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2-HEXENOL.

Optional CAS 2305-21-7 / PERFUMING

A volatile alcohol compound primarily used as a fragrance ingredient to impart fresh, green, leafy notes to skincare formulations. This organic compound exists in both cis and trans forms and serves exclusively as a scent additive rather than providing direct skin benefits. Its primary value lies in creating pleasant sensory experiences in cosmetic products.

perfuming

Science

Functions as a volatile organic compound that evaporates from the skin surface to deliver immediate top-note fragrance profiles with characteristic green and leafy scent properties, without documented physiological effects on skin health or function.


Research

Medium confidence
Effective range 0.1–1%
Optimal

0.1%

Key findings

  1. 01 Optimal concentration for fragrance delivery providing green leafy notes without overwhelming other components

Transparency

Not commonly dusted

As a specialty fragrance component with limited functional benefits beyond scent, this ingredient is not commonly used for marketing purposes or product dusting.


The Formula

Solubility
Both
Optimal pH 5 – 7
0 7 14

Stability

Maintains stability under standard cosmetic storage conditions but requires protection from air and light exposure to prevent oxidation to 2-hexenal; demonstrates high solubility in alcohols and oils with limited water solubility

Conflicts

  • Strong oxidizing agents
  • Strong acids
  • Strong bases

Safety

CIR Status
Not reviewed
Max tested
1%
Sensitization risk Moderate

Recognized by RIFM and IFRA as fragrance ingredient; classified as irritant in concentrated forms; potential contact allergen but with lower potency than related aldehydes


Your Skin

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

Our Assessment

Optional

A specialized fragrance ingredient with moderate irritation potential that adds sensory appeal but no functional skin benefits.


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