Which benefit is NOT associated with steam during a facial treatment?

The benefit that is not typically associated with steam during a facial treatment is the firming of the skin. Steam primarily serves to hydrate the skin, soften its surface, and assist in deep cleansing by opening up the pores. This process allows for better removal of impurities and facilitates the absorption of subsequent products, such as masks or serums.

While steam does contribute to relaxation through a soothing experience during the facial, it does not directly influence skin firmness. Firming of the skin is generally achieved through treatment techniques that involve more targeted actions, such as the use of specific products with firming ingredients or modalities like radiofrequency or microcurrent treatments. Therefore, while steam has several notable benefits, improving skin firmness is not one of them.