shades: from dark to pale yellow.
- Lighteners are employed for creating blond shades, pre-lightening for toning, brightening existing shades, or selectively lightening areas.
Types of Lighteners
- Three main types: cream, powder, and oil.
- Cream and oil types are suitable for "on-the-scalp" applications, while powder types are not.
Additional Information
- Lighteners target natural color pigment (melanin) and do not remove artificial hair colors; specialized tint or dye removers are recommended for that purpose.
- Avoid using lightening products on sensitive scalps or where there are cuts or abrasions.
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Description
This quiz focuses on the properties and uses of dry peroxides, including their forms and how they interact with liquid hydrogen peroxide. Additionally, it covers essential safety precautions to follow when handling hydrogen peroxide to ensure safe usage and storage.
