Description

HC Blue 15 is a synthetic hair dye pigment commonly used in professional hair coloring products to achieve vibrant blue shades. Known for its intense and deep blue hue, it is often used in formulations for fashion colors, highlights, or to neutralize unwanted warm tones in darker hair. Chemically, HC Blue 15 is a basic dye that can bind effectively to the hair shaft, offering strong color payoff and good color retention. It is usually combined with other dyes to create custom shades, from pastel blues to rich navy tones. In addition to its aesthetic appeal, formulations containing HC Blue 15 are designed to be safe for topical use on hair, though proper patch testing and adherence to manufacturer instructions are recommended to avoid allergic reactions. Its versatility and vibrancy make it a popular choice in both salon-grade and at-home hair coloring products.

Chemical Structure of HC Blue 15

Appearance of HC Blue 15

Uses

1. Primary Blue Shade Creation:

Packing

Export Worthy packing 5 Kg Drum, 25 Kg Drum, 50 Kg Drum.

Storage Conditions

Store in cool and dry place at room temperature, protect from direct sunlight.

Molecular Formula

CAS No.

CI No.

IUPAC Name

Synonyms

Molecular Weight

Appearance

Solubility

Dye Content (Spectrophotometry)

C₃₇H₂₇N₃Na₂O₉S₃

74578‑10‑2

74160

Trisodium8-amino-5-[[4-(diethylamino)phenyl]-(4-sulfophenyl)methylidene]-7-hydroxy-4-methyl-1-naphthalenesulfonate

Acid Blue 15

804.77 g/mol

Dark blue to violet powder or solid dye.

98%

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HC Blue 15 is the cornerstone for achieving true blue hair tones. It is used in formulations where a pure, vibrant blue is desired, such as fashion colors or temporary color sprays. Alone, it produces deep, intense blue shades that can range from electric or cobalt blue to dark navy, depending on concentration and hair base color.

2. Color Correction and Toner Applications:

• HC Blue 15 is frequently used to neutralize warm, orange, or brassy tones in hair. For example, after bleaching, hair often has yellow or orange undertones. When combined with yellow-orange neutralizers or violet-based toners, HC Blue 15 helps achieve cooler, ashier shades.

• In professional salon settings, it is a component of ash-blonde or cool brown formulations, reducing unwanted red or yellow reflections in the hair.

3. Blending with Other Dyes:

HC Blue 15 is highly versatile and is often blended with other HC dyes (like reds, purples, or greens) to create a spectrum of custom shades:

• Mixed with HC Red dyes → Produces purples, violets, or magentas.

• Mixed with HC Green dyes → Can yield teal or turquoise shades.
  This makes it a staple for fashion-oriented and creative hair coloring.

Soluble in water

4. Permanent, Semi-Permanent, and Temporary Dyes:

HC Blue 15 is used in various types of hair dye formulations:

• Permanent dyes: Incorporated into oxidative dye systems where it reacts with developers to form long-lasting color inside the hair shaft.

• Semi-permanent dyes: Used in deposit-only formulations that coat the hair cuticle, providing vibrant color without altering natural pigment permanently.

• Temporary dyes: In products like hair chalks, sprays, or color rinses, HC Blue 15 offers striking but short-lived blue tones.

5. Specialized Hair Treatments:

Beyond standard coloring, HC Blue 15 is sometimes used in:

• Highlighting products to create contrasting streaks of blue.

• Hair mascaras or root touch-ups to mask gray or achieve fantasy-colored roots.

• Color refreshers or shampoos that maintain blue tones between full coloring sessions.

6. Cosmetic and Safety Advantages:

HC Blue 15 is favored because it is relatively stable in hair formulations, resistant to fading under normal light exposure, and compatible with common cosmetic excipients. Its chemical stability ensures that hair maintains vibrancy for a reasonable duration, especially in semi-permanent and temporary formulations.