Iodopropynyl Butylcarbamate
يودوبروبينيل بيوتيل كرباميت
Preservative (Annex V) · INCI: Iodopropynyl Butylcarbamate · CAS: 55406-53-6
A restricted iodine-based preservative - not for young children.
Why this verdict
Annex V #56 permitted preservative: rinse-off 0.02% / leave-on 0.01% / deodorant-antiperspirant 0.0075%. NOT for children <3 (except bath/shower gel & shampoo); not in oral/lip; not in body lotion/cream.. Permitted within limits; formaldehyde-releaser/contact-allergen concern → caution.
What It Is
An iodine-releasing preservative with several use restrictions.
An effective preservative, but iodine-based and tightly restricted: banned for young children (under 3, outside wash-off products), and not allowed in body lotions/creams or lip/oral products. Worth noting for those monitoring iodine exposure.
Evidence & Status
IARC Carcinogen Group
Not classified
EU Status
Annex V #56 permitted preservative - rinse-off 0.02% / leave-on 0.01% / deodorant-antiperspirant 0.0075%. NOT for children <3 (except bath/shower gel & shampoo); not in oral/lip; not in body lotion/cream.
US · FDA Status
Preservative; CIR/SCCS-reviewed
Cosmetic Safety
EU concentration limit
Annex V #56: rinse-off 0.02% / leave-on 0.01% / deodorant-antiperspirant 0.0075%. NOT for children <3 (except bath/shower gel & shampoo); not in oral/lip; not in body lotion/cream.
EU Annex status
Annex V (preservative)
Function
preservative
Halal Status: Halal
Synthetic; halal/vegan.
Worth Knowing
Primary Source
Evidence, not medical advice. You decide.
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