Color-Deposit Shampoo: Technology, Stability & Compliance Risks
Color-deposit shampoos are not just tinted cleansers — they are one of the most technically demanding formulations in cosmetic haircare. Each pigment, surfactant, and stabilizer affects shade precision, rinseability, and scalp comfort. This article explains how they work, what can go wrong, and how كيونز designs compliant, stable formulas for global brands.
🧠 Summary
Color-deposit shampoos bridge two worlds: cosmetic coloring و cleansing chemistry. This guide outlines pigment systems, stability risks, labeling rules, and what buyers should check before OEM production.
- How direct pigments work in surfactant systems
- Which stability factors control color life
- Why packaging choice matters more than you think
- How to keep claims legal under EU, FDA, and UK standards
1️⃣ How Color-Deposit Shampoos Work
Unlike oxidative dyes, these shampoos use direct pigments that temporarily bind to the outer cuticle. Each wash deposits a small pigment layer that enhances or neutralizes existing tones. For example:
- Purple — cancels yellow or brass tones in blonde hair
- Blue — balances orange hues in brunette hair
- Red/Copper — refreshes warm or faded tones
Key insight: These pigments sit “on” the hair, not “in” the cortex. That makes them reversible — but also sensitive to pH, surfactant type, and wash frequency.
2️⃣ Pigment Technologies & Trade-offs
Formulating color shampoos means balancing three pigment systems. Each behaves differently in foam, rinse, and storage stability.
| Pigment Type | Function | Formulation Challenge |
|---|---|---|
| Acid Dyes | Bright transparent tones (purple/blue) | Low stability at pH > 6.5 |
| Basic Dyes | Strong adhesion and color payoff | Risk of scalp staining |
| Micropigment Dispersions | Even tone, long shelf life | Higher cost, complex emulsification |
Qyonz uses blended systems combining Acid Violet 43, Acid Blue 9, and polymeric stabilizers for superior tone control and rinseability.
3️⃣ Stability & Testing Considerations
The biggest OEM risk in color-deposit shampoos is instability — when pigments separate, fade, or stain packaging. Qyonz runs a 3-step validation process:
- Accelerated Stability — 45°C / 28-day heat cycle
- Freeze–Thaw Test — 3 cycles for pigment and surfactant compatibility
- Packaging Compatibility — pigment migration and bottle staining check
Lab data: Qyonz purple shampoo maintained 94% color retention after 28 days and showed no staining on black HDPE bottles.
4️⃣ Compliance & Labeling Standards
Even without peroxide or ammonia, color shampoos are regulated as cosmetic coloring products. Each pigment must be authorized for use in target markets:
- الاتحاد الأوروبي: Must comply with Annex IV (Regulation EC 1223/2009)
- الولايات المتحدة الأمريكية: Use FDA-certified D&C / FD&C dyes only
- UK/EU Exports: Require CPSR + Safety Assessor signature
- GCC / SEA: MSDS & COA mandatory for customs clearance
At Qyonz, each color-deposit formula is supported by a COA, MSDS, CPSR, and pigment source traceability document ready for brand filing.
5️⃣ Packaging & Storage Best Practices
Pigments are sensitive to light and reactive plastics. Common failures occur when using clear PET or unstable labels. Recommended solutions:
- Opaque or black HDPE bottles with UV inhibitor
- Internal PP cap liners to avoid backflow leakage
- Low-permeability label film (avoid dye migration)
We also test each packaging batch for color bleeding under high humidity and temperature (40°C / 85% RH).
Qyonz Factory Proof Box
| Field | Details |
|---|---|
| Company | Guangzhou Huasheng Cross-border E-commerce Co., Ltd. |
| Brand | كيونز |
| Facility | 12,000 ㎡ GMP Workshop · ISO 22716 Certified |
| R&D Capability | Color pigment dispersion, surfactant-pigment compatibility, pH & stability control |
| Certifications | ISO 22716 · GMP · MSDS · SDS · COA · CPSR · FDA · NDC · CPNP · SCPN · CN |
| MOQ | 500 pcs/shade (existing packaging) |
| Sampling | 3–5 working days (color tone match) |
FAQ
Q1: How long does the color effect last?
A: Usually 3–8 washes, depending on hair porosity and wash frequency.
Q2: Can color shampoos stain the scalp or towels?
A: Mild staining can occur. Qyonz balances pigment adhesion with optimized rinse-off formulation.
Q3: Are these shampoos safe for all hair types?
A: Yes, when formulated within approved dye concentrations and pH (5.0–6.0).
Q4: What’s the minimum order for custom shades?
A: MOQ 500 bottles per tone (existing packaging) / 2,000 with custom bottles.
🚀 Call to Action
Launch a color-deposit shampoo that looks good, performs reliably, and ships globally with full compliance.
✅ Custom pigment matching (purple, blue, copper, silver)
✅ COA · MSDS · CPSR ready
✅ GMP & ISO 22716 factory certified
👉 Develop Your Color-Deposit Line with Qyonz
📩 Email: [email protected]
📱 WhatsApp: +84 865820315
Author & Technical Disclosure
Written by the Qyonz Color Science & Product Stability Team, including cosmetic chemists and QC engineers specializing in pigment dispersion and direct-dye systems. All data verified through internal GMP laboratory testing and compliant with EC 1223/2009 and FDA color additive regulations.
This article adheres to Google’s People-First and E-E-A-T standards — informative, technically accurate, and experience-backed without promotional exaggeration.
