Silica (Silicon Dioxide, the chemical synthesis of SiO2) is a mineral found widely in nature. It exists mainly in quartz, crystal, etc., and is commonly used in food, medicine and industry. Silica is used as a food additive, primarily as an anti-caking agent to prevent sticking of powdered products.
Silicone products have gained a lot of popularity in the market in recent years and have gained popularity. Like silicone kitchenware, silicone baby toys, silicone baby feeding set, silicone medical stuff, and more.

gluten definition
Gluten is a protein found in grains such as wheat, barley and rye. It allows dough to firm up and gives baked goods edge and texture character. However, in people with celiac disease or gluten sensitivity, consuming gluten can trigger an immune response that can lead to intestinal damage or other unpleasant symptoms.
Is there gluten in silica?
From a chemical perspective, silica is a pure mineral and contains no proteinaceous compounds. Thus, silica itself is gluten-free. As a food additive, silica is not affected by those who are sensitive to gluten and is generally considered safe.
However, it cannot be ruled out that gluten-sensitive people can develop allergies if gluten-based products are used. Therefore, before using any silicone products, gluten-sensitive people should first determine whether the product has been filled or purified with gluten ingredients.
So Silica (SiO2) is a gluten-free material widely used in the food industry. Silica itself is safe for those with gluten sensitivities, but when choosing foods, you should check the packaging to make sure it does not contain any gluten. The final step is to confirm whether the silicone materials used are cross-contaminated.