Alcoholic drinks sold in a package come with warning labels. I've seen reports 1-2 drinks a day may improve longevity, but I doubt it would be acceptable to label every beer as "youth potion", you have to limit intake for possible benefit. For the soap, to receive a benefit also requires more than the label indicated.

The substance banned takes hours to kill the bacteria (according to the article), so I would say it's marketed in a mis-leading way. I doubt many people actually buy the soap thinking a multi-hour exposure is needed.