Local Service — Park Ridge, IL
WEIGHT LOSS PEPTIDES IN PARK RIDGE
The GLP-1 family — semaglutide and tirzepatide — are the most effective weight-loss peptides we have. We prescribe them with a 60+ marker baseline panel, a DEXA body composition scan, and in-person follow-up. Real medicine, not a checkout cart.
Written and medically reviewed by Missy Zammichieli, DNP, APRN, FNP-BC · Updated May 3, 2026
From the Provider
Missy Zammichieli, DNP, APRN, FNP-BC
Doctor of Nursing Practice
Board-Certified Family Nurse Practitioner
"Weight loss peptide" is a marketing phrase the internet uses to mean different things. In legitimate clinical practice, the weight-loss peptides patients are actually losing weight on are the GLP-1 family — semaglutide and tirzepatide. They are peptide-based incretin mimetics. They work. The trials are clear, and so is the real-world evidence.
The pattern I see most often is patients who started one of these through a telehealth-only company without baseline labs, without body composition tracking, and without anyone monitoring whether they were losing fat or losing muscle. They drop 30 pounds, feel weaker, get worse cardiovascular markers in some cases, and lose bone density — especially the women in perimenopause who are already at risk.
Real measurement at the start. Real measurement during. Real follow-up. That's what makes a weight-loss peptide a weight-loss medicine.
THE WEIGHT-LOSS PEPTIDE FAMILY
The peptides that actually drive weight loss in clinical practice are GLP-1 receptor agonists. Each has a different profile.
Semaglutide
Single-receptor GLP-1 agonist. Phase 3 trial average ~15% body weight loss at 68 weeks. Brand names Ozempic and Wegovy. Available compounded through licensed 503A/503B pharmacies. Longer real-world track record than newer agents.
Tirzepatide
Dual GLP-1 + GIP receptor agonist. Tends to produce greater average weight loss in head-to-head trials (~20–22% at high dose). Brand names Mounjaro and Zepbound. Different tolerability profile — some patients tolerate it better than semaglutide, some worse.
What about the next-generation peptides?
Newer triple-agonist GLP-1/GIP/glucagon peptides are in trials but are not currently FDA-approved and are not eligible for compounding. We follow the data and update our formulary as the regulatory and clinical landscape changes.
Other "weight loss peptides" online
A lot of marketing labels other peptides as "weight loss peptides" — most of these have no meaningful clinical evidence for fat loss in humans. We focus on what the trials and the real-world data actually support.
WHY IN-PERSON, NOT TELEHEALTH-ONLY
Lean mass loss is the silent failure mode
Without resistance training and adequate protein, GLP-1 patients can lose 20–40% of their weight loss as lean mass. That's why we DEXA at baseline and 90 days, and why we coordinate with strength programming on the same campus. Telehealth companies don't measure this — they can't tell you it's happening.
Baseline labs change the plan
A 60+ marker panel reveals thyroid, hormonal, and metabolic drivers that determine whether GLP-1 alone is the right plan or whether other interventions belong alongside it. Read our local GLP-1 guide.
Side effects get handled in person
Nausea, fatigue, gallbladder symptoms, injection-site reactions — call our front desk and we see you. No support tickets. No three-day email turnarounds.
WHAT TO EXPECT
1. Pre-screen + book
Take our free GLP-1 eligibility quiz to see if you're a likely candidate. Then book your intake.
2. Baseline panel + DEXA
Done same-day at our Park Ridge clinic. Results reviewed by Missy at your intake visit, with a personalized plan based on what your labs actually show.
3. Start, titrate, monitor
Start at the lowest dose. Titrate up monthly based on response and tolerability. DEXA repeat at 90 days to confirm you're losing the right tissue.
Pricing
Program starts at $405/month, including medication, provider visits, and follow-up. One-time setup: $285 baseline panel + $150 DEXA. See the full GLP-1 program page. No insurance billed. HSA/FSA accepted.
COMMON QUESTIONS
Are GLP-1 medications actually peptides?
Yes. Semaglutide and tirzepatide are peptide-based molecules — chains of amino acids modified for stability and receptor binding. They are the most clinically validated weight-loss peptides currently available.
Semaglutide vs tirzepatide — which is better?
Tirzepatide tends to produce greater average weight loss; semaglutide has a longer real-world track record. Tolerability differs by patient. We discuss both at intake. Read the comparison.
Will I regain the weight if I stop?
Many patients regain partially. Sustainability depends on what your habits and body composition look like when you discontinue. Patients who built lean mass during treatment and learned a sustainable eating pattern hold weight loss better than those who only lost weight.
What about other "weight loss peptides" I see online?
A lot of products labeled as "weight loss peptides" online have no clinical evidence behind them for fat loss in humans. We prescribe what the trials and real-world data support — currently the GLP-1 family. If a new molecule earns the evidence, we'll evaluate it.
Do you take insurance?
No. We're a self-pay clinic. If your insurance covers brand-name Wegovy, Ozempic, Mounjaro, or Zepbound, we can write the prescription and you fill it externally — but our program (compounded medication + visits + DEXA) is not billed through insurance. HSA/FSA accepted.
START WITH MEASUREMENT
Weight loss peptides in Park Ridge — baseline panel, DEXA, and provider follow-up. Real medicine.
Book an IntakeEducational information only. Not medical advice. GLP-1 receptor agonists (semaglutide, tirzepatide) are prescription medications; eligibility is determined during intake based on history, BMI, comorbidities, and contraindications including personal or family history of medullary thyroid carcinoma, MEN2, and prior pancreatitis. Compounded GLP-1 medications are dispensed through licensed 503A/503B compounding pharmacies; regulatory guidance can change. Treatment outcomes vary. Pregnant or trying to conceive: GLP-1 medications are not appropriate. Moonshot Medical and Performance is a licensed medical clinic in Park Ridge, IL. All evaluations are performed by Missy Zammichieli, DNP, APRN, FNP-BC, who holds full practice authority in Illinois.