Abstract: The present invention discloses preservative-free toothpaste for children. The composition forming the preservative-free toothpaste for children consists of vitamin, calcium glycerophosphate, xylitol, sorbitol, polyethylene glycol, cellulose, hydroxypropyl guar gum, sodium lauryl sulfate, flavors and deionized water. The composition contains, by weight percentage, 0.01-0.06% of vitamin, 0.1-0.5% calcium glycerophosphate and 0.1-1% of xylitol. The vitamin comprises both vitamin E and vitamin C. In the present invention, vitamin E, vitamin C, calcium glycerophosphate and xylitol are combined in a certain proportion. The vitamin nourishes the children's tender gums. The calcium glycerophosphate provides calcium supplementation to the teeth. The xylitol has a reduced content of sugar, which prevents tooth decay and strengthens the teeth.

Abstract: A manufacturing method, Printed Circuit Board (PCB) panel, and a PCB are disclosed. The method includes forming a cavity in a PCB that is in a PCB panel that includes a frame and stays, mounting an electronic component, heating the PCB panel, and cutting the stays. The PCB panel includes a frame body and a PCB coupled to the frame body via stays. The PCB includes a cavity. A first cavity stay is located near the cavity. Extended lines extend from the cavity, and the cavity stay extends at least between the extended lines. The PCB includes a cavity and a connection point from a cavity stay near the cavity.

Abstract: The present invention discloses preservative-free toothpaste for children. The composition forming the preservative-free toothpaste for children consists of vitamin, calcium glycerophosphate, xylitol, sorbitol, polyethylene glycol, cellulose, hydroxypropyl guar gum, sodium lauryl sulfate, flavors and deionized water. The composition contains, by weight percentage, 0.01-0.06% of vitamin, 0.1-0.5% calcium glycerophosphate and 0.1-1% of xylitol. The vitamin comprises both vitamin E and vitamin C. In the present invention, vitamin E, vitamin C, calcium glycerophosphate and xylitol are combined in a certain proportion. The vitamin nourishes the children's tender gums. The calcium glycerophosphate provides calcium supplementation to the teeth. The xylitol has a reduced content of sugar, which prevents tooth decay and strengthens the teeth.

Abstract: A system and method for dyeing and/or lightening keratin-containing fibers, as well as a lightening composition for use in such a system and method are described, which are able to provide a high levels of lift while avoiding irritation and/or soothing the scalp. The system and method include a first composition, which may be a lightening composition. That composition includes (i) at least two alkali components for lightening keratin-containing fibers, wherein one of the at least two alkali components comprises sodium metasilicate and/or a metasilicate salt, and the composition comprises about 0.1 to about 10 weight percent of the at least two alkali components; and (ii) an arginine compound, wherein the arginine compound is present in an amount that would be effective to reduce irritation to a surface of a mammal having keratin-containing fibers. The system and method also include an oxidizing agent composition comprising an oxidizing agent, wherein the system has a pH of at least about 9 to about 12.

Abstract: A one step hair color and relaxer system comprising: an alkalizing agent in the range between about 0.1% to about 8%, based upon the total concentration of the hair color and relaxer system; a hair dye; and an oxidizing agent in the range between about 0.1% to about 6%, based upon the total concentration of the hair color and relaxer system; wherein the pH of the hair color and relaxer system is in the range between about 9 to about 14.

Abstract: By providing a certain oxidative primary and a certain oxidative coupler as an integral ingredients in hair coloring formulations, substantially improved and enhanced hair conditioning benefits are attained, providing a highly effective, hair coloring composition.

Abstract: By providing a certain oxidative primary and a certain oxidative coupler as an integral ingredients in hair coloring formulations, substantially improved and enhanced hair conditioning benefits are attained, providing a highly effective, hair coloring composition.