Poor Cosmetic Ingredient

Vinyl Cyclohexene Carboxaldehyde (HICC/Lyral®)

INCI: HYDROXYISOHEXYL 3-CYCLOHEXENE CARBOXALDEHYDE (HICC) – TRADE NAME LYRAL®

CAS Number
31906-04-4 (Hydroxyisohexyl 3-cyclohexene carboxaldehyde)
Function
Fragrance ingredient
Safety Rating
POOR

Regulatory Status

🇪🇺 EU Status prohibited
🇺🇸 US Status prohibited
US Notes Not specifically banned by FDA; however, flagged as strong sensitizer; must be declared under MoCRA fragrance allergen labeling requirements

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.

Expert Verdict

🚨 BANNED IN EU. One of the most potent fragrance allergens ever identified by SCCS. Removed from IFRA recommendations. Do NOT formulate for any EU-destined product. For US market, mandatory allergen declaration applies

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Concern Level: High

Regulatory Flags

potential-allergen fragrance-component

Frequently Asked Questions

Is Vinyl Cyclohexene Carboxaldehyde (HICC/Lyral®) safe in cosmetics?

🚨 BANNED IN EU. One of the most potent fragrance allergens ever identified by SCCS. Removed from IFRA recommendations. Do NOT formulate for any EU-destined product. For US market, mandatory allergen declaration applies The EU classifies Vinyl Cyclohexene Carboxaldehyde (HICC/Lyral®) as "prohibited". Safety rating: POOR.

Is Vinyl Cyclohexene Carboxaldehyde (HICC/Lyral®) allowed in the EU?

Vinyl Cyclohexene Carboxaldehyde (HICC/Lyral®) EU regulatory status: prohibited. This is based on EU Regulation 1223/2009 and its amendments.

What does Vinyl Cyclohexene Carboxaldehyde (HICC/Lyral®) do in cosmetics?

Vinyl Cyclohexene Carboxaldehyde (HICC/Lyral®) functions as: Fragrance ingredient. It is classified as a cosmetic ingredient in our database. CAS number: 31906-04-4 (Hydroxyisohexyl 3-cyclohexene carboxaldehyde).

What is the Margin of Safety for Vinyl Cyclohexene Carboxaldehyde (HICC/Lyral®)?

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 Vinyl Cyclohexene Carboxaldehyde (HICC/Lyral®) compliance across multiple jurisdictions:

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Ingredient Decoder
Paste a full ingredient list for instant analysis
 🌸
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
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Heavy Metal Limits
Compare limits across jurisdictions

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