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AT THE FIRST SYMPTOM OF A
cold .. sore THROAT-Listerine, Q0/CKf
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Listerine Antiseptic reaches way back on the throat surfaces to kill "secondary invaders" . . . the very types of germs that make a cold more troublesome.
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.
Its value as a precaution against colds and sore throats has been demonstrated by some of the sanest, most impressive research work ever attempted in connection with cold prevention and treatment.
Ten Years of Research Actual tests conducted on employees in several industrial plants during a ten year period of research 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" on Tissue Surfaces This impressive record is explained, we
DECEMBEK, 1941
believe, by Listerine Antiseptic's germkilling action ... its ability to kill threatening "secondary invaders" — the very types of germs that live in the mouth and throat and are largely responsible, many authorities say, for the bothersome aspects of a cold.
Tests Showed Outstanding Germ Reductions on Tissue Surfaces
When you gargle with Listerine, that cool amber liquid reaches way back on throat surfaces and kills millions of the "secondary invaders" on those areas — not all of them, mind you, but so many that any major invasion of the delicate membrane may often be halted and infection thereby checked.
Even 15 minutes after Listerine gargle, tests have shown bacterial reduc
tions 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 systematically twice a day and oftener when you feel a cold getting started?
Lambert Pharmacal Co.. St. Louis. Mn.
Where illness often starts
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Si LISTERINE THROAT LIGHT
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