Hectorite is a naturally occurring smectite clay mineral belonging to the layered phyllosilicate group. It is structurally related to montmorillonite and is characterized by its hydration, swelling, thickening and rheology-modifying properties.
Hectorite is particularly valuable in cosmetic and personal-care formulations where controlled viscosity, suspension and formulation stability are required. When properly dispersed in water, Hectorite can form a structured colloidal system that contributes to viscosity and helps suspend particulate ingredients.
Compared with some other natural clays, Hectorite is valued for its ability to provide efficient rheological modification at relatively low concentrations in suitable systems. Its performance depends on mineral composition, particle size, purity, processing and the presence of electrolytes or other formulation ingredients.
Suitable cosmetic grades of Hectorite can be used in skin-care products, face masks, gels, creams, lotions, cleansers, makeup and other specialty personal-care formulations.
Hectorite is a magnesium-rich smectite clay mineral. It belongs to the same broad smectite family as Montmorillonite but has a different mineral composition.
It can provide:
CAS No.: 12173-47-6
INCI Name: Hectorite
Chemical Class: Smectite Clay
Important: Hectorite is a mineral material rather than a single synthetic compound with one universally fixed stoichiometric composition. Commercial grades can differ in mineral purity and composition.
Hectorite is a magnesium-rich trioctahedral smectite. It has a layered silicate structure in which magnesium is an important structural element.
The composition can vary according to:
Because it is a naturally occurring mineral, the commercial material should be characterized using the specifications applicable to the selected grade.
One of the important properties of Hectorite is its ability to interact with water.
When dispersed and properly hydrated, Hectorite particles can form a structured colloidal network. This can contribute to:
Hydration and dispersion conditions can significantly affect the final rheological performance.
Hectorite can function as a rheology modifier in suitable cosmetic formulations.
It can help control:
This makes it useful in formulations where a structured but smooth consistency is desired.
Properly dispersed Hectorite can create a three-dimensional clay network that helps suspend selected insoluble ingredients.
Potentially suspended materials include:
The suspension performance depends on the Hectorite grade and the complete formulation.
Suitable cosmetic grades may be used in:
It can contribute to viscosity, texture and suspension.
Hectorite can be used in selected makeup systems where rheology modification and suspension are required.
Potential applications include:
It can help maintain a uniform distribution of pigments and particulate ingredients.
Hectorite can contribute to structured aqueous and water-containing gel systems.
Potential benefits include:
The appropriate grade and processing method should be selected according to the desired gel characteristics.
Hectorite can contribute to the physical stability of selected emulsions by modifying the rheology of the continuous phase.
It may be combined with:
Compatibility testing is recommended because electrolytes and other formulation components can influence clay hydration and viscosity.
When using Hectorite, formulators should evaluate:
Hectorite should be properly dispersed to achieve consistent rheological performance.
Poor dispersion can cause:
The recommended processing conditions should be based on the technical specification of the selected grade.
Hectorite can be considered for suitable:
Hectorite is a naturally occurring magnesium-rich smectite clay mineral with hydration, swelling and rheology-modifying properties.
The commonly referenced CAS number is 12173-47-6.
The INCI name is Hectorite.
Hectorite is used primarily as a thickener, rheology modifier, suspending agent and stabilizer in suitable cosmetic formulations.
No. Hectorite is generally insoluble in water but hydrates, swells and forms structured dispersions.
Yes. Properly dispersed and hydrated Hectorite can contribute significant viscosity and rheological structure.
Yes. Suitable grades can help suspend pigments and other insoluble particulate ingredients.
Both are smectite clay minerals, but Hectorite is a magnesium-rich trioctahedral smectite, whereas Montmorillonite is generally an aluminium-rich dioctahedral smectite with different mineral chemistry and performance characteristics.
Hectorite is a specific smectite mineral, while Bentonite is a natural clay material predominantly composed of smectite minerals, often including Montmorillonite.
Yes. Suitable cosmetic grades may be used in foundations, concealers, cream makeup and other formulations requiring suspension and rheology control.
| Parameter | Specification |
|---|---|
| Appearance | White to off-white powder |