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TRIMETHYL-3-CYCLOHEXENE-1-METHANETHIOL.

Questionable CAS 71159-90-5 / PERFUMING

TRIMETHYL-3-CYCLOHEXENE-1-METHANETHIOL is a fragrance compound utilized solely for its aromatic properties in cosmetic formulations. Despite its common usage to enhance product scent, it lacks direct skin benefits and presents notable safety concerns including potential irritation.

Fragrance

Science

This compound functions exclusively as a fragrance ingredient, primarily to enhance or mask the scent of a product, or to perfume the skin. It does not exert any known active mechanisms that directly contribute to skin health or function.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Unknown
Optimal pH N/A
0 7 14

Stability

Formulators should be aware that this ingredient may present aesthetic or stability challenges that could limit its overall usefulness in certain product types.


Safety

CIR Status
Not reviewed
Sensitization risk Moderate

The Cosmetic Ingredient Review (CIR) has not evaluated this ingredient. While FDA status pertains to its use as a food additive with limited toxicity information, EWG highlights concerns including low-to-moderate non-reproductive organ system toxicity, cumulative exposure from multiple sources, and low ecotoxicity. There is a documented likelihood of skin irritation, which may intensify when combined with other potentially problematic ingredients.


Your Skin

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

Our Assessment

Questionable

Its role as a purely aesthetic fragrance, coupled with an unreviewed safety profile, reported irritation likelihood, and absence of skin benefits, positions TRIMETHYL-3-CYCLOHEXENE-1-METHANETHIOL as a questionable inclusion for precision skincare formulations.


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