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HEPTANE.

Avoid CAS 142-82-5 / SOLVENT

Heptane is a highly volatile, non-polar hydrocarbon solvent widely recognized for its ability to dissolve oils and greases. While effective as a solvent, its application in precision skincare is severely limited due to significant risks of skin defatting and acute irritation.

Solvent

Science

Operating as a non-polar solvent, Heptane effectively dissolves a broad spectrum of organic compounds, including natural skin lipids. This potent solvent action enables it to penetrate the epidermal barrier, leading to a detrimental defatting effect that compromises the skin's natural moisture and protective functions.


Research

Insufficient-data confidence
Effective range N/A
Optimal

N/A


Transparency

Commonly dusted

Heptane is classified as a skin irritant (Category 2, H315) and an aspiration hazard (Category 1, H304). Its capacity to severely defat the skin, leading to dryness, cracking, and inflammation, warrants significant concern and indicates it is unsuitable for skin contact in cosmetic formulations.


The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

Heptane is a highly flammable liquid that evaporates rapidly, leaving minimal residue. In protein-containing formulations, it may exacerbate oxidative conditions, potentially contributing to protein degradation.

Conflicts

  • Strong oxidizing agents
  • Heat, sparks, open flames, and other ignition sources

Safety

CIR Status
Not reviewed
Sensitization risk High

Classified by OSHA as a hazardous substance, n-heptane exposure can induce short-term effects such as irritation of the eyes, nose, or throat, alongside headaches, dizziness, or loss of consciousness. Prolonged skin contact demonstrably defats the skin, resulting in dryness, cracking, inflammation, and irritation. It is explicitly categorized as a skin irritant and an aspiration hazard.


Your Skin

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

Our Assessment

Avoid

Due to its significant skin irritancy, potent defatting properties, and classification as a hazardous substance, Heptane should be strictly avoided in all precision skincare formulations.


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References