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Photoplay Magazine for November, 1929
91
Colgate's Cleans Teeth Best
because actual scientific tests
prove that it has highest
penetrating* power
Its active, penetrating foam removes decaying impurities from those hard-to-reach places where the ordinary toothpaste cannot go.
Your dentist will tell you that decay doesn't start on the smooth outer surfaces of the teeth; but in the tiny crevices where food particles and mucin collect. These must be kept clean.
Therefore, the sluggish toothpaste which merely scrubs the outer surfaces fails utterly to give your teeth that thorough, scientific cleansing which really protects. Your toothpaste should be able to go down into the crevices and clean them.
A recent test . . . made by a well-known, impartial laboratory . . . proved that Colgate's active foam possesses a greater penetrating power than any of the leading dentifrices on the market today.
The reason for this lies in a truly remarkable property (called low "surface tension") which this foam has. This property enables it to sweep down to the very bottom of the tiniest pits and fissures, washing away impurities in a bubbling, detergent wave . . . purifying and cleansing every part of every tooth as no other toothpaste can.
In this foam, of course, is a safe, effective polishing agent which makes teeth sparkle and gleam. Thus Colgate's cleanses with a double effectiveness.
Millions of people get this extra protection . . . why not you? When you use Colgate's you have the comfort of knowing that the home-care of your teeth is approved by the vast majority of dentists.
Remember, too, that Colgate's is most economical — a 25c tube of Colgate's contains more toothpaste than any other leading brand selling at 25c.
This low price is due to volume production — Colgate's is the largest-selling dentifrice in the world.
If you have not yet become acquainted with Colgate's, may we send you a generous trial tube and an interesting booklet on the care of the teeth and mouth."" Just mail the coupon.
*HowColgate's Cleans Crevices WhereTooth Decay May Start
Greatly magnified picture of tiny tooth crevice. Note how ordinary, sluggish toothpaste (having high "surface-tension") fails to penetrate deep down where the causes of decay lurlc
This diagram shows how Colgate's active foam{having low "surface-tension") penetratesdeepdown into every tiny crevice, cleansing it completely where the toothbrush cannot reach.
Try Colgate's one week FREE
COLGATE. Dept. H-254fl.
P. O. Bo\ 37.5. Grand Centr,il Post Offlcc.
New York, N. Y.
Please send a free trial tube of Colpate's Ribbon Dental Cream, with booklet "How to Keep Teeth and Mouth Healthy."
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