Aluminas are currently the rising star in the cosmetics industry. More and more often they come in cosmetic products are used. These types of mineral earth, of which there are various types, are a versatile, all-natural raw material that is ideally suited for sensitive skin.
Clays were formed during the last Ice Age. Today, they are mined at depths of between ten and thirty meters. Basically, clay mining involves mining layers of loess (a mixture of clay and soil developed by the wind) that formed over several millennia.
Clays are rich in various minerals. Depending on where they are broken down, they contain magnesium, calcium, iron, silica, copper and a whole range of other substances.
To be used for cosmetic products, clays must be germ-free and fundamentally clean. Therefore, they are dried after reduction either in special furnaces or by the sun. This process kills any germs and pasteurizes the clay.
People have known about the special properties of clay since ancient times. In Pharaonic Egypt, they were used for antiseptics and mud baths. Hippocrates, the famous physician, also recommended clay for internal use.
Clay and Healing Earth
Some clays are also called "healing earth". This is a protected term. To be allowed to use that title, rigorous testing procedures must be used. Once the clay meets the testing standards it is then considered medicinal by pharmaceutical legislation. All other mineral earths are not approved for human consumption, but can easily be used for cosmetic products.
Clays are available in various colors. They are not dyed, as one might suspect, but get their color mainly from different concentrations of magnesium and iron oxides.
Clays that have a high proportion of iron oxide, are usually pink, red or sometimes yellow. They are used for cosmetic masks, chemical-free makeup and substitutes for facial cleansers.
Green mineral earth has a high copper content. It is found in Central Europe, and especially in France. After drying the clay in the sun it is used for cosmetic masks, cleansing creams, scrubs, bath additives and for concealing cosmetics.
Ghassoul comes from the Atlas Mountains and has a high silica content. Mixed with water it has intensive cleansing powers, which is why it is frequently used as a shower gel replacement, a shampoo or as a cleaning agent for greasy or blemished skin.
Kaolin, or white clay, is special because it is the only completely iron-free healing earth. It has a fine-grained texture and is used in cosmetics as a mask base or as a raw material for body powder. Kaolin is ideally suited for sensitive skin.
Since all clays are organic and one hundred percent free of chemical additives, they are extremely versatile. They can also be used without problems for severe skin problems.
Most clays are used as the basis for face masks and scrubs or as a bath additive. Healing Earth, once medically certified, can be taken to help fight stomach cramps, heartburn, upset stomachs, etc.