Welcome to Spa Kingston! An Unparalleled Experience Fit for Royalty. Sophisticated and chic. Welcoming and unpretentious. Our luxury day spa in San Diego offers a prestige level of treatments and products that are tailored to your individual needs. We are a nationally certified Acne Clinic, a certified Green Company, and our spa menu features everything from facials, oxygen treatments, chemical peels, diamond tip microdermabrasion, massage, LED Lightstim, waxing, and more!