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THIS prompt and frequent use of full strength Listerine Antiseptic may keep a cold from getting serious, or head it off entirely ... at the same time relieving throat irritation when due to a cold.
This is the experience of countless people and it is backed up by some of the sanest, most impressive research work ever attempted in connection with cold prevention and relief. Eight Years of Research
Actual tests conducted on all types of people in several industrial plants over 8 years revealed this astonishing truth: That those who gargled Listerine Antiseptic twice daily had fewer colds and milder colds than non-users, and fewer sore throats.
Kills "Secondary Invaders"
This impressive record is explained, we believe, by Listerine Antiseptic's germ-killing action ... its ability to kill threatening "secondary invaders" — germs that breed in the mouth and throat and are largely responsible, many authorities say, for the bothersome aspects of a cold.
Reductions Ranging to 96.7%
When you gargle with Listerine Antiseptic, that cool amber liquid reaches way back on throat surfaces and kills millions of the "secondary invaders" — not all of them, mind you, but so many that any major invasion of the delicate membrane is often halted and infection thereby checked.
Even 15 minutes after Listerine gargle, tests have shown bacterial reductions on mouth and throat surfaces ranging to 96.7%. Up to 80% an hour afterward.
In view of this evidence, don't you think it's a sensible precaution against colds to gargle with Listerine Antiseptic systematically twice a day and oftener when you feel a cold getting started? Lambert Pharmacal Co., St. Louts, Missouri.
NOTE HOW LISTERINE REDUCED GERMS!
The two drawings at left illustrate height of range in germ reductions on mouth and throat surfaces in test cases before and after gargling Listerine Antiseptic. Fifteen minutes after gargling, germ reductions up to 96.7% were noted; and even one hour after, germs were still reduced as much as 80%.
JANUARY, 1940