On the tree-lined, bustling Beacon Street, a stately brownstone located at the St. Mary's T-Stop, three blocks from Fenway Park, and a 10-minute walk from the Longwood Medical area offers sanctuary from the frenetic outside world. Here, Southwest Day Spa cossets bodies and minds with more than 30 pampering spa treatments. Its lava-shell massage brushes bodies with polished shells from the Philippines that therapists have gently heated and combined with minerals, algae, salt water, and essential oils. The desert-heat body wrap, with its zinc compound, helps tone and smooth skin by scrubbing, wrapping, and then rinsing in a four-jet steam shower. The zinc compound is also an effective treatment for painful joints and muscles. Plant-stem-cell facials work to delay the appearance of aging much better than denial, and microcurrent technology fades wrinkles. Spa packages include special options for brides, couples, and those who, like NFL linebackers, just want to be pretty and pampered. Additionally, FDA-approved SmartLipo treatments take aim at stubborn fat cells, while laser hair removal banishes unwanted hair for all skin types.