Snake oil salesmen are as old as time itself — but so too are their detractors. Check out this 1950's public service announcement from the US Food and Drug Administration; Raymond Massey's message is as relevant today as it was over half a century ago.
And remember, people (especially you senior citizens): "There are NO Z-rays...Investigate before you invest in health services or products."
[Via boingboing]
DISCUSSION
That zeta applicator looks pretty well made for a 1950's quackery device...