When it comes to shampoo for your Yorkshire Terrier, it's important to know what you should be expecting of it and what the wrong ones are capable of doing.
1) Proper removal of body oils.
A big element revolves around body oils. Round the clock, dogs produce natural body oils. These act as natural moisturizers and skin protectors.
These do not evaporate; so, as time goes on there is an accumulation.
Just about 3 weeks after a bath (if that bath was successful and the shampoo did its job in removing them), enough oils will have built up that if they are not properly washed away, they will have a negative effect.
Tiny hairs get trapped, the oily mix will clog skin pores, block natural air flow, and start to smell. The blocked skin pores can cause skin eruptions (pimples), rash, and/or itching.
In time, the coat, in turn, will start to lie flat, may appear oily, and will pick up the odor as well.
Since water cannot rinse off those oils, the right shampoo is needed to effectively wash away all of those accumulated body oils. The goal is to start with a clean slate.
Problems arise, however, if an inferior dog shampoo is used. If it does not have the right cleansing agents this important step in the bathing process will not be accomplished. Second-rate shampoos will merely skim over the skin and coat, making the bath unsuccessful.
A Yorkie may never have a fresh, clean smell and his body will never truly be clean as it should be.