# Silicate(2-), hexafluoro-, potassium (1:2)

URL: https://app.greenveil.ai/ingredients/ingredient_cas_16871_90_2
Categories: beauty, industrial
Functions: oral care, Pharmaceutical
Identifier: 16871-90-2

> Silicate(2-), hexafluoro-, potassium (1:2) is used as oral care / pharmaceutical. Greenveil chemical-concern score: 70/100 — High concern based on regulatory listings.. Assessed from 6 sources.

## Safety assessment

- Chemical concern score: 70/100 — High concern based on regulatory listings.
- Confidence: 4
- Rationale: Potassium Fluorosilicate is restricted in cosmetic products under Annex III of the EU Cosmetics Regulation (EC) 1223/2009.

## Regulatory status

- EU: restricted — Annex III of EU Cosmetics Regulation (EC) 1223/2009: substances which cosmetic products must not contain except subject to the restrictions laid down. Product types: Oral products Maximum concentration: 0,15 % calculated as F. When mixed with other fluorine compounds permitted under this Annex, total F concentration must not exceed 0,15 % Conditions of use and warnings: Contains potassium fluorosilicate For any toothpaste with compounds containing fluorine in a concentration of 0.1 to 0.15% calculated as F unless it is already labelled as contra-indicated for children (e.g. "for adult use only") the following labelling is obligatory: "Children of 6 years and younger: use a pea-sized amount for supervised brushing to minimise swallowing. In case of intake of…
- US: commercial use observed — EPA CPDat observed this chemical in 30 composition records across product categories including Batteries, Construction and building materials, Raw materials. EPA CPDat classifies this chemical for functional uses including oral care, Pharmaceutical.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

_Assessed by Greenveil._