What it is
Calcium sodium phosphosilicate is a class of bioactive glass originally developed for use in dental and biomedical materials, where it can release mineral ions in contact with moisture. In cosmetics it appears as a fine mineral powder used for bulking and conditioning effects. In stick and balm formats it can contribute to the powder phase and surface feel of the product.
Safety & warnings
As an insoluble mineral powder it is generally well tolerated topically; as with any fine powder, care during handling avoids inhalation of airborne dust.
Origin & sourcing
Synthetic mineral; manufactured as a glass-type powder combining calcium, sodium, phosphorus, and silicon oxides.
History
Bioactive glass of this general composition was first developed for biomedical and dental applications before being adapted to personal care formulations.
Questions everyone asks
What kind of material is calcium sodium phosphosilicate?
It is a bioactive glass-type mineral powder made from calcium, sodium, phosphorus, and silicon, originally developed for dental and biomedical uses.
What role does it play in cosmetic sticks?
It serves as a bulking and skin-conditioning mineral powder, contributing to the powder phase and surface feel of the product.