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Definition
| Contain small, uncolored dyes that combine with hydrogen peroxide to form larger, permanent dye molecules within the cortex |
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| Also known as free-form technique; painting a lightener (usually a powdered off-the-scalp lightener) directly onto clean, styled hair. |
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| Predominant tone of a color |
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Definition
| Equalize porosity and deposit color in one application to provide a uniform contributing pigment on prelightened hair |
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| Also known as undertone; the varying degrees of warmth exposed during a permanent color or lightening process |
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Definition
| Also known as no-lift deposit-only color; formulated to deposit but not lift (lighten) natural hair color |
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| Also known as oxidizing agents or catalysts; when mixed with an oxidation haircolor, supplies the necessary oxygen gas to develop color molecules and create a change in hair color |
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Term
| Double-process application |
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Definition
| Also known as two-step coloring; a coloring technique requiring two separate procedures in which the hair is prelightened before the depositing color is applied to the hair |
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| Highlighting technique that involves coloring selected stands of hair by slicing or weaving out sections, placing them on foil or plastic wrap, applying lightener or permanent haircolor, and then sealing them in the foil or plastic wrap |
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Definition
| A nonammonia color that adds shine and tone to the hair |
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Definition
| The natural color of hair |
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Definition
| Professional, salon industry term referring to artificial haircolor products and services |
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Definition
| Coloring some of the hair strands lighter than the natural color to add a variety of lighter shades and the illusion of depth |
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Definition
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Definition
| Chemical compounds that lighten hair by dispersing, dissolving, and decolorizing the natural hair pigment |
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Definition
| Visible line separating colored hair from new growth |
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Definition
| Also known as gradual haircolors; haircolors containing metal salts that change hair color gradually by progressive buildup and exposure to air creating a dull, metallic appearance |
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Definition
| Also known as vegetable haircolors; colors, such as hanna, obtained from the leaves or bark of plants |
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Definition
| Part of hair shaft between the scalp and the hair that has that has been previously colored |
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Definition
| Also known as a predisposition test; test required by the Federal Food, Drug, and Cosmetic Act for identifying a possible allergy in a client |
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Definition
| Lighten and deposit color at the same time and in a single process because they are more alkaline than no-left deposit-only colors and are usually mixed with a higher-volume developer |
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Definition
| First step of double-process haircoloring, used to lift or lighten the natural pigment before the application of toner |
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Definition
| Hair type that is difficult for moisture or chemicals to penetrate, and thus requires a longer processing time |
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Definition
| Also known as low lighting; technique of coloring strands of hair darker than the natural color |
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Definition
| No-lift deposit-only nonoxidation haircolor that is not mixed with peroxide and is formulated to last through several shampoos |
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Term
| Single-process haircoloring |
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Definition
| Process that lightens and deposits color in the hair in a single application |
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Definition
| Combination of equal parts of a prepared permanent color mixture and shampoo used the last five minutes and worked through the hair to refresh the ends |
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Definition
| Nonpermanent color whose large pigment molecules prevent penetration of the cuticle layer, allowing only a coating action that may be removed by shampooing |
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Definition
| Also known as hue; the balance of color |
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Definition
| Semipermanent, demipermanent, and permanent haircolor products that are used primarily on prelightened hair to achieve pale and delicate colors |
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Definition
| Measures the concentration and strength of hydrogen peroxide |
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Definition
| First time the hair is colored |
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Definition
| Coloring technique that involves taking narrow 1/8 inch (0.3 centimeters) section of hair by making a straight part at the scalp, positioning the hair over the foil, and applying lightener or color |
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Term
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Definition
| Coloring technique in which selected strands are picked up from a narrow section of hair with a zigzag motion of the comb, and lightener or color is applied only to these strands |
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