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Moumoujus

BASIC VIOLET 14.

Avoid CAS 632-99-5 / HAIR DYEING

A synthetic triarylmethane dye traditionally utilized in medical and histological settings for its potent antimicrobial properties. While historically used in hair colorants, its primary modern application remains in specialized topical antiseptic solutions for treating fungal and bacterial skin infections.

Summary

colorant antiseptic antifungal

Science

Mechanism of Action

As a cationic fluorochrome, Basic Violet 14 interacts with the negatively charged surface components of fungal and bacterial cell membranes. This binding disrupts cellular integrity and interferes with nuclear function, effectively neutralizing pathogens upon contact.

Research

Clinical Evidence

Medium confidence
Effective range 1–5%
Optimal

2%

Key findings

  1. 01 Demonstrated efficacy as a topical antiseptic and antifungal agent for pyoderma, dermatitis, and eczema when used in concentrations between 2-5%.
  2. 02 Proven utility as a dermal drying agent and first aid antiseptic in concentrations below 1% for postoperative nail procedures.

Transparency

Dusting Analysis

Commonly dusted
Min. effective
0.1%
Red flag below
1%

Due to its intense pigment and regulatory restrictions, it is often included at negligible levels purely for color. However, clinical antimicrobial benefits are only observed at levels significantly higher than what is typically allowed in standard cosmetic formulations.

The Formula

Formulation

Solubility
Both
Optimal pH 2 – 5
0 7 14

Stability

Highly stable in acidic environments; however, the molecule is extremely sensitive to pH levels above 5.0, which can lead to precipitation and loss of color (decolorization).

Conflicts

  • Strong oxidizing agents
  • Strong reducing agents
  • Strong alkalis (e.g., Sodium Hydroxide)
  • Isocyanates
  • Peroxides
  • Phenols

Safety

Safety Profile

CIR Status
Insufficient data
Max tested
0.3%
Pregnancy
Caution
Sensitization risk Moderate

Delisted by the EU in 2008 for hair dye use due to potential carcinogenicity and a lack of safety data. It is restricted from use in products intended for mucous membranes.

Your Skin

Skin Compatibility

No Normal
No Dry
No Oily
No Sensitive
Irritancy Moderate
Comedogenicity Low

Our Assessment

Verdict

Avoid

While effective as a medical antiseptic, its regulatory instability and potential safety risks make it unsuitable for modern precision skincare.

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