What Is Calcium Silicate?
Calcium silicate is a white, powdery mineral composed of calcium, silicon and oxygen (Ca2SiO4). It’s found naturally in limestone deposits and can also be produced synthetically. When used cosmetically, calcium silicate is often combined with other ingredients such as zinc oxide or titanium dioxide. It’s fully bio-compatible, which means it’s safe for ingestion and for use on the skin.
The Five Functions of Calcium Silicate in Cosmetics
Calcium silicate has a variety of uses in cosmetics and personal care products. Here are the five most common functions.
- Absorbent: The mineral can absorb excess oil and sebum from the skin, which makes it ideal for use in products designed for oily or acne-prone skin types.
- Bulking: Calcium silicate can be used to thicken and stabilize products.
- Opacifying: This mineral can be used to create a matte finish in cosmetics. It reduces the transparency of products, which is why it’s often used in foundations and concealers.
- Pearlescent: Calcium silicate can also be used to create a pearlescent finish in products. It’s often used in eyeshadows, blushes and highlighters.
- Viscosity controlling: Calcium silicate can be added to products to improve their texture and make them more pleasant to use.
Because it can be used to alter the texture of a product, calcium silicate is often used in combination with other ingredients. For example, it’s often combined with zinc oxide to create a sunscreen with a more pleasant texture. It’s even added to powdered foods and table salt to prevent caking!
The Safety of Calcium Silicate
Calcium silicate is a safe and non-toxic ingredient. It’s classified as GRAS (Generally Recognized as Safe) by the FDA and is approved for use in cosmetics in Europe. There are no known side effects associated with this ingredient.
Is It Safe for Sensitive Skin?
Yes! Calcium silicate is a good choice for those with sensitive skin. The ingredient is non-irritating and won’t cause any adverse reactions. It doesn’t penetrate the skin, so it’s also unlikely to cause any allergic reactions. Even when ingested, calcium silicate is considered safe.
What Kinds of Products Contain This Mineral?
Now, let’s take a look at some products that might contain this mineral. Calcium silicate is found in a variety of cosmetic and personal care products. It’s often used in powder-based products such as pressed powders, eyeshadows and blushes. It can also be found in foundations, concealers, setting sprays and powder sunscreens.
Another group of products that often contain calcium silicate are those designed for oily or acne-prone skin. These include absorbent powders, mattifying primers and blotting papers. Finally, deodorant roll-ons and dry shampoo powders might contain calcium silicate.
How to Use Calcium Silicate in Your Beauty Routine
If you want to reap the benefits of calcium silicate, look for products that contain this ingredient. Can you combine it with other ingredients in your routine? As long as you’re not trying to achieve a glossy or shimmery finish, calcium silicate can be used in combination with other minerals. Keep in mind that it’s an absorbent, so it might dry out your skin if used in excess.
If you have sensitive skin, don’t worry! Calcium silicate is a safe ingredient that won’t cause any irritation. It’s even gentle enough for those with conditions like rosacea and eczema.
So, what is calcium silicate doing in your beauty products? This versatile mineral can be used to absorb excess oil, mattify the skin, control viscosity and more. Next time you’re shopping for cosmetics, don’t worry about this ingredient.
Do you have any experience with calcium silicate? Have you found it in any of your favorite products? Let us know in the comments!
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