Regulatory Status
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Safety Data
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Expert Verdict
Data gap with less safety substantiation than 4-n-Butylresorcinol or Phenylethyl Resorcinol; formulator bears full responsibility per Article 10 safety assessment requirements; resorcinol-class endocrine concerns apply.
Frequently Asked Questions
Is 4-Isobutylresorcinol safe in cosmetics?
Data gap with less safety substantiation than 4-n-Butylresorcinol or Phenylethyl Resorcinol; formulator bears full responsibility per Article 10 safety assessment requirements; resorcinol-class endocrine concerns apply. The EU classifies 4-Isobutylresorcinol as "prohibited". Safety rating: MODERATE.
Is 4-Isobutylresorcinol allowed in the EU?
4-Isobutylresorcinol EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.
What does 4-Isobutylresorcinol do in cosmetics?
4-Isobutylresorcinol functions as: Skin lightening / tyrosinase inhibition. It is classified as a cosmetic ingredient in our database. CAS number: Not confirmed in my search (distinct from 4-Butylresorcinol CAS 18979-61-8).
What is the Margin of Safety for 4-Isobutylresorcinol?
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
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Related Ingredients
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