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PENTAMETHYLHEPTENONE.

Avoid CAS 81786-73-4 / 81786-74-5 / PERFUMING

PENTAMETHYLHEPTENONE is a synthetic fragrance compound used to impart scent in cosmetic formulations. Despite its common application, it presents a notable risk of dermal sensitization.

Perfuming

Science

This ingredient functions exclusively as a perfuming agent, enhancing the aroma of a product or delivering fragrance to the skin. It provides no direct functional benefits to skin health or physiology.


Research

Insufficient-data confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

PENTAMETHYLHEPTENONE is a fragrance ingredient with usage restrictions, not an active ingredient prone to 'dusting' in formulations.


The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

No specific optimal pH range for stability has been identified. Its oil solubility is consistent with its intended use as a fragrance compound.


Safety

CIR Status
Not reviewed
Sensitization risk High

PENTAMETHYLHEPTENONE carries a GHS hazard statement H317, indicating it 'May cause an allergic skin reaction' (Skin Sens. 1). Its use in cosmetic products is strictly restricted by the International Fragrance Association (IFRA) across various categories due to concerns regarding dermal sensitization and potential systemic toxicity. Specific concentration limits include 0.0095% for lip products, 0.019% for face/body products applied with fingertips, 0.029% for face moisturizers, 0.10% for axillae products, and up to 1.9% in fine fragrances. It is also classified as toxic or harmful to aquatic life with long-lasting effects (H411/H412).


Your Skin

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

Our Assessment

Avoid

Due to its sole function as a fragrance ingredient, documented high risk of dermal sensitization, and lack of skin benefits, PENTAMETHYLHEPTENONE is not recommended for precision skincare formulations.


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