Which of the following is a benefit of aromatherapy in cosmetology?

Aromatherapy is widely recognized in cosmetology for its potential to promote relaxation, making it a popular choice in various beauty and wellness practices. The use of essential oils in aromatherapy creates an atmosphere that can soothe the mind and reduce stress, which is beneficial for overall well-being. This relaxation effect not only enhances the client’s experience during services such as facials, massages, or other beauty treatments but can also improve the client's mood and promote a sense of calmness, which may contribute positively to their mental health.

While other options might suggest benefits associated with specific cosmetic or beauty results, like promoting hair growth, reducing skin blemishes, or enhancing nail strength, they are not core functions of aromatherapy. In essence, the primary benefit highlighted in this context relates to the relaxation and stress relief that aromatherapy techniques effectively provide.