Bismuth oxychloride (BiOCl) is a lustrous white solid that was first used in antiquity. Its layered structure gives it the pearly iridescent light reflectivity that it is so well known for.
Its chemical properties are reminiscent of antimony and arsenic, and it is typically found in lead and copper extraction, and as a byproduct of refining them. It is often considered an impurity and has many of the same toxic properties as those other metals.
Despite its potential to cause skin irritations, this ingredient is a common component in mineral makeup and is often used at high ratios. This is not a good idea for anyone, as it can cause itching and burning, and may also be linked to some cases of dermatitis and even cancer.
In addition, it is a potential allergen. This is a common issue with powder foundations and can happen when the product is diluted or high in concentration, as it is often a base for other minerals.
There is an increasing amount of women who are experiencing problems with their skin when they switch to mineral makeup and this is one of the ingredients that seems to be at the root of it all. They have written to us describing their itching, burning and discomfort, and in some cases, even had to discontinue using this product because it was so itchy and painful.
It is important to know that this ingredient does not come from the earth and it is not naturally present on the skin, which means it is highly refined. This is why it is a common ingredient in mineral cosmetics and it is one of the main reasons why women are experiencing skin issues after switching to this type of makeup.