# Sodium hexafluorosilicate

URL: https://app.greenveil.ai/ingredients/ingredient_cas_16893_85_9
Categories: beauty, cleaning, industrial, pharma
Functions: Abrasive, Anti-scaling agent, Degradant/impurity, oral care, Pharmaceutical, water fluoridation
Identifier: 16893-85-9

> Sodium hexafluorosilicate is used as abrasive / anti-scaling agent. Greenveil chemical-concern score: 70/100 — High concern based on regulatory listings.. Assessed from 7 sources.

## Safety assessment

- Chemical concern score: 70/100 — High concern based on regulatory listings.
- Confidence: 4
- Rationale: Sodium 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 sodium 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 114 composition records across product categories including Laboratory supplies, Home maintenance, Cleaning and safety. EPA CPDat classifies this chemical for functional uses including Abrasive, Anti-scaling agent, oral care.
- US: marketed drug occurrence — FDA NDC lists this ingredient in 1 active drug products and 1 total products.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

_Assessed by Greenveil._