Ingredient profile

Basic Yellow 40

hair dyeingCAS 29556-33-0

Catalogued by CosIng (a real cosmetic ingredient with a CAS number); none of our lists flag it.

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