Apparatus and methods for modifying keratinous surfaces
a technology of keratinous surfaces and masks, applied in the field of masks and methods for modifying keratinous surfaces, can solve the problems of inability to motivate excessively difficult and time-consuming to apply minute amounts of make-up to one's face, and inability to achieve such a limited application. , the effect of small coverage on the skin
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example 1
[0057]The following composition shown in Table 1 can be used for dyeing Piedmont hair. 100 g of the dyeing composition is mixed with 100 g of 20 volume hydrogen peroxide. The resulting mixture is applied to the hair and permitted to remain in contact with the hair for 30 minutes. The dyed hair is then shampooed, rinsed with water and dried. The ranges of ingredients set out in Table 1 are illustrative of useful concentrations of the recited materials in a hair dye product.
TABLE 1Composition for Dyeing HairIngredientsRange (wt %)Weight (%)Cocamidopropyl betaine 0-2517.00Polyquaternium-220-75.00Monoethanolamine1 0-152.00Oleic Acid 2-220.75Citric Acid0-30.1028% Ammonium hydroxide1 0-155.00Behentrimonium chloride1-50.50Sodium sulfite0-10.10EDTA0-10.10Erythorbic acid0-10.40Ethoxydiglycol 1-103.50C11-15 Pareth-9 (Tergitol 15-S-9)0.5-5 1.00C12-15 Pareth-3 (Neodol 25-3)0.25-5 0.50Isopropanol 2-104.00Propylene glycol 1-122.00p-Phenylenediamine20-52 mmolesN,N-Bis(hydroxyethyl)-p-phenylene0-...
example 2
[0060]A topical composition is prepared by combining the following components utilizing conventional mixing techniques and the pH is adjusted to 6.0 by adding NaOH.
Component% by wt.N-acetyl-L-cysteine (Active)5.0Propylene glycol45.0Ethanol30.0Water20.0
[0061]1000 .mg of the composition per 100 cm2 skin is topically applied to the face twice per day to remove unwanted vellus hair.
example 3
[0062]A topical composition is prepared by combining the following components utilizing conventional mixing techniques and the pH is adjusted to 4.5 by adding NaOH.
Component% by weightThioglycolic acid (Active)2.0Propylene glycol57.0Ethanol20.0Water10.0Benzyl alcohol4.0Glycerin5.0Myristyl alcohol2.0
[0063]4000 .mg of the composition per 100 cm2 skin is topically applied once a day to the legs to soften terminal hair.
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