Final answer:
Clients commonly report dissatisfaction with facials due to not seeing immediate results or having adverse reactions, but falling asleep during the procedure is generally not a cause for such complaints.
Step-by-step explanation:
One of the common reasons for dissatisfaction with facials that clients report is not seeing immediate results post-treatment. Clients often expect visible improvements in skin texture and clarity right after a facial, but some treatments may take multiple sessions to show significant benefits. Another reason can be experiencing an adverse reaction following a facial, such as redness or breakouts, which can happen if a client has sensitive skin or if the skin reacts negatively to a product used during the service. Interestingly, long-lasting skin improvements or a very relaxing experience, which could lead to clients falling asleep, are typically not causes for dissatisfaction; in fact, these might be signs of a successful facial treatment. However, falling asleep is not generally a cause for client complaints. Therefore, it is not the answer to the question regarding common reasons for dissatisfaction.