5-METHYL-ALPHA-IONONE ●
TL;DR. This ingredient is a fragrance component used to give products a powdery, floral, woody scent profile. It is typically used as part of a perfume blend rather than as a functional skin-care active.
What does 5-METHYL-ALPHA-IONONE do in a cosmetic formula?
This ingredient is a fragrance component used to give products a powdery, floral, woody scent profile. It is typically used as part of a perfume blend rather than as a functional skin-care active.
Is 5-METHYL-ALPHA-IONONE clean?
From a clean-beauty perspective, this ingredient has friction because it is a recognized fragrance allergen and may require label disclosure in some regions above set thresholds. It is generally managed through IFRA limits and careful concentration control.
Is 5-METHYL-ALPHA-IONONE sustainable?
This material is commonly made through synthetic fragrance chemistry, often from petrochemical or mixed feedstocks. It is not known as a high-persistence silicone or fluorinated material, but its sustainability profile depends on feedstock source, manufacturing controls, and wastewater handling.
Is 5-METHYL-ALPHA-IONONE COSMOS-approved?
It is not generally aligned with COSMOS-organic or COSMOS-natural unless supplied as a compliant natural aromatic material under the standard’s fragrance rules. From a Green Chemistry lens, it is a compact, high-impact scent molecule, but synthetic sourcing and allergen management keep it from a green-tier profile.
How does 5-METHYL-ALPHA-IONONE work chemically?
The molecule is a methylated unsaturated cyclic ketone with a conjugated structure that gives strong odor performance at very low levels. In finished products it is usually present as a small fraction of the total fragrance, and stability is generally good in typical anhydrous or emulsion systems, though fragrance blends are commonly protected from heat, light, and air to limit oxidation.
Last updated 2026-05-15