What does Alpha-Isomethyl ionone do?
In cosmetics and personal care products, Alpha-Isomethyl Ionone is used in the formulation of aftershave lotions, bath products, bubble baths, hair care products, moisturizers, perfumes and colognes, shampoos and skin care products. Alpha-Isomethyl Ionone is used as a fragrance ingredient .
Is Alpha-Isomethyl ionone safe for skin?
alpha-Isomethyl-ionone is a thoroughly evaluated and commonly used fragrance ingredient. It has been identified by European Union scientific bodies as a potential skin sensitizer. This means that alpha-isomethyl-ionone has the potential to cause a skin reaction (such as red, bumpy, or itchy skin).
What does Alpha-Isomethyl ionone smell like?
Alpha-isomethyl ionone (or Methyl Ionone) is a colorless fragrance material with a powdery, woody and floral scent, very similar to violet and orris.
Is Alpha Isomethyl ionone harmful?
Environmental hazards The European Chemicals Agency (ECHA) identifies alpha-isomethyl ionone as a substance that is “toxic to aquatic life with long lasting effects.”
What is geraniol used for in cosmetics?
In cosmetics and personal care products, Geraniol is used in the formulation of aftershave lotions, bath products, bubble baths, hair products, lipsticks, moisturizers, perfumes and colognes, skin care products and suntan products. Geraniol functions as a fragrance ingredient .
What is methyl ionone used for?
Alpha isomethyl ionone — sometimes called isomethylionone — is a fragrance sometimes used in cosmetics and household cleaning products — for instance in soaps, hair care products, perfumes, fabric conditioners and detergents.
Is limonene good for skin?
Like most volatile fragrance components, limonene also has strong antioxidant benefits and has also been shown to calm skin; however, when exposed to air these highly volatile antioxidant compounds oxidize and become capable of sensitizing skin.
Is Alpha Isomethyl ionone toxic?
The European Chemicals Agency (ECHA) identifies alpha-isomethyl ionone as a substance that is “toxic to aquatic life with long lasting effects.”
Is Alpha Isomethyl ionone banned anywhere?
The European Chemicals Agency (ECHA) identifies alpha-isomethyl ionone as a substance that is “toxic to aquatic life with long lasting effects.” Alpha-isomethyl ionone is restricted for use in cosmetic products in the EU by CosIng.
Why is geraniol bad for skin?
A volatile fragrance ingredient extracted from geranium, geraniol is capable of causing sensitivity when applied to skin. Despite the lesser concern, research has shown that, like many fragrant oil components, geraniol can oxidize in the presence of air, causing damage when appied to skin’s surface.
Why is geraniol bad?
Studies have reported that geraniol had the potential to autoxidize upon air exposure. This means that when products containing geraniol are applied to the skin, the exposure to air causes the unstable geraniol molecule to oxidize, which is believed to trigger the associated irritation on the skin.
Is Alpha Isomethyl ionone a preservative?
Alpha isomethyl ionone is a fragrance, isothiazolinones are preservatives, the two chemical families are not related, and from an MI-allergy perspective, it is definitely not an isothiazolinone preservative and accordingly should not cause so-called cross reactions.
What kind of liquid is alpha isomethyl ionone?
Alpha-isomethyl ionone is a synthetically made and naturally occurring organic compound found in Brewer’s yeasts or the species known as Saccharomyces cerevisiae. The compound is an isomer of methyl ionone. Alpha-isomethyl ionone can be colorless or pale-straw coloured liquid. Its primary scent is flowery and secondary scent is violet.
Is it safe to use alpha isomethyl ionone?
The Flavor and Extract Manufacturers Association Expert Panel has reviewed the safety of Alpha-Isomethyl Ionone and determined that it was Generally Recognized as Safe ( GRAS) for use as a flavoring substance. In Europe, Alpha-Isomethyl Ionone is included on the list of “allergenic” substances.
How is the synthesis of Alpha isomethyl ionone done?
The synthesis of alpha-isomethyl ionone involves a cross- aldol condensation of citral with methyl ethyl ketone A high temperature and strong alkali is used. The ratio between the n-form and iso-form is controlled in order to obtain methyl pseudo-ionone and allow ring formation to occur.
What is the pKa of Alpha isomethyl ionone?
Alpha-isomethyl ionone consists of terpenes with three consecutive isoprene units. They are extremely weak base. Its pKa value (strongest acidic) is 19.7 and its pKa value (strongest basic) is -4.8. The percentage of alpha-isomethyl ionone used in perfumes is approximately ranging from 0.1% to 11.9%, with an average of 1.1%.