Multimineral no-mix relaxer
AssigneeL'oreal
InventorsAdu Gyamfi Darkwa, Eric Osei-Acquah, Angela D. Ellington
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Abstract
The present invention relates to a no-mix hair relaxer formulation and methods of its use. The relaxer includes a synergistic combination of sodium hydroxide and lithium hydroxide and has a pH of between about 12.7 and about 13.2. These no-mix hair relaxers provide excellent hair straightening performance, in 30 minutes or less, with reduced irritation.
Claims10
A no-mix hair relaxer formulation comprising:
- LiOH in an amount of between about 0.74% and about 1.53% by weight of the formulation, NaOH in an amount of between about 0.11% and about 1.23% by weight of the formulation, said hydroxides mixed with at least one cosmetically acceptable additive comprising an emulsifier and Ca(OH)2, said formulation having a pH in a range of greater than 12.7 to about 13.2 and wherein Ca(OH)2 is present in an amount of between about 0.30% and about 0.50% by weight of the formulation.
A no-mix hair relaxer formulation comprising:
- LiOH in an amount of between about 0.74% and about 1.53% by weight of the formulation, KOH in an amount which provides an equivalent amount of active hydroxide as would be provided by about 0.11% to about 1.23% of NaOH by weight of the formulation, said hydroxides mixed with at least one cosmetically acceptable additive comprising an emulsifier and Ca(OH)2, said formulation having a pH in a range of greater than 12.7 to about 13.2 and wherein Ca(OH)2 is present in an amount of between about 0.30% and about 0.50% by weight of the formulation.
A method of straightening hair on the head of a subject comprising the steps of:
- providing a hair relaxer formulation including LiOH in an amount of between about 0.74% and about 1.53% by weight of the formulation, NaOH in an amount of between about 0.11% and about 1.23% by weight of the formulation, said hydroxides mixed with at least one cosmetically acceptable additive comprising an emulsifier and Ca(OH)2, said formulation having a pH in a range of greater than 12.7 to about 13.2 and wherein Ca(OH)2 is present in an amount of between about 0.30% and about 0.50% by weight of the formulation;
- and applying said hair relaxer formulation to said subject's hair for a period not to exceed 30 minutes.
A method of straightening hair on the head of a subject comprising the steps of:
- providing a hair relaxer formulation comprising:
- LiOH in an amount of between about 0.74% and about 1.53% by weight of the formulation, KOH in an amount which provides an equivalent amount of active hydroxide as would be provided by about 0.11% to about 1.23% of NaOH by weight of the formulation, said hydroxides mixed with at least one cosmetically acceptable additive comprising an emulsifier and Ca(OH)2, said formulation having a pH in a range of greater than 12.7 to about 13.2 and wherein Ca(OH) 2 is present in an amount of between about 0.30% and about 0.50% by weight of the formulation;
- and
- applying said hair relaxer formulation to said subject's hair for a period not to exceed 30 minutes.
Dependencies are inferred from the claim text.