Colour and minerals
Calcium Aluminum Borosilicate
Calcium aluminum borosilicate and calcium titanium borosilicate are thin flakes of glass, coated with titanium dioxide, iron oxides or tin oxide to make them reflect colour.
- On a list as
- Calcium Aluminum Borosilicate · Calcium Titanium Borosilicate · Tin Oxide
- What it does
- Glass-flake shimmer
- Where it comes from
- Synthetic glass, coated with mineral pigments
- Vegan?
- Yes
Why it’s in a formula
They give a sparkling, high-shine finish that mica can't. Tin oxide helps the coating settle evenly on the flakes.
- They are glass, not the plastic glitter that sheds microplastics.
Where you’ll find it at Divina
Read from each piece’s published ingredient list. 3 pieces.
L'Ombre
Talc-Free Eyeshadow
$46
Listed as Calcium Aluminum Borosilicate, Tin Oxide, Calcium Titanium Borosilicate · some shades
Vegan, going by its list
La Palette
Eyeshadow Palette
$78
Listed as Calcium Aluminum Borosilicate, Tin Oxide, Calcium Titanium Borosilicate · some shades
Vegan, going by its list
Questions
Is calcium aluminum borosilicate a microplastic?
No. It is a glass flake, not plastic.
Is it safe near the eyes?
Used in finely milled eyeshadow it is widely considered safe. As with any shimmer, keep loose flakes out of the eyes.
How we know: every ingredient list on this site is the manufacturer’s own, read piece by piece and shade by shade, and the pieces above are worked out from those lists each time the site is built. Ingredient names and functions follow the EU’s CosIng database. This page describes cosmetic ingredients; it isn’t medical advice.
More in “Colour and minerals”


