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Calcium Sodium Borosilicate

What Calcium Sodium Borosilicate is & what it does

A glass-based material used to carry reflective pigments for a sparkling, glowing finish. It adds dimension and shimmer.

What does Calcium Sodium Borosilicate do in skincare?

Calcium Sodium Borosilicate is a glass-like mineral powder used mostly for its optical and texture effects. In makeup and some sunscreens it carries shimmer or pearl pigments and can add a soft-focus, light-reflecting finish. It does not treat the skin, it mainly shapes how a product looks and feels.

Is Calcium Sodium Borosilicate safe?

Calcium Sodium Borosilicate is a widely used cosmetic ingredient generally regarded as low risk in finished products at standard use levels. It is an inert, insoluble mineral that stays on the skin surface rather than being absorbed. As with any ingredient, people with specific sensitivities should check the full product label.

Is Calcium Sodium Borosilicate natural or synthetic?

Calcium Sodium Borosilicate is synthetic. It is a manufactured borosilicate glass made from mineral raw materials such as silica, boron, calcium, and sodium compounds. The result is a controlled, glass-type powder rather than a directly harvested natural material.

Sunscreens with Calcium Sodium Borosilicate

We rate 35 sunscreens that contain it, showing the top 10 by overall score:

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