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2,6-DIMETHYLHEPTA-1,5-DIENE.

Optional CAS 6709-39-3 / PERFUMING

A terpene-like hydrocarbon compound primarily employed as a fragrance ingredient to deliver fresh, green, melon-like scent profiles in skincare formulations. While its main role is olfactory enhancement, its non-polar structure allows for minor interactions with skin's lipid barriers.

Perfuming

Science

Functions predominantly as a perfuming agent delivering cucumber and melon-like aromatic notes. Its non-polar hydrocarbon structure may provide minimal penetration enhancement by interacting with intercellular lipid bilayers, though this is not its primary therapeutic application.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

As a specialized fragrance component with limited skincare benefits, this ingredient is rarely emphasized in marketing claims or product positioning.


The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Exhibits high air sensitivity and oxidation susceptibility due to conjugated diene structure. Requires antioxidant stabilization with BHT or Tocopherol. Isomerization risk increases significantly above 35°C storage temperatures.

Synergies

  • BHT
  • Tocopherol
  • Other antioxidants

Conflicts

  • Strong oxidizing agents
  • Heat exposure
  • UV light

Safety

CIR Status
Not reviewed
Sensitization risk Low

Classified under terpene hydrocarbon category and follows IFRA fragrance material standards. Listed as inactive on EPA TSCA inventory with irritant classification (Hazard Code Xi) in concentrated forms.


Your Skin

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

Our Assessment

Optional

A specialized fragrance ingredient with limited skincare benefits beyond sensory enhancement and potential minor penetration assistance.


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References