Ingredient profile

HC Yellow No 4

hair dyeingCAS 59820-43-8

At least one of our safety lists speaks to this ingredient. Also written as HC Yellow No.4.

Where each list lands

Funding shown

Safe
Greenlens Ingredient Scan
Independent
No EU-regulated hazard recognized for this ingredient.
Safe
Greenlens Precautionary Screen
Independent
No listed hazard trait recognized for this ingredient.
Safe
Greenlens Tolerance Screen
Independent
No prohibited or high-risk classification for this ingredient.

Also screened — not on these lists