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Formed over three million years ago by the collision of volcanic ash and glacial ice, THIS rare resource of mineral-rich green nontronite clay is amongst the purest in the world.


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This unique deposit of New Zealand nontronite was formed through the combination of ancient volcanic ash and fresh glacial water at the foothills of the Southern Alps over three million years ago. It now rests on a tholeiitic basalt flow, below a pliopleistocene greenwood formation and blue viviantic sands.

Due to the nature of the volcanic ash and the fresh glacial water environment, it also contains other healing clays such as kaolinite, illite and montmorillinite.

Another differentiator is the remoteness of the deposit – allowing it to remain pure, uniform and unaltered. Here at New Zealand Glacial Clay we are realistic in the knowledge that our deposit of precious nontronite clay is a finite reserve, and we vow to process it in such a way that maximises the potential of the resource whilst maintaining high environmental and sustainability standards and policies.

We do not support the testing of our clay on any living animal, nor do we add anything that is not organic or not natural. We want to connect, maintain and build long-term meaningful relationships with every customer, no matter how big or small, and we intend building these on the foundations of honesty, integrity and open communication channels. In short, we aim to be as natural and honest as our clay. 


The science behind our product

New Zealand Glacial Clay has a naturally high negative chemical charge that creates an electrical attraction to bind to the positive charge in the chemicals and toxins in the skin. This bond removes and absorbs the harmful chemicals and toxins from the skin through its ability to stimulate a deficiency or absorb an excess of toxins.

Laboratory results show our clay has neutral pH ~7, making it ideal for a wide variety of applications, both as a standalone product, or as an ingredient in cosmetic manufacturing. Certificates of Analysis (COA) and XRF mineral analysis show our clay contains none of the 5 heavy metals (Arsenic, Cadmium, Lead, Mercury, Antimony) ensuring it does not contain any harmful minerals and is ideal for skin and hair product formulations. 

New Zealand Glacial Clay is heat treated at 180ºC for 30 minutes, however further sterilisation may be needed if specific microbiology parameters are to be met.


The chemical analysis of New Zealand Glacial Clay further exemplifies the high quality of New Zealand Glacial Clay.

Silicon Dioxide             55%
Magnesium Oxide       1.5 - 2.5%
Aluminium Oxide         7 - 9.5%
Potassium Oxide         1 - 4.1%
Calcium Oxide             1 - 3.2%
Iron Oxide                     10 - 13%
Sodium Oxide              0 - 1%
Heavy Metals              Non-dectable