Final answer:
A hairpiece worn by men to cover bald spots is known as a toupee, and treatments like finasteride, dutasteride, and minoxidil are better at preventing hair loss than regrowing hair.
Step-by-step explanation:
A hairpiece worn by men to cover bald or thinning hair spots, particularly on top of the head, is commonly known as a toupee. For those who prefer non-surgical options, hairpieces are used as a cosmetic solution to hide hair loss. The effectiveness of treatments for hair loss, such as finasteride, dutasteride, and minoxidil, is generally better at preventing further hair loss rather than regrowing lost hair. These medications have some evidence supporting their use in treating male pattern hair loss, but results can vary among individuals.