Poor Cosmetic Ingredient GHS Classified

Thiourea ⚠️

INCI: THIOUREA

CAS Number
62-56-6
Function
Historically: Depilatory, Reducing Agent — NOW PROHIBITED
Safety Rating
POOR

Regulatory Status

🇪🇺 EU Status prohibited
🇺🇸 US Status prohibited
US Notes Not specifically banned by FDA, but classified as suspected carcinogen; subject to adulteration provisions if unsafe

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

Safety Data

Margin of Safety (MoS)
not established
Dermal Absorption
high
Sensitization
high

Calculate MoS for your specific formulation with the MoS Calculator.

GHS Hazard Classification

Globally Harmonized System classification per ECHA C&L inventory and ILO/WHO International Chemical Safety Cards.

Short-term Exposure Effects
The substance is irritating to the eyes.
Long-term Exposure Effects
Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the thyroid. This substance is possibly carcinogenic to humans.
Routes of Exposure
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

Expert Verdict

🚫 BANNED in EU (Annex II \#321); CMR concerns; thyroid disruption/goitrogenic; contact sensitizer; IARC Group 3; DO NOT FORMULATE

⚠️
Concern Level: High

Regulatory Flags

potential-allergen prop65 eu_banned_cosmetics fda_food_additive eu_cosing_listed

Frequently Asked Questions

Is Thiourea ⚠️ safe in cosmetics?

🚫 BANNED in EU (Annex II \#321); CMR concerns; thyroid disruption/goitrogenic; contact sensitizer; IARC Group 3; DO NOT FORMULATE The EU classifies Thiourea ⚠️ as "prohibited". Safety rating: POOR.

Is Thiourea ⚠️ allowed in the EU?

Thiourea ⚠️ EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Thiourea ⚠️ do in cosmetics?

Thiourea ⚠️ functions as: Historically: Depilatory, Reducing Agent — NOW PROHIBITED. It is classified as a cosmetic ingredient in our database. CAS number: 62-56-6.

What is the Margin of Safety for Thiourea ⚠️?

not established 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.

Compliance Tools

Check Thiourea ⚠️ compliance across multiple jurisdictions:

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Ingredient Decoder
Paste a full ingredient list for instant analysis
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82 Allergen Checker
Check for EU declarable fragrance allergens
 🧪
Substance Compliance
Check compliance across 55 jurisdictions
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
 ⚗️
Heavy Metal Limits
Compare limits across jurisdictions

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