PSI Barbering Practice Exam

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What topical treatment has been proven to stimulate hair growth?

Minoxidil
Finasteride
Biotin cream
Ketoconazole shampoo

The correct answer is: Minoxidil

Minoxidil is a topical treatment that has been clinically proven to effectively stimulate hair growth in individuals experiencing hair loss, such as androgenetic alopecia (male or female pattern baldness). It works by increasing blood flow and nutrient delivery to hair follicles, and it also extends the growth phase of the hair cycle, which can lead to thicker hair strands and increased density. Available over-the-counter, minoxidil is easy to apply directly to the scalp, making it a popular choice for those seeking to combat hair loss. Other options may also have their benefits or uses; for example, finasteride, while effective in oral form for treating male pattern baldness, is not a topical treatment. Biotin cream has anecdotal support for strengthening hair but lacks strong scientific evidence for stimulating growth. Ketoconazole shampoo is primarily used for treating dandruff and certain scalp conditions and may have a secondary effect on hair health but is not specifically proven to stimulate hair growth like minoxidil.