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CIS-2-METHYL-4-PROPYL-1,3-OXATHIANE.

Optional CAS 59323-76-1 / PERFUMING

CIS-2-METHYL-4-PROPYL-1,3-OXATHIANE is a synthetic molecule primarily valued for its aromatic properties, which also offers skin-conditioning benefits in cosmetic formulations. It contributes to enhancing the sensory experience and feel of skincare products.

Skin Conditioning Fragrance

Science

This ingredient functions by being incorporated into cosmetic matrices, where it imparts skin-conditioning properties. This action helps to improve the overall texture and tactile sensation of formulations such as lotions and creams, contributing to a more pleasant application experience.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

Data regarding dusting analysis for this ingredient is not available.


The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

The ingredient exhibits good to very good stability in body lotion, shampoo, and soap. However, its stability is compromised (poor) in formulations such as AP roll-ons, powders, citric acid-based cleaners, and bleach.


Safety

CIR Status
Safe as used
Max tested
0.069%
Sensitization risk Low

The Research Institute for Fragrance Materials (RIFM) Expert Panel has determined that this compound, including its cis isomer, does not pose a skin sensitization risk at current declared use levels. It has been confirmed as non-genotoxic and non-phototoxic/photoallergenic. A maximum acceptable concentration of 0.069% is established for products applied to the lips (IFRA Category 1), based on its non-reactive Dose-Response Threshold. It is important to note that the raw material itself is classified as potentially irritating to the eyes, respiratory system, and skin, and is flammable.


Your Skin

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

Our Assessment

Optional

This ingredient is optional for formulations where a specific fragrance profile is desired alongside mild skin-conditioning properties, exhibiting a favorable safety profile at appropriate concentrations despite limited dedicated clinical efficacy studies.


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