Your members and guests leave when they stop seeing results.
A Serotonin Active suite puts hormone optimization, GLP-1 medical weight loss, peptides, and IV recovery inside your four walls, in 200 to 500 square feet you already have. Built by operators who have lived the churn problem and the amenity problem from the inside.
Selective placement · Space assessment included · One business day response
What hosting a Serotonin Active suite means.
A Serotonin Active suite is a compact, fully branded medical longevity operation placed inside your facility, in a studio room, an underused office, a spa annex, or converted storage space. Your members or guests get medical-grade services that drive visible results. Your venue gets a retention and differentiation engine, and productive use of space that currently earns nothing. Some venue operators choose to own the franchise themselves; others host a suite operated by a Serotonin Active franchisee.
Churn is a results problem before it is a pricing problem.
Run the math on a hypothetical club. A 4,000 member gym losing 4 percent of its members a month loses roughly 39 percent of its base over a year, more than 1,500 memberships.
What blocks their progress usually is not effort. It is physiology: hormone imbalance, poor metabolic function, nutritional dysregulation, declining growth hormone, and under-recovery. A trainer cannot program around an untreated hormone deficiency. A medical provider can treat it.
The premise is simple. Members who get more value from a venue tend to stay longer. A medical longevity offering is intended to add value. Serotonin Active does not guarantee any retention, attrition, revenue, or other performance result, and no such result should be expected.
Illustrative and hypothetical model for discussion only. The attrition figures, including any figure shown for a venue with a medical offering, are assumptions selected to demonstrate the arithmetic. They are not based on measured data, they are not a prediction, and they are not a claim that a medical offering produced or will produce any result. Serotonin Active makes no representation that adding a medical longevity suite will reduce attrition, increase retention, or produce any specific financial result. Individual venue results will vary and may show no benefit.
Medical-grade services your members and guests currently drive across town for.
Hormone Optimization
HRT for men and women, clinically supervised, coordinated with training or wellness goals.
Medical Weight Loss
GLP-1 and GIP based protocols with medical oversight, built to protect lean mass while members train or recover.
Peptide Therapy
FDA-compliant peptide protocols supporting recovery and performance goals.
IV Therapy & IM Shots
Post-workout recovery infusions and energy shots, steps from the training floor, the spa, or the clubhouse.
Red Light Therapy
LightStim bed technology, where suite space allows.
Hyperbaric Oxygen
HBOT recovery sessions, where suite space allows. A premium amenity for premium venues.
You have the space. You have been walking past it.
Underperforming studio rooms. The kids club that never recovered. A spa annex with no scheduled programming. Storage that stores nothing valuable. Serotonin Active converts 200 to 500 square feet of it into the most talked-about corner of your venue. Our team runs the full space assessment and buildout plan during qualification.
200–500 sq ft dedicated, lockable suite
8-foot ceiling minimum, 9 or more feet ideal
HIPAA-grade sound control (solid core doors, insulation)
Dedicated HVAC holding 68–74°F
100-amp subpanel minimum, 240V for HBOT and red light

This is not for every venue. It is for operators serious about outcomes.
Gyms with roughly 2,000+ members
Markets with $100K+ average household income
Leadership committed to member or guest outcomes
Willingness to market internally: email, signage, front-desk or concierge referrals
Operators looking for a long-term strategic partner, not a short-term lease tenant
Hotels, resorts, and golf clubs are the next frontier.


Guests already pay a premium for a differentiated experience. A Serotonin Active suite gives a luxury hotel, destination resort, or golf and country club a medical-grade wellness amenity most competitors cannot replicate quickly: hormone optimization for a member who travels for business, IV recovery after eighteen holes, red light therapy after a spa day.
The commercial case is the same one gym owners already understand: underused square footage (an unused spa room, a clubhouse annex, a hotel wing with dead hours) converts into a new, medically credentialed revenue line, without the operator taking on clinical staffing or compliance directly. The suite becomes a reason to choose this property over the one down the road.
Built by people who have run venues, not people pitching them.
Founded by operators
Our founder built his national fitness franchise to 150+ locations before building Serotonin. We operate aligned with venue culture because we come from it.
These figures describe Mr. Casaburi's prior companies during his tenure. They are historical and are not a projection of Serotonin Active franchise performance.
Operating medical centers since 2021
Our leadership has operated national medical longevity centers since 2021, with administrative compliance and liability standards built into the model.
Direct access to leadership
Best-in-class training and operational support, with a leadership team you can actually reach.
Let’s see if we are a fit.
Reduce attrition. Differentiate your amenity mix. Give your members and guests results they can measure. It starts with a two-minute form.