Oem Kaolin Rose Clay Benefits For Face
OEM Kaolin Rose Clay for Face Care Applications
Product Overview
Kaolin rose clay is a naturally occurring aluminum silicate mineral that exhibits a soft pink hue due to trace iron oxide content. In its OEM form, the clay is milled to controlled particle size distributions, dried to low moisture levels, and supplied with a certificate of analysis for each lot. This grade is intended for incorporation into facial cleansers, masks, and moisturizers where consistent performance and traceability are required.
Chemical and Physical Characteristics
| Property | Typical Value | Test Method |
|---|---|---|
| Particle size D50 | 4–6 µm | Laser diffraction |
| pH (10% slurry) | 6.5–7.5 | Electrode |
| Loss on drying (105 °C, 2 h) | ≤0.5 % | Gravimetric |
| Specific surface area | 10–12 m²/g | BET |
| Bulk density (loose) | 0.45–0.55 g/cm³ | ASTM D7481 |
| Cation exchange capacity | 5–7 meq/100 g | NH₄OAc extraction |
Functional Benefits in Formulations
The fine particle size provides a gentle physical exfoliation that removes surface debris without causing micro‑tears, making the clay suitable for daily‑use cleansers. Its high specific surface area and cation exchange capacity enable adsorption of excess sebum and impurities, delivering a mattifying effect that persists for several hours after application. The mild alkalinity of the slurry helps stabilize pH in emulsions containing acidic actives, reducing the need for additional buffering agents.
Because the clay is chemically inert toward most surfactants, preservatives, and fragrance oils, it does not interfere with viscosity builders or emulsion stability. Compatibility testing shows no significant change in rheology when incorporated at levels up to 15 wt % in oil‑in‑water creams.
Applications in Cosmetic Manufacturing
Manufacturers select OEM kaolin rose clay for products that claim oil‑control, pore‑refining, or brightening benefits. The natural pink color allows formulators to achieve a visually appealing hue without synthetic dyes, supporting clean‑label claims. In mask formulations, the clay’s swelling capacity creates a pleasant, non‑cracking film that facilitates easy removal with water.
Supply chains benefit from the clay’s low hygroscopicity; it maintains flow properties under typical warehouse humidity (40–60 % RH), reducing the risk of clogging in pneumatic conveying systems during bulk handling.
Quality Control and Testing
Each batch undergoes a full suite of tests before release, including particle size distribution by laser diffraction, pH measurement, loss on drying, and ICP‑OES analysis for trace metals. Results are recorded against internal specifications that align with ISO 16128‑2 natural origin criteria. A certificate of analysis accompanies every shipment, providing lot‑specific data for regulatory documentation.
Stability studies are performed on representative formulations at 40 °C/75 % RH for 12 weeks, monitoring viscosity, phase separation, and color shift. No significant deviations have been observed when the clay is used within the recommended concentration range.
Customization Options
- Particle size grading: coarse (D50 ≈ 12 µm) for scrub grades, ultra‑fine (D50 ≈ 2 µm) for silky feel.
- Surface treatment: silanization or stearic acid coating to modify hydrophobicity for oil‑based systems.
- Moisture content adjustment: low‑moisture (<0.2 %) for powder blends, higher moisture for paste premixes.
- Packaging: multi‑layer polyethylene bags with inner foil liner, available in 5 kg, 25 kg, and 600 kg bulk containers.
Packaging and Storage
The clay is packed in moisture‑barrier bags that protect against ambient humidity and contamination. Each bag is sealed and placed inside a corrugated carton with palletization suitable for forklift handling. Storage recommendations: keep in a dry, ventilated area below 30 °C; avoid direct sunlight to prevent any potential color fading over extended periods.
Supply and Lead Time
Minimum order quantity is 25 kg for standard grades; smaller trial quantities can be arranged upon request. Typical production lead time is 3–4 weeks after receipt of a signed purchase order, subject to raw material availability. Expedited options are available for critical project timelines.
Frequently Asked Questions
Can the particle size be customized for specific application needs?
Yes, we offer custom milling to achieve target D50 values ranging from 2 µm to 15 µm, with corresponding adjustments to specific surface area and flow properties.
What information is required before quotation?
Please provide the intended use case, desired particle size range, required moisture level, packaging preference, and estimated annual volume.
Is the clay compliant with cosmetic ingredient regulations?
The material is sourced from deposits that meet cosmetic‑grade purity standards and is supplied with a certificate of analysis supporting compliance with ISO 16128‑2 and EU CosIng listings.
How is quality consistency ensured between batches?
Each lot is tested against a master control chart for particle size, pH, and loss on drying. Any deviation beyond ±10 % triggers a hold and investigation before release.
What packaging options are available for export?
Standard export packaging includes 25 kg multi‑layer bags with inner foil liners, stacked on pallets and stretch‑wrapped. Custom pallet configurations or bulk container loading can be arranged.
Next Steps
To request a technical data sheet, sample, or formal quotation, please contact our technical sales team using the link below.
Contact Us for OEM Kaolin Rose Clay