Science
Mechanism of Action
As a monoterpene, Trans,trans-Allo-ocimene is hypothesized to function as a skin penetration enhancer. Its proposed action involves interacting with and disrupting the cholesterol-rich lipid membranes within the stratum corneum, the outermost layer of the skin. This interaction is believed to alter the integrity of the skin barrier, facilitating increased diffusivity and uptake of co-formulated compounds.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Conflicts
- Potential for skin irritation and sensitization in finished formulations.
Safety
Safety Profile
Trans,trans-Allo-ocimene carries notable safety concerns. GHS classifications indicate it is harmful if swallowed (H302), potentially fatal if swallowed and enters airways (H304), causes skin irritation (H315), may cause an allergic skin reaction (H317), and causes serious eye irritation (H319). European classifications also label it as harmful (Xn) and identify a risk of sensitization by skin contact (R 43). While registered with the FDA Global Substance Registration System (UNII: 6TF53L340E), specific cosmetic approval like GRAS (Generally Recognized As Safe) was not found. The International Fragrance Association (IFRA) recommends usage levels up to 4.0000% in fragrance concentrates.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While Trans,trans-Allo-ocimene presents a theoretical mechanism for enhancing skin penetration, its significant documented risks of skin irritation and sensitization, coupled with a lack of dedicated clinical efficacy studies in skincare, renders its utility highly questionable for precision formulations.
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References
Sources