Science
Mechanism of Action
As a fatty alcohol, heptanol interacts with the lipid matrix of the stratum corneum, the outermost layer of the skin. This interaction can modify the skin's barrier function, potentially increasing the penetration of other ingredients.
Research
Clinical Evidence
Low confidenceN/A
Key findings
- 01 A study investigating saturated fatty alcohols, including those structurally similar to heptanol, utilized a 5% w/v concentration (as part of a fatty alcohol mixture) on hairless rat skin. This research identified an increase in transepidermal water loss (TEWL) and skin blood flow, suggesting that its permeation enhancing properties may induce skin irritation, particularly at higher concentrations.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Heptanol is stable under typical conditions but is a flammable substance, requiring storage below +30°C to maintain integrity and safety.
Conflicts
- Strong acids
- Strong oxidizing agents
- Alkali metals
- Nitrides
- Strong reducing agents
- Oxoacids and carboxylic acids (forms esters plus water)
- Isocyanates and epoxides (may initiate polymerization)
Safety
Safety Profile
There is no specific Cosmetic Ingredient Review (CIR) or SCCS assessment for heptanol. The FDA has approved it for limited use as a flavoring agent in food. Generally, it is characterized as a combustible liquid and has been found to cause serious eye irritation. While considered mildly irritating to human skin, European safety data indicates it can be harmful via inhalation, skin contact, or ingestion, and is detrimental to aquatic life.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Heptanol primarily serves as a fragrance, but its capacity as a skin permeation enhancer is associated with potential irritation and increased transepidermal water loss, raising concerns for use in precision skincare.
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