Taking into consideration the long history of the toothpaste brand (it was introduced in the US in 1915), it is only natural that the Pepsodent logo has gone through multiple updates.
Meaning and history
1915 (according to other sources – 1901)
The original logo was the most creative one. The ends of the “P” and “D” were extended, other glyphs also had an unusual shape.
1948
A simpler sans was introduced. The initial, the “P,” had an elongated end at the top.
1977
The “thorn” on the “P” was removed, the “t” adopted a curve. You can already see that the wordmark is blue.
2000
The italics on the Pepsodent logo were much more noticeable.
2016
A red curve appeared under the logo.
2018
In this version, the italics are not so extreme. The red curve has been preserved, though.