Calcium Titanium Borosilicate: What Is It, Cosmetic Uses, Benefits & Side Effects

Curious about this ingredient? In this article we're explaining exactly what it is and why it's used within cosmetic formulations.
Updated on: June 24, 2025
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All information on this page is verified using publicly available nomenclature standards and reference materials from The Personal Care Products Council (PCPC) and the European Commission's CosIng database. Our analyses are based on technical data from these sources to ensure accuracy and reliability.

What Is Calcium Titanium Borosilicate?

Calcium Titanium Borosilicate is a man-made glass that blends calcium, titanium and boron silicates into a single shimmering powder. It starts as a molten mix of sand, calcium oxide, titanium dioxide and boric acid that is rapidly cooled to form glass, then finely ground or flaked to the desired particle size. The result is a lightweight, translucent material that can scatter light in a way that gives cosmetics a subtle sparkle or a soft focus finish.

The ingredient emerged in the early 2000s when formulators were looking for alternatives to plastic glitter and traditional mica for creating luxe visual effects. Because its particle edges can be polished smooth, it offers shine without the gritty feel of older pearlescent agents. Today it shows up in pressed and loose eyeshadows, highlighters, lip glosses, nail lacquers, skin-polishing masks and gentle facial scrubs.

Calcium Titanium Borosilicate’s Cosmetic Benefits/Uses

In beauty formulas Calcium Titanium Borosilicate serves two main jobs that improve both feel and appearance.

  • Abrasive – Works as a mild, non-scratch exfoliant that helps lift away dead surface cells. This leaves skin looking smoother and can make makeup glide on more evenly.
  • Bulking – Adds volume to powders and creams so the product spreads easily, feels silky and fills out its packaging without needing heavier fillers.

Who Can Use Calcium Titanium Borosilicate

Because it is an inert glass powder, Calcium Titanium Borosilicate is generally well tolerated by most skin types including oily, dry, combination and mature skin. Sensitive skin can usually handle it as well, since the particles are polished smooth, but very reactive complexions may prefer to limit use to avoid any chance of mechanical irritation from its mild exfoliating action.

The ingredient is synthetic and mineral based, containing no animal derived components, so it is considered suitable for vegans and vegetarians. As always, check the full product label to be sure other ingredients align with your lifestyle choices.

No data suggest that Calcium Titanium Borosilicate poses a risk to women who are pregnant or breastfeeding when used in topical cosmetics. That said, this is not medical advice and anyone who is expecting or nursing should run new skincare or makeup past a qualified healthcare professional to be on the safe side.

The glass flakes do not absorb UV light or alter the way your skin handles sun exposure, so they are not linked to photosensitivity. There are no known interactions with common actives such as retinoids or vitamin C, making the ingredient easy to slot into most routines.

Potential Side Effects/Adverse Reactions

Individual responses to any cosmetic ingredient can differ. The points below outline potential side effects people could experience with topical Calcium Titanium Borosilicate, though the vast majority of users will not encounter these issues when the product is formulated and used correctly.

  • Mechanical irritation – Overzealous scrubbing with products that contain larger particles may leave skin feeling scratchy or red
  • Eye discomfort – If loose powder drifts into the eyes it can cause stinging or a gritty sensation until rinsed out with water
  • Contact dermatitis – Rare sensitization may present as itching or a mild rash in extremely sensitive individuals
  • Respiratory irritation – Inhaling airborne dust while applying loose powders can lead to coughing or throat tickle especially in those with asthma or other lung conditions

If you notice any of the above reactions stop using the product and seek medical advice if symptoms persist or worsen.

Comedogenic Rating

Rating: 0/5

Calcium Titanium Borosilicate is an inert glass powder that sits on top of the skin and contains no oils or waxes that could block pores. Its particles are too large to settle into follicles so it does not create the occlusive film associated with breakouts. Because of this it is considered non-comedogenic and suitable for acne-prone skin.

Since it does not absorb sebum or swell when wet, the risk of pore congestion remains extremely low even in humid climates or under heavy makeup layers.

Summary

Calcium Titanium Borosilicate acts mainly as a gentle abrasive and a bulking agent. Its polished glass flakes buff away dull surface cells for a smoother look, while their light-scattering ability gives formulas more volume and a soft glow without adding weight.

The ingredient has gained moderate popularity as brands move away from plastic glitter and seek shinier alternatives to mica. You will find it most often in eye shadows, highlighters, lip glosses, nail polishes and mild exfoliating masks.

Overall safety data show it is well tolerated by nearly all skin types with minimal risk of irritation or pore clogging. As with any new cosmetic it is wise to do a small patch test before full use just to be safe.

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