Spas with reservation required

Los Angeles, California

Day spa in Pasadena offering facials, scalp therapy and body treatments, with its signature Synergy Rejuvenation Scalp Spa, open daily 10am-7pm.

Raleigh, North Carolina

A North Raleigh day spa specializing in the Kranial Flush, a scalp and cranial treatment, alongside body work, face and hair therapy.

Carmichael, California

A single-room salt cave in a Carmichael strip mall offering 45-minute salt therapy sessions for relaxation and respiratory relief.

Jacksonville, Florida

Medical spa in Northside Jacksonville offering facials, body contouring and VelaShape treatments, open daily except Sunday with reservations recommended.

Miami, Florida

A medical spa in Brickell's Latitude One building offering Botox, IPL photofacials, body contouring and massage by appointment.

San Francisco, California

A reservation-only day spa on El Camino Real in San Bruno specializing in head spa therapy, scalp care and lash services for adults.

North Royalton, Ohio

A North Royalton day spa built around a salt room and sauna, with adults-only halotherapy sessions on a walk-in or reserved basis.

Richmond Hill, Georgia

A reservation-only day spa for adults in Richmond Hill near Savannah, built around massage treatments, open Tuesday through Saturday.

Des Peres, Missouri

A moderate-priced day spa in Des Peres, just west of St. Louis, open six days a week with a relaxation lounge and treatments geared toward couples and adults.

Cleveland, Ohio

A downtown Cleveland med spa offering injectables, body contouring, IV therapy, hormone optimization and medical weight loss for adults.

Huntersville, North Carolina

A head spa and massage studio operating out of a private suite at Salon Lofts in Huntersville, open Tuesday through Saturday by appointment only.

Scottsdale, Arizona

A moderately priced medical and day spa in central Scottsdale, open daily except Monday, for adults only, with walk-ins welcome though reservations are

Las Vegas, Nevada

A reservation-only, adults-only hotel spa in Las Vegas open daily 10am-8pm, in the moderate price tier.

Texas Hill Country, Texas

A medical spa on San Antonio's Far West Side offering massage, facials, injectables and laser hair removal, open weekdays and Saturday mornings.

Mexico City, Ciudad de México

An adults-only day spa for couples on Paseo de la Reforma in Cuauhtémoc, Mexico City, open daily from 9am to 8pm.

Oak Creek, Wisconsin

A Oak Creek, WI massage clinic and day spa with adults-only access, listed hours only on Sunday, and a moderate price tier.

Philadelphia, Pennsylvania

A reservation-only day spa in Blue Bell, just outside Philadelphia, with moderate pricing and adults-only access.

Bartlett, Tennessee

An appointment-only luxury day spa in Bartlett Station, Memphis, with service packages priced up to several thousand dollars.