This is the 17603rd most frequent Turkish word.
şampuanın
"The shampoo's" (possessive form of shampoo).
Here, "şampuanın" demonstrates the possessive form, indicating ownership of the shampoo brand.
Şampuanın markası nedir?
What is the brand of the shampoo?
In this sentence, "şampuanın" refers to the cap belonging to the shampoo, again showing possession.
Banyo yaparken şampuanın kapağı açılmadı.
While taking a bath, the cap of the shampoo wouldn't open.
"Şampuanın" here shows the possessive relationship, indicating the scent characteristic of the shampoo.