Dandruff SHAMPOO.
The Big Bang Theory Season 4, Episode 1
...and my new dandruff SHAMPOO
doesn't smell like tar.
The Big Bang Theory Season 6, Episode 6
for peeing
in his SHAMPOO bottle...
The Big Bang Theory Season 12, Episode 4
And also, while we're on the subject,
you recently changed your SHAMPOO.
The Big Bang Theory Season 6, Episode 2
Only to SHAMPOO
Professor Shamburg's shih tzu.
The Big Bang Theory Season 3, Episode 14