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Clays - Colours of the Rainbow

Galina St George

There is a huge variety of clays found in nature. They all differ in composition and therefore colours, and all find their uses. I have collected information about clays of various colours - truly colours of the Rainbow.

The Science of Clay

Here is what the on-line encyclopaedia Wikipedia says about clay:

Clay minerals are hydrous aluminium phyllosilicates, sometimes with variable amounts of iron, magnesium, alkali metals, alkaline earths and other cations. Clays have structures similar to the micas and therefore form flat hexagonal sheets. Clay minerals are common weathering products and low temperature hydrothermal alteration products. Clay minerals are very common in fine grained sedimentary rocks such as shale, mudstone and siltstone and in fine grained metamorphic slate and phyllite.

Clay minerals include the following groups:


Like all phyllosilicates, clay minerals are characterised by two-dimensional sheets of corner sharing SiO4 and AlO4 tetrahedra. Each tetrahedron shares 3 of its vertex oxygen atoms with other tetrahedra. The fourth vertex is not shared with another tetrahedron and all of the tetrahedra "point" in the same direction (i.e. all of the unshared vertices are on the same side of the sheet). These tetrahedral sheets have the chemical composition (Al,Si)3O4.

In clays the tetrahedral sheets are always bonded to octahedral sheets formed from small cations, such as aluminium or magnesium, coordinated by six oxygen atoms. The unshared vertex from the tetrahedral sheet also form part of one side of the octahedral sheet but an additional oxygen atom is located above the gap in the tetrahedral sheet at the center of the six tetrahedra. This oxygen atom is bonded to a hydrogen atom forming an OH group in the clay structure. Clays can be categorised depending on the way that tetrahedral and octahedral sheets are packaged into layers. If there is only one tetrahedral and one octahedral group in each layer the clay is known as a 1:1 clay. The alternative, known as a 2:1 clay, has two tetrahedral sheets with the unshared vertex of each sheet pointing towards each other and forming each side of the octahedral sheet.

Depending on the composition of the tetrahedral and octahedral sheets, the layer will have no charge, or will have a net negative charge. If the layers are charged this charge is balanced by interlayer cations such as Na+ or K+. In each case the interlayer can also contain water. The crystal structure is formed from a stack of layers interspaced with the interlayers”.

Cosmetic Clays

Clays have been used both in cosmetics and as a valuable health aid for thousands of years. In cosmetics, they works as a powerful exfoliator and cleanser, invigorating the skin, making it look young, fresh and glowing. It absorbs excess oil, dirt and toxic matter from the skin.

Cosmetic clays have different mineral content and therefore works differently on the skin. For this reason, some clays are more suitable for certain skin types than others.

Cosmetic clays are widely used in facials, powders, soap making, as a natural colorant, in body lotions, creams, etc.

For Cosmetic Clay Recipes read here....

Medicinal Clays

People have been using clays for medicinal purposes for thousands of years - to prevent poisoning, treat sores, bruises, ulcers, skin problems, as a food substitute in times of famine, to treat diarrhoea, indigestion, aching muscles and joints, help with toothache and mouth ulcers, to get rid of parasites, etc.

The Smectite Group

Smectite is characterized by its expandable properties. Unlike the other clays, only smectite can absorb toxins. This qualifies its structural uniqueness and sets it apart from all other clays. For this reason, smectite has become a favorite clay for industrial and dietary use.

The most familiar species of smectite is montmorillonite. Again, it is the most preferred species of edible clay. Most clay research has been done with montmorillonite.

What makes montmorillonite so special?

The montmorillonite minerals occur in very small micron sized particles. They are extremely fine-grained and thin-layered, more than any of the other clay minerals. The layers contain ions that are very loosely bound to one another and easily exchangeable. Not only will the toxins stick to its outside surface, but numerous elements and organic matter will enter the space between the layers.

In addition to its already unique structure, montmorillonite has a particularly large surface area when properly hydrated in water, which further boosts its adsorptive and absorptive properties. Chemically and structurally, it is shaped like a credit card, with negative charges on the flat surface and positive charges on the edges. Therefore, the negative charge (the good one) is many times more powerful that the positive charge. Montmorillonite is a more complicated clay and has a higher exchange capacity than the simpler species of clay, such as kaolinite. Its ability to adsorb and absorb toxins is greater than that of the clays in the other groups.

According to one article on clay (Lei 1996), a mineralogist at Massachusetts Institute of Technology, Robert T. Marin, stated that one gram of this clay has a surface area of 800 square meters. To give that some serious perspective, that's about ten football fields! The greater the surface area of the clay, the greater the power to pick up the positively charged particles or toxins many times its own weight.

Any given clay is usually a mixture of clay minerals, one or two minerals almost always being predominant. Clays are rarely found separately and are usually mixed not only with other clays but with microscopic crystals of quartz, mica, feldspar, and carbonates. Most clay contains montmorillonite to a greater or lesser degree. The available types of montmorillonite vary in color, consistency, and shape. The color may be white, gray, or tan, with tints of yellow or green. Typically, montmorillonite will be included in a mixture of clay groups in any given material; all six groups will most likely contain particles of montmorillonite. Sources of montmorillonite include the United States, Italy, China and France”.

Montmorillonite - what is is?

Montmorillonite is a very soft phyllosilicate mineral that typically forms in microscopic crystals, forming a clay. Montmorillonite, a member of the smectite family, is a 2:1 clay, meaning that it has 2 tetrahedral sheets sandwiching a central octahedral sheet. The particles are plate-shaped with an average diameter of approximately 1 micrometre. The particle thickness is extremely small (~ 1 nm).

It is the main constituent of the volcanic ash weathering product, bentonite. Montmorillonite's water content is variable and it increases greatly in volume when it absorbs water. Chemically it is hydrated sodium calcium aluminium magnesium silicate hydroxide (Na,Ca)x(Al,Mg)2(Si4O10)(OH)2·nH2O. Potassium, iron, and other cations are common substitutes, the exact ratio of cations varies with source.

It is used in the oil drilling industry as a component of drilling mud, making the water slurry viscous which helps in keeping the drill head cool and removing drill debris. It is also used as a soil additive to hold soil water in drought prone soils, to the construction of earthen dams and levees and to prevent the leakage of fluids. It is also used as a component of foundry sand and as a desiccant to remove moisture from air and gases.

Similar to other clays, montmorillonite swells with the addition of water. However, some montmorillonites expand considerably more than other clays due to water penetrating the interlayer molecular spaces and concomitant adsorption. The amount of expansion is due largely to the type of exchangeable cation contained in the sample. The presence of sodium as the predominant exchangeable cation can result in the clay swelling to several times its original volume. Hence, sodium montmorillonite has come to be used as the major constituent in non-explosive agents for splitting rock in natural stone quarries in order to limit the amount of waste, or for the demolition of concrete structures where the use of explosive charges is unacceptable.

Montmorillonite has been used in cosmetics and has reputed therapeutic effects. Indeed over 200 cultures have used the clay for medicinal purposes including the Ancient Egyptians, the Essenes and the pre-Aztec Amargosians, and other natives of Mexico, South America and North America.

Montmorillonite is also used in animal feeds as an anti-caking agent. Current research indicates that montmorillonite or bentonite has the ability to bind mycotoxins in the digestive system of animals as well as several bacteria in-vitro.

Montmorillonite was discovered in 1847 in Montmorillon in the Vienne prefecture of France, but is found in many locations world wide and known by other names. Other modern discoveries include about 1830 by the French-Canadian fur trapper Emile Pascal atop the 8600 feet high Big Horn Mountains in Wyoming, USA and as bentonite in about 1890 and named by an American geologist for the one time Fort Benton (on the Fort Benton Formation geological stratum) in the eastern Wyoming Rock Creek area. Native Americans have referred to the therapeutic clay as Ee-Wah-Kee.

Text & Image Reference:

And here is what website says about montmorillonite: 


Montmorillonite is a member of the general mineral group the clays. It typically forms microscopic or at least very small platy micaceous crystals. The water content is variable, and in fact when water is absorbed by the crystals they tend to swell to several times their original volume. This makes montmorillonite a useful mineral for several purposes. It is the main constituent in a volcanic ash called bentonite, which is used in drilling muds. The bentonite gives the water greater viscosity("thickness" of flow), which is very important in keeping a drill head cool during drilling and facilitating removal of rock and dirt from within a drill hole. Another important use of montmorillonite is as an additive to soils and rocks. The effect of the montmorillonite is to slow the progress of water through the soil or rocks. This is important to farmers with extended dry periods, engineers of earthen dams or levees or perhaps to plug up old drill holes to prevent leakage of toxic fluids from bottom levels to higher aquifers used for drinking water.

As a mineral specimen, montmorillonite does not get much consideration. Usually, pure samples of montmorillonite are massive, dull and not very attractive. However, as with all minerals, there are those exceptional specimens that defy the norm. Montmorillonite has been found as attractive pink inclusions in quartz crystals, and these make for interesting specimens.


  • Color is usually white, gray or pink with tints of yellow or green.
  • Luster is dull.
  • Transparency crystals are translucent and masses are opaque.
  • Crystal System is monoclinic; 2/m.
  • Crystal Habits: never in large individual crystals, usually found in compact or lamellar masses. Also seen as inclusions in quartz as fibers and powder-like masses.
  • Cleavage is perfect in one direction, basal; not seen in massive specimens.
  • Fracture is uneven to lamellar.
  • Hardness is 1- 2 (can sometimes leave marks on paper)
  • Specific Gravity is variable from 2.3 - 3 (average)
  • Streak is white.
  • Other Characteristics: crystals expand to many times their original volume when added to water.
  • Associated Minerals include other clays, garnets, biotite and quartz.
  • Notable Occurances: include sources in France, Italy, USA and many other locallities world wide.
  • Best Field Indicators softness, color, soapy feel, luster and expandability when added to water".

Blue Cambrian Montmorillonite Clay

Blue clay - member of the Smectite Group - is considered to be the most potent of all medicinal clays - more so than the French Green Montmorillonite clay. Montmorillonite clays are being mined in various parts of the world. Like with all minerals, the quality and composition of the deposit will vary greatly. Blue clay contains a number of minerals in their natural colloidal form which are used by the body to produce enzymes and as for many other bodily functions. Blue clay is a rich source of trace minerals, with the highest ability ot adsorb/absorb, so it is one of the most popular bulking agents in the beauty industry.

Being most potent, it has the most powerful detoxifying properties of all clays. Blue and Red Montmorillonite clays have similar properties and benefits. It is very effective at drawing oils and toxins from the skin and is best suited for oily skin and hair. It is also excellent for dealing with acne. It is not advisable for use by people with sensitive or dry skin, since it has a very drying effect. Blue clay can also be used in soaps and in body and foot powders as a natural color additive. Externally, blue clay is used in the making of masks, body wraps, baths, compresses, poultices, creams, lotions, etc.

Red Montmorillonite Clay

Red Montmorillonite is a close relative of Blue Montmorillonite and is highly efficient at drawing oils and toxins from the skin. For external use: this montmorillonite clay is good for use on the skin, over the site of sore muscles, sprains, and aches.

In the cosmetic idustry, it used in soaps and in body/foot powders as a natural color additive. Because of its drying effect, it is not recommended for use on the skin more than once a week or by the people with sensitive/dry skins. This is also a very polular clay in natural medicine for its detoxifying qualities. It is good for baths, compresses, face masks, body wraps, as a natural colouring agent, etc.

Bentonite (Montmorillonite) Clay

Bentonite Clay owes its name to a place called Fort Benton in the USA where it was first found. It was formed by the alteration of volcanic glass to clay minerals which are less than .005mm in size. It consists of hydrous aluminum silicates plus iron oxide and magnesium oxide, with either sodium or calcium oxides. It can absorb 40 - 50 times its weight and swell to form gel-like masses.

This clay is often used for drawing poulices and for treating sprains, bruises, insect bites, rashes, in perspiration absorbing foot powders, and in exfoliating and detoxifying face masks, as well as in body wraps. Most types of clay are drying because of their absorbent qualities so are recommended for normal to oily skin only.

Calcium bentonite type clay is non swelling and is also called Fuller's earth. It is widely used in cosmetics for face masks for oily/blemished skin for its drying effect.

Bentonite clay is a combination of montmorillonite and volcanic ash. It is a highly absorbent clay that pulls oils and toxins from the skin and is one of the best clays for making clay poultices. It is best suited for oily skin. Bentonite is also a good clay for use as an oily hair and scalp treatment.

Medicinally, it is one of the most effective natural intestinal detoxifying natural substances available, and therefore it is one of the most popular clays for this purpose.

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Calcium Montmorillonite (Fullers Earth)

Calcium Montmorillonite or Fullers Earth, is a natural, mineral clay type substance with the property of absorbing basic colors and removing them from oils. It is composed mainly of aluminium, silica, iron oxides, lime, magnesium, and water, in extremely variable proportions, and is generally classified as a sedimentary clay. In color it may be whitish, buff, brown, green, olive, or blue. Fullers earth was originally used in the fulling of wool to remove oil and grease but is now used in refining edible oils. It is also a useful base ingredient for facial clay recipes and adds a nice finishing touch to clay products promising to aid its user with their battle against oily skin. Add a tablespoon of fullers earth to your favourite cold process soap recipe for a bar of soap that eliminates hard to remove dirt and grease.

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Glacier Clay

Glacier clay is a rare type of clay and is found in British Columbia. It contains over 30 minerals and trace elements particle size less than .15 microns in size, making it the finest glacial marine clay yet discovered in the world. It has a natural pH balance of 6.5 to 7.3. It is easy to apply and remove. It stimulates the circulation, detoxifies, exfoliates dead skin cells while and smothes down wrinkles, leaving the skin soft, smooth and invigorated.

It produces erythema (local skin warmin), accelerates physiological processes and increases cell regeneration in surrounding tissues, improving skin elasticity and overall complexion. It is an excellent choice for ageing skin due to its soft but stimulating and rejuvenating effect.

Green Clays - Illite and Montmorillonite - What is the Difference?

Green Clays consist of volcanic ashes which are found near ancient volcanoes, 20-50 meters below the ground surface. Therefore, they contain only natural material treated mechanically, without any chemical additives.

There are two types of Green clay used - Montmorillonite and Illite.

I have come across many sites selling French Green Clay as such, without specifying whether it is a montmorillonite or an illite. I think that since these two clays have certain differences in their chemical makeup and structure, they need to be described separately, although their therapeutic properties are similar.

Green clays consist of curative volcanic ashes which are found near ancient volcanoes, 20-50 meters below the ground surface. It contains only natural material treated mechanically, without any chemical additives. They are rich in magnesium and trace elements, as well as organic plant matter which alongside iron oxide determines its soft green colour (illite has a lighter hue of green than montmorillonite). They detoxify, restore mineral balance and act as an absorbents. There are two types of Green clay used in natural medicine - Montmorillonite and Illite. Montmorillonite is part of the smectite group of clays and is named after a French region Montmorillon where it was first discovered, and Illite, named after the state Illinois, USA, where it was first found in 1937. Both clays take equally important places in the restoration and maintenance of health. However, as mentioned earlier, there are certain differences:

Following information has been offered to me by the manufacturer.

Illite is found in certain regions in the North of France and in the Atlantic basin. Montmorillonite is found mainly in the South of France.

Illite is is a non-swelling highly absorbent clay (30% - it absorbs 30% of water), and has a relatively low remineralisation power (12%). It is used in cases where detoxification and decongestion is important. Illite contains less magnesium than Montmorillonite. The active minerals in illite include calcium, silicium, several important mineral oxides, magnesium, potassium, dolomite, silicium, manganese, phosporous, copper, and selenium, as well a relatively small percentage of montmorillonite.

Montmorillonite of the South of France enjoys the sun 260 days per year. It lies in the Mediterranean basin and is rich in magnesium. Its sorptive properties are less than those of the Illite (it absorbs 20% of water), but its remineralisation properties are very high - 70%.

Cationic (ionic) exchange rate, alongside their sorptive properties, is one of the most important factors of clays. In fact, each type of clay exchanges mineral elements with the environment they are in and has a certian coefficient of absorption which varies from one clay to another. Montmorillonite has 60-70 Meq/g catioinic exchange rate, while Ilite has around 12 Meq/g.

Both Illte and Montmorillonite clays absorb water. However, the Montmorillonite clay is called 'the swelling' type, while illite clays are called 'non-swelling'. I have been wondering - why? They both absorb water, so both should be referred to as 'swelling' clays. I have asked the manufacturer to explain the difference. The reply I received was something I could not find anywhere. Apparently, the illite clays have a highly poprous crystal structure, so the water gets inside the crystals, which makes the clays so absorbent. With montmorillonites, on the other hand, the water gets between the flat layers in the clay particles, which causes the layers to move apart, causing the 'swelling' effect. Both the Green Montmorillonite and the Green Illite can absorb a large amount of water. For the other Illite clays and the Kaolinite the absorption rate is lower.

French Green Montmorillonite Clay

French Green (Montmorillonite) Clay is one of the most popular and useful clays used in cosmetics purposes. It contains a variety of minerals and salts including calcium, potassium, dolomite, magnesium, silica, manganese, phosphorous, silicon, copper, and selenium. These elements are essential in producing body enzymes which enhance the production of enzymes in all living organisms. Green Clay - grayish green, the colour is due to the presence of ferrous and magnesium ions. This is the most widely used of the cosmetic clays, Green Montmorillonite clay is best clay for oily skin, since it reduces sebum production, works as a wonderful absorbent and an effective exfoliator. Good choice for face masks, body wraps, compresses, baths, poultices.

Rhassoul Clay

Rhassoul clay is part of the smectite, or swelling, group of clay minerals. It is a rare and luxurious type of clay. It is mineral rich, reddish/brown ancient clay which comes from the Atlas Mountains of Morocco and has been traditionally used in Morocco and in Egypt as a soap, shampoo and skin conditioner. Rhassoul clay is truly exquisite and is different from other clays due to its unique composition, excellent ability to adsorb oils and impurities.

It is very high in trace elements such as silica, magnesium, iron, calcium, potassium and sodium. Because of the high mineral content, astringent properties, and absorption properties, Rhassoul clay is a wonderful and effective clay for cleansing, detoxification, and for general skin care treatments. It has been shown to improve skin elasticity, clear clogged pores, remove dead skin, excessive oil from skin, stimulate circulation, nourish and hydrate the skin. Rhassoul clay can be used in soap-making, facial masks, body wraps, clay packs, shampoos, and conditioners. It is used by the best spas around the world and is highly regarded in the beauty industry. Suitable for normal and oily skin. Not recommended for dry/sensitive skin.

The Illite Group

The illite group is named for the state of Illinois. Illite is a non-expanding mineral. The chemical formula: (K,H3O)(Al,Mg,Fe)2(Si,Al)4O10[(OH)2,(H2O). Illite is a phyllosilicate or layered silicate. The best-known species of illite is glauconite, a green mineral clay. It is typically found in clays of marine origin. Other colors include white and yellow. Unlike the Smectite Group, the Illite Group clays do not expand when hydrated.

Illite is a non-expanding, clay-sized, micaceous mineral. Illite is a phyllosilicate or layered silicate. Structurally illite is quite similar to muscovite or sericite with slightly more silicon, magnesium, iron, and water and slightly less tetrahedral aluminium and interlayer potassium. The chemical formula is given as (K,H3O)(Al,Mg,Fe)2(Si,Al)4O10[(OH)2,(H2O)][1], but there is considerable ion substitution. It occurs as aggregates of small monoclinic grey to white crystals. Due to the small size, positive identification usually requires x-ray diffraction analysis. Illite occurs as an alteration product of muscovite and feldspar in weathering and hydrothermal environments. It is common is sediments, soils, and argillaceous sedimentary rocks as well as in some low grade metamorphic rocks. Glauconite in sediments can be differentiated by x-ray analysis.

Illite was first described for occurrences in the Maquoketa shale in Calhoun County, Illinois, USA, in 1937. The name was derived from its type location in Illinois. Illite is also called hydromica or hydromuscovite. Brammallite is a sodium rich analogue”.

Text and image reference:

French Green Illite Clay

The most well known of the illite group is Green Illite clay. It is efficient at drawing oils and toxins from the skin and is also often referred to as French Green (Illite) Clay.

Unlike French Green Montmorillonite, French Green Illite is a non-swelling clay. It is sometimes called 'marine clay' due to the quarries being found in the ancient marine beds.

Green Illite clay is a superb detoxification product. Its detoxifying properties are explained by 2 main factors:

  • Its sorptive capacity is very high, so it draws toxins out of the body very effectively.
  • Its negative cumulative ionic charge which helps to attract and bind positively charged toxic waste and eliminate it out of the body.

French Green Illite clay is like a sponge, attracting water and toxins not only to its negatively charged surface, but also inside the numerous canals in its crystalline structure.

It is difficult to list all the wonderful benefits of French clays - not only because their properties have not been researched as well as they deserve, but also due to the fact that there is no condition on Earth which cannot be helped with clay in some way. Both clays have similar properties, with one clay detoxifying the body due to its higher sorption capacity (illite), and the other due to its ability to expand and attract negatively charged ions (montmorillonite, altough illite has this ability too, on a smaller scale).

French Yellow Illite Clay

Yellow Illite clay has a soft yellow colour and velvety texture. It is very similar to Green Illite in its therapeutic and cosmetic properties and uses. Its colour is due to a high level of iron oxide. Illite is found in certain regions in the North of France and in the Atlantic basin, in the areas abundant in red clays. It is a highly absorbent clay (30% - it absorbs 30% of water), and has a relatively low remineralisation power (8%). It is used in cases where detoxification and decongestion is important. Illite contains less magnesium than Montmorillonite. The active minerals in illite include calcium, silicium, several essential mineral oxides, magnesium, potassium, silicium, manganese, phosporous, copper, and selenium, as well a relatively small percentage of montmorillonite. The cationic/ionic exchange rate for the French Illite sold by NR is 32 meq/100g, which is almost 3 times as high as French Green Illite.

French Red Illite Clay

Red Illite Clay is similar in properties to Green and other Illite clays. Its main property is high sorptive capacity which makes it very useful for removing toxins. The only difference is its colouring which is explained by a higher presence of iron oxide. Illite is found in certain regions in the North of France (in our case it is Provence) and in the Atlantic basin.

French Red Illite is a non-swelling clay. It has a very rich mineral content. It has a sorption ability of 30% against Maontmorillonite's 20%. Its sorptive properties give it a very powerful drying and detoxifying effect. Red Illite is used mainly in the beauty industry and cosmetics production, for its tonifying, humidifying effect on the skin. It revives pale, sallow, ageing skin. It also purifies congested, acne-prone skin types. It improves bolood ciruclation and makes the skin look radiant, hydrated, reducing the appearance of wrinkles and also broken capillaries. The cationic exchange rate for the French Red Illite Clay offered on this site is 32 meq/100g.

French Pink Illite Clay

French Pink Illite is not a clay naturally mined as such - it is a mix of two French clays - White Kaolin and Red Illite and is mainly used in the beauty and cosmetics industry thanks to its soft, soothing, tonifying action on the skin. It is suitable for all skin types, but especially for mature skin, prone to wrinkle formation and flushing. Sensitive, fragile, dehydrated skin types benefit most from the use of French Pink Clay. If the skin is very sensitive, adding oil would make the clay even more delicate and effective in the above mentioned cases.

The clay is very rich in minerals, so the skin gets remineralised in the process. The cationic exchange rate of the French Pink clay sold by NR is 26 meq/100g.

The Kaolinite Group

“The word kaolin is derived from the name of the Chinese town Kao-Ling (or Gaoling, "high ridge"), located in the Jiangxi Province of southeast China, where the written description of porcelain can be found. The word kaolin is now used as a loose trade and geologic term to refer to white clayey rock that is predominantly composed of Kaolin Group (khandite) minerals. The most common constituent is the mineral kaolinite. Kaolinite is a layered silocate made of alternating sheets of octahedrally coordinated aluminum and tetrahedrally coordinated silicon that are bonded by hydroxyl groups. Kaolinite is represented by the chemical formula Al2Si2O5(OH)4, and it most often occurs as clay-sized, platelike, hexagonally shaped crystals”.

While kaolin adsorbs toxins and bacteria like the other clays, it acts mainly as a bulking agent and in anti-diarrhoeal medications. Sometimes kaolin is added to food supplement due to its mineral content.

The Kaolinite Group includes clays of various chemical composition and therefore varying in colour.

White Kaolin Clay

White Kaolin Clay - most abundant mineral in the Kaolinite Group - is also known as China Clay or White Cosmetic Clay. It owes its colour to the high concentration of aluminium. It is the most used clay in cosmetics. Due to its natural adsorbent properties, it is an essential ingredient in the manufacturing of cosmetics - soaps, scrubs, poultices, body and face powders, and masks. It is the mildest of all the cosmetic clays and is also used as a fixative in the perfume industry. Its action on the skin is very gentle, so it can be used on most sensitive skins. It adsorbs impurities from the skin without removing any natural oils. It helps stimulate circulation in the skin while gently exfoliating and cleansing it. Its adsorption effect is minimal, so it does not draw oils from the skin and can therefore be used on dry and sensitive skin types.

Pink/Rose Kaolin Clay

Pink/Rose Kaolin Clay is a mix of red and white kaolin clays, so the best properties of both clays can be experienced at once. It has a mild, soothing, cleansing and exfoliating action, and can be used on dry to normal skins. It is an excellent choice for face masks, baths, creams lotions body products. It is often used as a colourant in cosmetics.

Pink Kaolin Clay is generally for normal skin although is can be extremely beneficial for dry and sensitive skin. Pink clay is soothing, cleansing, hydrating and detoxifying.

Pink kaolin is a gentle clay, making it suitable for sensitive skin. It helps stimulate circulation to the skin while gently exfoliating and cleansing it. Pink kaolin clay does not draw oils from the skin (since kaolin clays do not absorb, only adsorb), and can therefore be used on dry skin types. It can be used in body powders to keep skin dry.

Uses: Cosmetic/Medicinal. Suitable for dry, sensitive or normal skin types

Red Kaolin Clay

Red Kaolin Clay - also known as Moroccan red clay or Maroc clay - is rich in iron oxide (this gives it the red colour), it is highly adsorbent and draws oils and toxins from the skin. This is the clay to use for moist, oily skin types. It can be used in the treatment of acne, spots, rashes, etc.

Moroccan red clay is extracted from the Atlas Mountains in Morocco. It is a strong cleansing clay which will draw excess oils from the skin, stimulate circulation to the skin and act as a powerful astringent for oily skin and hair. It is very popular in spas around the world. Good for use in in face masks and body wraps.

Most suitable for normal and oily skin/hair types. Not to be used for dry/sensitive skin.

Yellow Kaolin Clay

Yellow Kaolin Clay is also a relatively rare type of clay. It is mild and is traditionally used on sensitive skin types. It stimulates blood circulation while gently exfoliating and cleansing the skin. It also draws impurities out of the skin. Being mild by nature, it will not remove natural oils, and can therefore be used on most skin types. Like all coloured clays, it can be used as a colourant in cosmetic products.

Suitable for dry, sensitive and normal skin.

Black Clay

Black Clay contains a lot of iron oxide so it is very popular for use decorative cosmetics. It is particularly good for nourishing and revitalising the skin due to its its mineral content. Can be used for most skin types.