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4,8-DIMETHYL-4,9-DECADIENAL.

Optional CAS 71077-31-1 / PERFUMING

An aldehydic fragrance molecule that delivers a sophisticated lily-of-the-valley scent with fatty and green-floral undertones. This unsaturated aldehyde serves purely as a perfuming agent in cosmetic formulations, providing sensory enhancement rather than therapeutic skin benefits.

perfuming

Science

Functions exclusively as an olfactory enhancer by binding to olfactory receptors to create fragrance perception. Does not possess documented bioactive mechanisms for skin improvement, hydration, or anti-aging effects.


Research

Medium confidence
Effective range ≤0.06%
Optimal

N/A

Key findings

  1. 01 IFRA-established safety limit for leave-on facial products to prevent dermal sensitization and systemic toxicity

Transparency

Not commonly dusted

Not typically subject to dusting practices as it serves a functional perfuming role rather than active ingredient claims


The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Highly susceptible to oxidative degradation due to unsaturated aldehyde structure; requires protection from air and light exposure with proper storage conditions

Conflicts

  • strong oxidizing agents
  • strong bases

Safety

CIR Status
Not reviewed
Max tested
0.06%
Sensitization risk Moderate

IFRA-regulated with concentration limits varying by application: 0.06% for face/body leave-on products, 0.48% for rinse-off formulations, 0.02% for infant products


Your Skin

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

Our Assessment

Optional

A luxury fragrance component with moderate sensitization risk that adds olfactory appeal but provides no skin benefits.


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