Acid Red 33

INCI: CI 17200

CAS Number
3567-66-6
Function
Cosmetic colorant
Safety Rating
GOOD

Regulatory Status

๐Ÿ‡ช๐Ÿ‡บ EU Status permitted
๐Ÿ‡บ๐Ÿ‡ธ US Status permitted
US Notes Permitted โ€“ D&C Red No. 33, permanently listed (21 CFR 74.2333). Externally applied cosmetics; lip products โ‰ค3%; mouthwashes/dentifrices. Not for eye area. Certification required

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
low
Sensitization
low

Calculate MoS for your specific formulation with the MoS Calculator.

Expert Verdict

US lip-product limit of 3% by weight; ingested drug limit 0.75 mg/daily dose; batch certification required in US; not for eye area

โš ๏ธ
Concern Level: Moderate

Regulatory Flags

colorant eu_children_restricted epa_safer_alternative ifra_fragrance eu_cosing_listed

Frequently Asked Questions

Is Acid Red 33 safe in cosmetics?

US lip-product limit of 3% by weight; ingested drug limit 0.75 mg/daily dose; batch certification required in US; not for eye area The EU classifies Acid Red 33 as "permitted". Safety rating: GOOD.

Is Acid Red 33 allowed in the EU?

Acid Red 33 EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Acid Red 33 do in cosmetics?

Acid Red 33 functions as: Cosmetic colorant. It is classified as a cosmetic ingredient in our database. CAS number: 3567-66-6.

What is the Margin of Safety for Acid Red 33?

adequate The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.

๐Ÿ“ฑ

Is Acid Red 33 in Your Products?

Scan any product label with Piro โ€” our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.

Try Piro Free โ†’

Analyze Your Full Ingredient List

Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Acid Red 33 in your formulation.