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UNDECYL ALCOHOL.

Insufficient Data CAS 112-42-5 / ANTI-SEBUM, FRAGRANCE, SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, VISCOSITY CONTROLLING

Undecyl alcohol is a long-chain fatty alcohol characterized by its multi-functional role in skin conditioning. It acts as an emollient to smooth skin texture and contributes to sebum regulation, while also forming a protective layer to prevent moisture loss. However, its application demands careful consideration due to conflicting irritancy data and a current lack of comprehensive safety review by regulatory bodies.

Skin Conditioning Emollient Antiseborrhoeic Moisture Barrier Support Absorption Enhancer Masking Agent Viscosity Control

Science

Undecyl alcohol functions primarily as a skin conditioning agent, improving overall skin quality through its emollient properties that soften and smooth the surface. It aids in maintaining skin hydration by establishing a protective barrier that reduces transepidermal water loss. Additionally, this ingredient demonstrates anti-sebum activity, which helps to mitigate excessive oil production, and its inherent oily nature may also enhance the dermal absorption of other active compounds in a formulation.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Undecyl alcohol exhibits inherent stability. However, its use in certain aroma oils and fragrances may be constrained by its tendency to solidify at lower temperatures.

Synergies

  • Enhances the skin absorption of other active ingredients

Conflicts

  • strong oxidizing agents
  • strong acids

Safety

CIR Status
Not reviewed
Max tested
4%
Sensitization risk Moderate

While recognized as a FEMA flavoring agent in foods, suggesting a degree of safety for ingestion, its topical safety profile presents nuanced considerations. Undecyl alcohol has been reported as a potential skin, eye, and lung irritant, capable of defatting the skin which could lead to dryness or cracking. Conversely, it is also noted for a 'non-irritating nature' when incorporated into sensitive skin formulations, indicating that its irritancy is likely concentration-dependent. A comprehensive safety assessment by the CIR is currently unavailable.


Your Skin

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

Our Assessment

Insufficient Data

Undecyl alcohol offers beneficial skin conditioning, emollient, and anti-sebum properties; however, its precise utility for a precision skincare brand is limited by an absence of comprehensive clinical efficacy data, unreviewed safety by the CIR, and conflicting reports regarding its irritancy potential.


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