With natural menthol added to the core, these "cooling” feminine hygiene pads, a product popular in Asia and available for private branding in the United States, “help eliminate the muggy feeling and freshen you up during the period,” states the manufacturer, Taipei, Taiwan-based KNH Enterprise Ltd. The product’s unique resealable packaging helps protect unused pads, according to the company. Available in four different sizes, the product comes 12 to a package.