| A | B |
| Acid | An aques(water-based) solution having a pH sess than 7.0 on the pH scale. |
| Activator | Used to quicken the action or progress of a chemical. |
| Ammonia | A colorless pungent gas composed of hydrogen and nitrogen. |
| Bleeding | Seepage of tint/lightener |
| Blending | A merging of one tint or tone with another. |
| Buildup | Repeated coatings on athe hair shaft. |
| Chemical Change | Alteration in the chemical composition of a substance. |
| Color Remover | A Product designed to remove artificial pigment from the hair. |
| Consultation | Verbal communication with a client to determine desired result. |
| Degree | Term used to describe various units of measurement. |
| Dense | Thick, compact, or crowded. |
| Depth | The lightness or darkness of a specific hair color. |
| Formulas | Mixtures of two or more ingredients. |
| Henna | A plant-extracted coloring that produces bright shades of red. |
| Hard Water | Water that contains minerals and metallic salts as impurities. |