Washington’s MedSpa Where Science Meets Serenity

the collective experience

At River Sirens Collective, we bring together advanced medspa treatments and restorative wellness services to create a personalized path to confidence and renewal. Our expert providers deliver clinically backed care, from aesthetic treatments to pain-relief therapies, all designed to help you look and feel your best. Located in downtown Washington, Missouri, our medspa offers a calming, results-driven environment where science meets serenity. Discover a holistic approach to beauty and wellness tailored to your goals.

Meet Christy Blankenship, AGNP-C, MSCP

Christy Blankenship is a nationally certified menopause practitioner through The Menopause Society with a passion for helping women navigate perimenopause, menopause, hormone health, weight management, and overall wellness. Combining her background in fitness, nutrition, obesity medicine, and menopause care, Christy provides personalized, evidence-based treatment designed to help women feel their best, regain their confidence, and thrive through every stage of life.

Learn more

why choose The collective?

We take a comprehensive approach that looks beyond single treatments and focuses on long-term wellness and real results. Our team provides expert guidance, customized plans, and ongoing support using industry-leading equipment and medical oversight. Clients choose us for our commitment to safety, transparency, and care that is truly tailored to their needs.

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Our services

  • A woman measuring her waist with a tape measure.

    Body Sculpting

    Target stubborn areas and enhance your natural contours with non-invasive, science-backed body sculpting treatments. Our customized plans support inch reduction, toning, and overall body confidence.

    Book your body sculpting consultation
  • Person receiving a laser or light therapy treatment on their leg in a spa or medical setting.

    Lasers

    From laser hair removal and tattoo removal to IPL treatments for pigmentation and discoloration, our laser services deliver targeted, effective results with minimal downtime. Reveal clearer, smoother, more even-toned skin with science-backed care.

    see laser treatments
  • A woman lying down with a headband on, receiving a cosmetic injection in her lips from a gloved hand.

    Injectables

    Refresh your appearance with provider-guided injectables designed to soften lines, restore volume, and enhance facial harmony. Our medical team creates subtle, natural-looking results tailored to your features.

    Learn more about injectables
  • Close-up of a person's face before and after skincare treatment, showing improved skin texture and brightness.

    Skin Rejuvenation

    Revitalize your complexion with customized treatments that address texture, tone, hydration, and overall skin health. From microneedling to chemical peels and facials, we focus on restoring your natural glow.

    improve your skin health
  • A smiling man sitting in a hot tub with visible steam and a digital temperature display showing -167°F in the background.

    Whole Body Wellness

    Designed to support recovery, energy, and overall balance through evidence-based therapies. Experience the benefits of cryotherapy for inflammation and muscle relief, and red light therapy for improved skin health, cellular repair, and deep relaxation.

    book your wellness session
  • Close-up view of several blood samples in test tubes with purple and orange caps, placed in a yellow storage rack.

    Blood Panel

    Gain clarity about your health with comprehensive blood panels designed to assess hormones, metabolism, and overall wellness. Our provider reviews your results and builds a personalized plan based on your needs.

    View Blood panel options
  • Group of women promoting non-surgical vaginal rejuvenation treatments, including a mature woman and two younger women, with text highlighting benefits like no downtime, no pain, and FDA approval.

    Women's health

    Prioritize your wellbeing with services tailored to women’s health, including pelvic wellness, hormone support, and restorative treatments designed to help you feel comfortable, confident, and cared for at every stage.

    Discover women’s health services
  • A man lying on a hospital bed receiving laser therapy on his leg from a woman in black gloves, with medical equipment in the background.

    Pain Relief

    Designed to reduce inflammation, improve mobility, and support long-term healing. Our pain relief offerings include chiropractic care, radiofrequency therapy, shockwave therapy, and Class IV laser treatments—all backed by clinical science to help you move and feel better.

    Schedule free pain relief consultation
book your free consultation

636-283-0437

Testimonials

  • "I’m so impressed! This beautiful spa has everything to provide holistic care. As a nurse, I know how to achieve health. The treatments offered here can Work in conjunction with physician prescribed medications or eliminate the need for medications all together. As I toured this facility, I saw some amazing benefits for multiple different ailments including diabetic wounds that aren’t healing and chronic pain and inflammation. This spa has been positioned to care for the person from the outside in. River sirens even has its own skin care collection! Everything is state of the art! No expense was spared to provide care for everyone! Don’t just take my expert word for it, come check it out yourself!"

    Connie W.

  • "Wow!! What an experience!! I had an amazing and rejuvenating whole body work over at River Sirens Collective Spa. From PEMF, Zero gravity massage chair, Cryo Chamber, Red/Multi-Spectrum Light Bed, to Vibration Plate. And so much more is offered. Great value on monthly membership levels. Great people. Refreshing environment. Lisa and the staff really know and enjoy what they are doing."

    Darren J.

  • "I have a membership and absolutely love coming here every week! My favorite service is the Pelvic Floor Chair—I've noticed a significant improvement in my pelvic strength since using it. I also really enjoy their coffee. The environment is comfortable and welcoming, making it the perfect place to focus on myself."

    Marilyn G.

  • "Prepare to be in awe when you take a tour. You can even try a service you’re interested in. What an awesome, & much needed addition to Wash! This family deserves all the applause for taking & transforming this building into this amazing spa/collective! It’s peaceful from the moment you walk in, & nothing pretentious…which I had reservations about. The staff couldn’t be more helpful & are so kind. If you have questions or reservations about memberships, for the best rates & added benefit, you won’t by the time you leave. My inquiry started out of interest for services to help with possible back pain healing & pain mngmt and took off from there! Honestly this place could become an addiction if you’re into health & wellness, although they offer so many other services to include aesthetic services & much more in this collective. I’m looking forward to daily (yes daily!) visits on my membership & have already taken advantage of other great offers I’ve yet to find anywhere else in Washington & they didn’t even require being a member."

    Theresa T.

  • "Wow! Talk about results. I had so much pain in my back, and getting the pain management package has made all the difference. The staff is knowledgeable and friendly, and it’s such a casual, community-friendly spa environment. It doesn’t feel too fancy or like I don’t belong, yet it’s beautiful and smells great! Take some time to check out their store! There are so many great products, and I can tell that a lot of time goes into curating their products."

    Mo T.

  • "A truly exceptional med spa, amazing atmosphere and people. Biggest thing, though, is the top of the line state of the art equipment that doesn’t just promise pain relief and well being—it delivers! Easy to book online, on site parking. Feel great!"

    Diane J.

  • "I have been receiving care for my knee after having a total knee replacement. I am recovering with less pain than I did on my first knee that was replaced. The pain relief membership has really helped me to have access to several modalities of treatment. I have had a class IV laser, shockwave and indiba radio frequency treatments on my knee. The decrease in my pain is remarkable !"

    Dawn M.