Particle surface area is the property that translates directly to the ability of a colloid to interact with its environment. The particular effectiveness of colloids results from their capacity to present the largest possible surface area of the metal particles to an area of interest (bacteria, for example). The importance of colloid particle surface area cannot be over emphasised. It is the single most important attribute for determining how effectively the colloidal particles will interact with the environment inside the human body.

Purest Colloids products have the smallest particle size with the highest surface area available no other manufacturer can match them.

To understand the effect of particle size on surface area, consider a U.S. silver dollar. The silver dollar contains 26.96 grams of coin silver, has a diameter of about 40 mm, and has a total surface area of approximately 27.70 square centimetres. If the same amount of coin silver were divided into tiny particles – say 1 nanometer (nm) in diameter – the total surface area of those particles would be 11,400 square meters, which is equal to 122,708 square feet, or 2,817 acres. When the amount of coin silver contained in a silver dollar is rendered into 1 nm particles, the surface area of those particles is 4.115 million times greater than the surface area of the silver dollar. So you can see by this example that the smaller the particles and the more of them, the greater the particle surface area.

In the chemical world, reactivity increases with increasing surface area. For this reason particle surface area is an excellent metric for comparing the physical properties of colloidal products.

It is because surface area is SO crucial to effectiveness, that Purest Colloids true colloidal products are superior to ionic products, and colloids manufactured by chemical reduction.