# Zinc dihydrogen orthosilicate--boric acid (1/1/1)

URL: https://app.greenveil.ai/ingredients/ingredient_dtxsid_dtxsid20723981
Categories: beauty, industrial
Functions: Bulking
Identifier: DTXSID20723981

> Zinc dihydrogen orthosilicate--boric acid (1/1/1): Used in cosmetics as a bulking agent. Glass, borosilicate, an amorphous substance of imprecise composition formed by the fusion of silica in the presence of significant levels of boron oxide, sodium oxide and zinc oxide. EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. Compiled from 3 published data sources.

## Safety assessment

- Chemical concern: not yet assessed
- Is it a concern? We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.
- Rationale: EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products.

## Regulatory status

- EU: Active — Glass, borosilicate, an amorphous substance of imprecise composition formed by the fusion of silica in the presence of significant levels of boron oxide, sodium oxide and zinc oxide
- US: commercial use observed — EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Filler.

## Expert safety opinions

- SCCS (EU Scientific Committee on Consumer Safety): no opinion on file.
- CIR (Cosmetic Ingredient Review (US expert panel)): no opinion on file.

## Data sources

- CosIng (updated 2026-09-23): https://ec.europa.eu/growth/tools-databases/cosing/details/38953
- EPA Chemical and Products Database (updated 2019-12-20): https://ec.europa.eu/growth/tools-databases/cosing/index.cfm?fuseaction=search.details_v2&id=38953
- EPA DSSTox Identifiers (updated 2025-12-29): https://epa.figshare.com/articles/dataset/Chemistry_Dashboard_Data_DSSTox_Identifiers_Mapped_to_CAS_Numbers_and_Names/5588566

_Assessed by Greenveil._