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Moumoujus

ALLYL ALPHA-IONONE.

Optional CAS 79-78-7 / PERFUMING

Allyl alpha-ionone is a synthetic fragrance ingredient recognized for its distinctive tropical, fruity, and floral aroma. It is primarily utilized in cosmetic formulations to impart a pleasant scent or to effectively mask undesirable odors.

Summary

perfuming

Science

Mechanism of Action

This pseudoionone functions solely as an organoleptic agent, providing its characteristic aroma through specific chemical interactions. While its lipophilic nature suggests potential for skin absorption, it offers no direct biological or skin-corrective mechanisms.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH 4 – 7
0 7 14

Stability

Stable in perfumes and various functional cosmetic bases, but degrades in highly alkaline environments or in the presence of antiperspirant salts.

Conflicts

  • Alkaline environments
  • Strong oxidizing agents
  • Antiperspirant salts

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
0.32%
Sensitization risk Moderate

Regulated by IFRA Standards, limiting its concentration to 0.32% on skin in fine fragrances due to its potential as a skin sensitizer; classified as an irritant by ECHA.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
No Sensitive
Irritancy Moderate
Comedogenicity Unknown

Our Assessment

Verdict

Optional

Allyl alpha-ionone is an optional fragrance ingredient that provides a distinct tropical aroma, but its use requires careful formulation to mitigate moderate sensitization risk, especially for sensitive skin types.

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