Montmorillonite
Montmorillonite is a naturally occurring clay mineral widely used in UK skincare and beauty products for its ability to absorb excess oil and impurities. Often found in purifying masks, cleansers and detoxifying treatments, it leaves skin feeling clean and refreshed without harsh stripping.
How it works in skincare
In cosmetics and skincare, montmorillonite works as a gentle absorbent and purifying agent thanks to its layered silicate structure and high cation-exchange capacity. When mixed with water it swells to form a soft paste that draws out sebum, environmental pollutants and dead skin cells from the surface of the skin, making it a popular choice in clay masks and clarifying formulations. It also provides a smooth, matte finish and can help improve the texture and stability of both rinse-off and leave-on products.
Key benefits
- Absorbs excess oil and sebum
- Helps remove impurities and pollutants
- Gently exfoliates by lifting dead skin cells
- Leaves skin feeling clean and mattified
- Improves product texture and consistency
- Provides a soothing mask-like feel
Best for
oily skin, combination skin, acne-prone skin, congested skin
Where it comes from
Montmorillonite is a naturally occurring mineral belonging to the smectite group of clays. It is mined from ancient volcanic ash deposits found in regions such as France, the USA and Italy.
Products with Montmorillonite
Not every product on UK Lips lists a full ingredient breakdown — so there may be many more formulas that contain Montmorillonite than we can show here. These are the comparisons where we’ve confirmed it in the listed ingredients.