Abstract: A cosmetic composition capable of temporarily modifying the colour of the hair, of the type containing: a cosmetically acceptable solvent which comprises at least one alcohol; at least one pigment chosen from metal oxides and hydroxides, in particular iron(II) oxides and hydroxides, iron(III) oxides and hydroxides, mixtures of at least two of said iron(II) or (III) oxides or hydroxides, in particular mixtures of at least two iron(II) and/or iron(III) oxides, mixture(s) of at least two iron(II) and/or iron(III) hydroxides, mixtures of at least one iron(II) or iron(III) oxide with at least one iron(II) or iron(III) hydroxide, and mixtures of at least one iron(II) or iron(III) oxide and/or at least one iron(II) or (III) hydroxide with titanium dioxide; and at least one polymer for fixing said pigment. The pigment is capable of giving the hair a natural colour and in particular of covering white hair and said composition is liquid.

Abstract: A method for producing catalytic antibodies to proteins and peptides, in particular to gp120, using animals having spontaneous and induced autoimmune pathologies. The method makes it possible to create a catalytic vaccine which can when injected to a patient to exhibits adhesive properties in relation to antigen simultaneously with a destructive function, thereby suspending the progression of disease. The method for the autoimmunisation of animal lines SJL by fused proteins containing classical peptide epitope which develops pathology of an animal by protein fragments gp120 accompanied with an interest target catalytic antibody is disclosed. Also the method for immunising autoimmune animals by highly reactive chemical compositions which can perform a covalent selection of catalytic clones containing peptide fragments of potential resected portions gp120 is disclosed.