According to the search results, hair loss is not a direct side effect of Ozempic, Wegovy, or Mounjaro. However, hair loss has been reported in some people after rapid weight loss due to the stress on the body, which can lead to temporary shedding of hair over several months, a condition known as telogen effluvium. In Wegovy studies, hair loss was reported in 3% of adults using Wegovy and 1% using a placebo, and in children 12 years and older, hair loss was reported in 4% vs. 0% using a placebo. In a clinical study of Mounjaro, hair loss occurred in 4.9% to 5.7% of people using a 5 mg to 15 mg dose of Mounjaro, compared to 0.9% of those using the placebo. Hair loss is not listed as an adverse effect in the package insert for Mounjaro or Ozempic, but some users have still reported experiencing it. Hair loss from rapid weight loss is very common and not necessarily a side effect of the medication itself but more as a result of how quickly the weight loss occurs. Therefore, while hair loss is not a direct side effect of these medications, it is possible that some people may experience it due to rapid weight loss.