Minerals isolated from clay, used as an astringent, binding and absorbent ingredient.
What it is
Clay minerals is, according to CosIng, the name for various minerals isolated from clay. Clay minerals are fine-grained layered silicates, mainly of aluminium and magnesium. CosIng lists them as an astringent, binding, buffering and humectant ingredient.
Where it is used
Found in a small number of products, such as masks and cleansers.
Limits of interpretation
The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.
The INCI name does not show which clay minerals are present or where the clay comes from.
Functions
- Astringent
- Contracting and/or tightening the skin.
- Binding
- Providing adhesive properties during and after compression in cosmetic tablets and/or cakes.
- Buffering
- Stabilising the pH of an aqueous medium in a narrow range even if an acid or base is added. Altering and/or maintaining a cosmetic product's pH at the desired level.
- Humectant
- Retaining and/or preserving the moisture in a product during use.
EU regulation
This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.