# Zinc sulfate heptahydrate

URL: https://app.greenveil.ai/ingredients/ingredient_cas_557_34_6
Categories: beauty, food, industrial, pharma
Functions: Dye, Flavouring and nutrient, process regulator
Identifier: 557-34-6

> Zinc sulfate heptahydrate is used as dye / flavouring and nutrient. 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: Water-soluble zinc salts with the exception of zinc 4- hydroxy-benzene sulphonate (entry 25 of Annex III) 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: (a) Toothpaste intended for users above 1 year of age (b) Toothpaste intended for children between 6 months and 1 year of age (c) Mouthwash intended for users above 6 years of age (d) Other products Maximum concentration: (a) 1 % (as zinc) (b) 0,72 % (as zinc) (c) 0,1 % (as zinc) (d) 1 % (as zinc)
- US: commercial use observed — EPA CPDat observed this chemical in 49 composition records across product categories including Food and drug, Arts and crafts/office supplies, Laboratory supplies. EPA CPDat classifies this chemical for functional uses including process regulator, Flavouring and nutrient, Dye.
- US: marketed drug occurrence — FDA NDC lists this ingredient in 16 active drug products and 17 total products.
- US: listed in openFDA substance — openFDA substance registry classifies this ingredient as chemical.

_Assessed by Greenveil._