OK Massage is a massage spa in St Charles, Missouri, open seven days a week from 9:30 AM to 9:30 PM at 2629 Muegge Rd, St Charles, MO 63303. Call (636) 244-2727. Rated 4.4 out of 5, this massage spa offers full body massage and couples massage in a calm, zen environment, with hot stones that clients call amazing. Skilled, professional massage therapists help relax muscles, relieve stress and leave guests feeling like new people, rejuvenated and rebalanced, at a fair price. The rooms, lounge and restroom are kept clean, and the location has a wheelchair accessible parking lot and wheelchair accessible restroom.