Classification of Hair Color
Hair coloring is one of the most popular services in the Cosmetology trade. It involves applying special cosmetic products to change the natural color of the hair. Hair colors are classified according to how long they last on the hair and how deeply they penetrate the hair shaft. Understanding the classification of hair color helps cosmetologists select the right product for different clients and hair types.
Hair color products are mainly classified into three categories:
- Temporary Hair Color
- Semi-Permanent Hair Color
- Permanent Hair Color
Each type of hair color has different characteristics, methods of application, and durability.
1. Temporary Hair Color
Temporary hair color is a type of hair coloring product that coats the outer surface of the hair shaft without penetrating the inner structure of the hair. Because it does not enter the hair cortex, it usually washes out easily after one or two shampoos.
Temporary hair color is often used for special occasions, fashion styling, or short-term color experiments. It is available in different forms such as sprays, gels, rinses, and colored mousses.
Characteristics of Temporary Hair Color
- Does not penetrate the hair shaft.
- Lasts until the next shampoo or a few washes.
- Easy to apply and remove.
- Does not contain strong chemicals.
Uses of Temporary Hair Color
- For special events or parties.
- To add shine or enhance natural hair color.
- For creative and fashion hairstyles.
- For short-term color changes.
2. Semi-Permanent Hair Color
Semi-permanent hair color penetrates slightly into the hair shaft but does not alter the natural pigment permanently. It lasts longer than temporary hair color and gradually fades after several washes, usually around 6 to 12 shampoos.
This type of hair color does not usually contain ammonia and uses mild coloring agents. Semi-permanent hair color is commonly used to enhance natural hair color, add tone, or blend small amounts of grey hair.
Characteristics of Semi-Permanent Hair Color
- Lasts longer than temporary hair color.
- Gradually fades after several washes.
- Does not require strong chemical developers.
- Adds shine and depth to the hair.
Uses of Semi-Permanent Hair Color
- Enhancing natural hair color.
- Adding richness and shine.
- Blending small amounts of grey hair.
- Trying a new shade without permanent commitment.
3. Permanent Hair Color
Permanent hair color provides long-lasting results by penetrating deeply into the hair shaft. It usually contains chemicals such as ammonia and hydrogen peroxide that open the hair cuticle and allow the color to enter the cortex of the hair.
Permanent hair color is widely used in salons because it can lighten, darken, or completely change the hair color. It is also the most effective method for covering grey hair.
Characteristics of Permanent Hair Color
- Provides long-lasting color results.
- Penetrates deeply into the hair shaft.
- Contains chemicals such as ammonia and developer.
- Can lighten or darken natural hair color.
Uses of Permanent Hair Color
- Complete grey hair coverage.
- Changing natural hair color permanently.
- Creating highlights and lowlights.
- Producing fashionable and modern hair shades.
Conclusion
Hair color products are classified into temporary, semi-permanent, and permanent types based on their durability and chemical composition. Temporary hair color lasts for a short period, semi-permanent hair color provides moderate longevity, and permanent hair color offers long-lasting results. Understanding these classifications helps cosmetology students choose the appropriate hair color products and perform professional hair coloring services safely and effectively.