A few non-dietary studies have reported adverse effects in the gastrointestinal tract of laboratory animals given food-grade TiO₂. However, these same effects were not seen when the same or higher doses of food-grade TiO₂ were administered in the animals' diet. Dietary studies best reflect how humans are exposed to TiO₂ from food. Thus, the Food Directorate placed the most emphasis on the results of these studies in the state of the science report.

This route affords a product that is 29.4 wt % ZnS and 70.6 wt % BaSO₄. Variations exist, for example, more ZnS-rich materials are produced when zinc chloride is added to the mixture of zinc sulfate and barium sulfide.

Sunscreens and cosmetics containing titanium dioxide are generally considered safe since they are mineral-based products. Mineral products are often recommended for acne-prone and sensitive skin. However, there have been some concerns that titanium dioxide may have a negative impact on health.

pH-value

Because of their small size, nanoparticles may have unique physical and chemical properties. These properties may cause them to interact with living systems differently than larger materials with the same chemical composition (also known as bulk materials).

The European Commission banned titanium dioxide as a food additive in the EU in 2022 after the European Food Safety Authority (EFSA) conducted an updated safety assessment of E171 and concluded the panel could not eliminate concerns about its genotoxicity. 

After oral ingestion, the absorption of titanium dioxide particles is low, however they can accumulate in the body, Maged Younes, chair of the European Food Safety Authority's expert Panel on Food Additives and Flavourings, said in a May 2021 statement.

One of the primary uses of titanium dioxide is in the production of pigments for paints, coatings, and plastics. Titanium dioxide is known for its excellent opacity, brightness, and whiteness, making it an ideal choice for creating vibrant and long-lasting colors. Manufacturers of titanium dioxide carefully control the particle size and crystal structure of the pigment to ensure consistent quality and performance.

Titanium dioxide is found in pretty much all makeup & sunscreen.

And studies have long shown that products applied to the skin end up in the bloodstream within half an hour. With penetration rates depending on where they are applied. Absorption rates for your face & scalp are 5-10 times higher than on other parts of our body (Hotchkiss 1994).

Not to mention that in 2005, the Environmental Working Group published a combination of two studies that found toxic chemicals in the umbilical cord blood of newborn babies born in the U.S. They screened for more than 400 chemicals, and an astounding 287 toxins were detected within the umbilical cord blood of these newborns. Of these 287 chemicals, 217 were neurotoxins, and 208 are known to damage growth development or cause birth defects.

If you want to avoid titanium dioxide, read labels carefully and stick to minimally processed whole foods.

Calcium carbonate (CaCO3) and titanium dioxide (TiO2) are two widely used industrial materials with various applications. In this article, we will discuss the importance of CaCO3 and TiO2 in manufacturing processes and their impact on the global economy.