Science
Mechanism of Action
Homonopal functions by releasing a complex aromatic profile, characterized by green, floral, aldehydic, and fresh notes, to enhance the sensory experience of a product. It does not possess an active mechanism to benefit skin physiology or health.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
Homonopal is primarily a fragrance ingredient; therefore, the concept of 'dusting' related to sub-efficacious active ingredient concentrations does not apply.
The Formula
Formulation
Stability
Stabilized with tocopherol, Homonopal generally exhibits good stability in various personal care formulations like shampoos and soaps. However, it demonstrates poor stability when exposed to bleaching agents. Optimal storage involves refrigeration in a tightly closed, light-protected container in a cool, dry environment.
Conflicts
- Bleaching agents (poor stability)
- May form diethylacetals in alcoholic perfumes (minimal impact on scent)
- May form Schiff bases with nitrogen-containing molecules (e.g., Methyl Anthranilate, Indol)
Safety
Safety Profile
Homonopal (Pinoacetaldehyde) is classified as Reprotoxic category 1B and presents a high risk for skin sensitization. An April 2025 Assessment of Regulatory Needs (ARN) by the European Chemicals Agency (ECHA) anticipates potential generic restrictions in consumer mixtures, which could lead to its complete phase-out from cosmetic formulations under EC No 1223/2009.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Due to its classification as Reprotoxic category 1B, high skin sensitization potential, and imminent regulatory restrictions in consumer cosmetics, Homonopal is an ingredient Moumoujus would unequivocally avoid.
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