EGF-mimicking Peptides and Other Topics

By: Charles Fox, Independent Consultant

Posted: January 5, 2009, from the January 2009 issue of Cosmetics & Toiletries.

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Also disclosed is a method for suppressing the increase in an acid value of a phospholipid by employing a composition comprising a phospholipid having a high iodine value, ethanol at a high concentration, and water. An example is shown in Formula 4.

Hair and Hair Care

Fast coloration of hair fibers: A L'Oreal patent discloses a hair dyeing process using a dye of styryl or imine type in combination with a weak acid and device for implementing the process.¹⁰ The dye composition comprises at least one dye of styryl or imine type in the presence of a revealing composition containing at least one optionally substituted aromatic compound of a weak acid type. Also disclosed is a device suitable for implementing said process.

This invention makes it possible in particular to obtain a chromatic and fast coloration of keratin fibers. This coloration is visible even on dark hair without prior lightening. It also makes it possible to obtain a coloration that, under certain conditions, does not stain. Formula 5 shows an example of such a hair dye that was applied on the hair for 30 min followed by application of a composition containing 9.40% gallic acid monohydrate, a sodium hydroxide solution qs to pH 3, and water qs to 100%, then rinsed and dried.

Manageability treatment: Unilever discloses a composition containing cucurbitine that is particularly suitable for the treatment of hair that is dry, damaged or prone to manageability challenges.¹¹ From 0.001% to 20% of the total composition is drawn from the group consisting of cucurbitine, 2-piperazine-carboxylic acid, derivatives thereof or mixtures thereof. An example is shown in Formula 6.