colgate-y freshness

i found the sample of "colgate weekly professional clean" toothpaste which i got... dunno when in my drawer yesterday...
it claims to have the "same ingredient dentists use".
anyways.
i tried it this morning... and after finished brushing, it seemed like the extra clean feeling comes from the fact that: the toothpaste is "concentrated"... so like using more toothpaste....
and that you have to keep brushing for a "full three minutes".

i'm not bothered to compare this to brushing with a normal toothpaste for a REALLY long and boring time and makes you have a wanting-to-regurgitate feeling since you're opening your mouth for that amount of time staring at the sink...