You can mix vinegar and baking soda, and place the head in it letting it soak. They also sell cleaners for this purpose. You can check with any hardware store, or major department store.
The Barcelona showerhead can either be filtered to prevent calcium deposits, or can simply be cleaned as needed.
The mineral deposit in a showerhead depends on the minerals in the water. Mostly, it is calcium.
calcium buildup in bone
Buildup of minerals like calcium.
CLR will work well.
I have calcium build up in the abdomen what could be the cause of it and what can be done
Calcium can be dissolved by white vinegar. It works best to soak the buildup in full strength white vinegar, but if you have to spray it on and let it soak, that works pretty well, too.
You might have a pulsating showerhead?
Calcium buildup, anywhere in the body in general, is called 'calcification' or 'calcinosis' if it occurs in soft tissue. However, I'm having trouble answering your question because you have not specified what part of the wrist you are referring to (i.e, bone, muscle, cartilage, or cutaneous tissue.) For example, calcium buildup specifically in the skin is called 'calcinosis cutis' and is a feature of diseases such as scleroderma.
Calcium deposits of the spinal cord is known as stenosis. Stenosis is an arthritis of the spine when there is enough buildup to cause impingement.
With proper care it should not. However any shower head can have hard water build up with out the proper cleaning.
The barcelona White Finish Showerhead has 3 settings.