Ingredient Directory
Medium ConcernVegan Evaluator Flag

Iodopropynyl Butylcarbamate

3-Iodo-2-propynyl butylcarbamate

Safety Flags
Allergen: Yes
Safety Notes

Potent antifungal preservative; iodine-releasing compound; thyroid concerns with excessive exposure; EU prohibits use in products for children under 3 years and in lip/oral products; known sensitizer at higher concentrations.

Function & Common Use

Function

Preservative, Antifungal

Category

Preservatives

Common In

Leave-on skincare, moisturizers, hair care products, wipes

Origin

Synthetic

Concentration Limits

India (CDSCO)

0.02%

EU Cosmetics Reg.

0.02% (rinse-off except bath products); 0.01% (leave-on face products); 0.0075% (body lotion/cream); not to be used in products for children under 3; not in oral hygiene or lip products

US FDA (21 CFR)

0.1% (leave-on); 0.02% (rinse-off products)

Korea (MFDS)

0.02%

Format restriction: EU: not to be used in body lotions and creams for children under 3 years old; not in oral hygiene products; not in lip products; concentration varies significantly by product type

Baby restriction: Yes

Pregnancy: No

IFRA: No

Frequently Asked Questions

Is Iodopropynyl Butylcarbamate safe to use in skincare?

Iodopropynyl Butylcarbamate has a Medium concern rating. Potent antifungal preservative; iodine-releasing compound; thyroid concerns with excessive exposure; EU prohibits use in products for children under 3 years and in lip/oral products; known sensitizer at higher concentrations.

Is Iodopropynyl Butylcarbamate allowed in India?

Iodopropynyl Butylcarbamate is currently classified as "Permitted" under Indian cosmetics regulations. The maximum permitted concentration is 0.02%.

What is Iodopropynyl Butylcarbamate used for in cosmetics?

Iodopropynyl Butylcarbamate functions as: Preservative, Antifungal. It is commonly found in: Leave-on skincare, moisturizers, hair care products, wipes.

Can Iodopropynyl Butylcarbamate cause an allergic reaction?

Yes. Iodopropynyl Butylcarbamate has an allergen flag (Yes). If you have sensitive skin or known fragrance/contact allergies, patch-test products containing this ingredient before full use.

Is Iodopropynyl Butylcarbamate safe for babies?

Iodopropynyl Butylcarbamate has baby/child restrictions: Yes. Avoid using products containing this ingredient on infants unless specifically formulated and labelled for baby use.

TCS Assessment
Medium Concern
Data Confidence
High
Based on peer-reviewed safety data, regulatory status, and expert review by The Clean Sheet panel.

Regulatory Status

India (CDSCO)
Permitted
EU
Restricted
US FDA
Permitted
Korea (MFDS)
Permitted
Australia (TGA)
Permitted
Canada (NHPID)
Permitted

EU Annex: Annex V (permitted preservative) with restrictions

Identifiers

CAS55406-53-6
EC259-627-5

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