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DIMETHYL DECADIENAL.

Questionable CAS 762-26-5 / FRAGRANCE, PERFUMING

Dimethyl Decadienal is an aromatic aldehyde primarily utilized in cosmetic formulations for its perfuming properties. It does not offer direct active skincare benefits, serving instead to impart a scent profile to products.

Perfuming

Science

This ingredient functions solely as a fragrance agent, contributing to the olfactory profile of a cosmetic product. There is no identified specific mechanism of action that confers active benefits to the skin.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

As a component primarily for fragrance, Dimethyl Decadienal is not typically assessed for 'dusting' in the context of active ingredient efficacy thresholds.


The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

The ingredient, also known as 'marine decadienal geraldehyde,' demonstrates stability across a range of formulations including alcoholic lotions, antiperspirants, deodorants, fabric softeners, shampoos, and soaps.


Safety

CIR Status
Insufficient data
Max tested
0.76%
Sensitization risk Moderate

Safety assessments by RIFM indicate no concern for genetic toxicity. However, GHS classification data reports that it may induce an allergic skin reaction in approximately 14.8% of reported cases. The International Fragrance Association (IFRA) has established restriction limits due to concerns regarding dermal sensitization and systemic toxicity: 0.074% for products applied to the face/body with fingertips, 0.15% for face moisturizers, and 0.76% for body lotions. While the FDA lists it as 'Approved' under 'Other Sources' (likely for flavor/fragrance), the 'quality' is noted as 'Unknown'.


Your Skin

No Normal
No Dry
No Oily
No Sensitive
Irritancy Medium
Comedogenicity Unknown

Our Assessment

Questionable

Dimethyl Decadienal functions exclusively as a perfuming agent without providing active skincare benefits and carries a moderate risk of dermal sensitization, making its inclusion in precision skincare formulations questionable.


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