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PENTADECANE.

Valuable CAS 629-62-9 / PERFUMING

Pentadecane is a straight-chain alkane utilized in precision skincare for its multi-functional properties, primarily acting as an emollient to enhance skin texture and a solvent to optimize formula stability and ingredient distribution.

Emollient Solvent Texture Enhancer Spreading Agent

Science

On the skin, pentadecane functions as an emollient by forming a protective barrier that effectively locks in moisture, thereby softening and smoothing the skin's surface. Its hydrophobic nature allows it to dissolve other ingredients within cosmetic formulations, ensuring uniform distribution and product integrity. Additionally, it enhances the aesthetic and functional properties of products by improving their texture and spreadability.


Research

Low confidence
Effective range 1–50%
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Oil
Optimal pH 3 – 7
0 7 14

Stability

Pentadecane maintains stability within a pH range of 3 to 7 and under standard storage conditions. However, temperatures exceeding 80°C should be strictly avoided to preserve its integrity.

Conflicts

  • Strong oxidizing agents

Safety

CIR Status
Not reviewed
Max tested
50%
Sensitization risk Low

Pentadecane is recognized by major regulatory systems, including the FDA's Global Substance Registration System and the EPA's TSCA. While generally not considered toxic, direct contact (skin, eyes, ingestion, inhalation) is deemed slightly hazardous, necessitating protective equipment during handling. Rabbit studies following OECD Test Guidelines 404 and 405 demonstrated no skin or eye irritation. However, repeated exposure may lead to skin dryness or cracking, and its potential to cause irritation in specific contexts (e.g., household cleaners) has been noted.


Your Skin

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

Our Assessment

Valuable

Pentadecane is a valuable ingredient in cosmetic formulations, offering effective emollient and solvent properties with broad skin compatibility and a low risk of irritation or comedogenicity.


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