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BICYCLOHEPTENYLETHANONE OXIME.

Optional CAS 65416-21-9 / PERFUMING

A sophisticated synthetic masking agent and fragrance component specifically engineered to refine the olfactory profile of skincare formulations. It is most frequently utilized to neutralize the pungent natural aromas associated with bio-fermented ingredients like sake and yeast filtrates.

Masking Perfuming Sensorial Enhancement

Science

This ingredient functions as a sensorial stabilizer rather than a bioactive agent. It works by masking the malodors produced during the fermentation of raw materials, ensuring that high-performance fermented actives can be used in elegant formulations without their characteristic sharp or sour scents.


Research

Low confidence
Effective range 0.01–1%
Optimal

1%


Transparency

Not commonly dusted
Min. effective
0.05%
Red flag below
0.01%

As a fragrance and masking agent, this ingredient is used in very small quantities to achieve its effect. While it is not a 'star' active that brands typically over-claim, a concentration below 0.05% may be insufficient to mask strong fermentation odors.


The Formula

Solubility
Oil
Optimal pH 5 – 9
0 7 14

Stability

Exhibits superior stability in aqueous environments compared to other nitrogen-based bonds like imines. It remains stable at physiological pH but is susceptible to hydrolysis in highly acidic environments below pH 3.0.

Synergies

  • Galactomyces Ferment Filtrate
  • Saccharomyces Ferment
  • Bifida Ferment Lysate

Conflicts

  • Strong oxidizing agents
  • Low pH exfoliating acids (pH < 3.0)

Safety

CIR Status
Not reviewed
Max tested
1%
Sensitization risk Low

Verified as a safe fragrance component by IFRA and RIFM standards. It is not currently evaluated by the CIR for topical skin-active benefits.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Unknown

Our Assessment

Optional

An essential sensorial tool for high-performance fermented skincare, providing a neutral olfactory experience without affecting formula potency.


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