Abstract:
Process for improving and modifying the properties of living human hair which comprises subjecting the hair to stretching by mechanical deformation, and converting from 10 to 50% of the cystine in the hair to lanthionine. The conversion is accomplished in an aqueous medium with an alkaline composition.
Abstract:
Compositions for setting hair containing a bivalent metal dithiolate derivative having at least one N-methylol group and the process of treating human hair with these compositions.
Abstract:
A process for dyeing keratinous fibres wherein a composition (a) having a pH from 2 to 10 comprising, in a medium suitable for dyeing, a metal-containing anion (e.g. MnO4 or Cr2O7 ) exhibiting good affinity for keratin and having a redox potential higher than that of a compound of formula (I) defined below; and a composition (b) having a pH of from 7 to 10 comprising, in a medium suitable for dyeing, a compound of formula (I> in which R1 and R2, independently of each other, are hydrogen, methyl or ethyl are sequentially applied to the fibres.
Abstract:
A deodorant composition which prevents the formation of unpleasant odors due to bacterial decomposition of perspiration comprises a cosmetic carrier and, as the active component, a mixture of at least one weak organic acid and at least one salt of a weak organic acid and an aminated organic compound. The composition on application to the desired area of the body maintains the pH of the perspiration at a value of about 3 to 6.
Abstract:
A deodorant composition which prevents the formation of unpleasant odors due to bacterial decomposition of perspiration comprises a cosmetic carrier and, as the active component, a mixture of at least one weak organic acid and at least one salt of a weak organic acid and an aminated organic compound. The composition on application to the desired area of the body maintains the pH of the perspiration at a value of about 3 to 6.
Abstract:
Process for improving and modifying the cosmetic properties of living human hair comprising transforming about 25 to 70% of the cystine in hair that is not subjected to any extension stress into lanthionine. The process is carried out with an aqueous medium having a pH between about 10.5 and 13 containing at least one alkali or alkaline earth metal hydroxide.