Medical Weight Loss at Aetheria Aesthetics & Wellness™
Ross Township · Pittsburgh’s North Hills · Medical Weight Loss
With Melissa Kolowitz, PA-C. 20+ years clinical and surgical experience.

Our Approach to Medical Weight Loss
The patients we see most often have already heard the headlines about semaglutide and tirzepatide. What they are looking for is something different: a clinician who reviews baseline and follow-up labs, paces titration to work with the side-effect curve, tracks body composition rather than just scale weight, and is honest when the right answer is to slow down or stop. The surgical background informs all of it. A clinician trained inside the OR thinks about tissue, healing, and whole-patient physiology in ways that translate into how every dose, every follow-up, and every protocol decision gets made.
We believe long-term metabolic outcomes matter more than short-term weight loss numbers. The protocol is built that way. Medical weight loss sits inside our broader Metabolic Health program, which also includes peptide protocols, nutritional and supplement guidance, and continuity care with Sculptra, InMode Luxora Morpheus8 Burst, and InMode Luxora Quantum RF when significant weight loss brings new questions about the face, skin, or body.
The medication is one tool. The clinical work around it is what makes the weight loss durable.
Who Medical Weight Loss Is Designed For
Medical weight loss with a GLP-1 medication is appropriate for specific clinical situations, not every weight concern.
Significant Excess Weight
Designed for adults with a BMI in the medically actionable range where weight loss meaningfully matters for long-term metabolic and cardiovascular health.
Plateau After Sustained Lifestyle Effort
Designed for adults who have made sustained nutritional and movement work over many months and have not seen meaningful loss despite the effort.
Metabolic Markers Suggesting Candidacy
Designed for adults whose labs show insulin resistance, elevated fasting glucose, or other metabolic markers that GLP-1 therapy is well-suited for.
Post-Pregnancy or Hormonal Weight Considerations
Designed for adults whose body composition has shifted with hormonal transitions and who want clinical support to recalibrate.
Weight Regain After Prior Loss
Designed for adults who lost weight previously through other approaches and have seen regain, where the underlying physiology suggests a GLP-1 protocol is appropriate.
Already on a GLP-1
Designed for adults already on semaglutide or tirzepatide who want in-person clinical care for ongoing labs, side-effect support, and conversations about what comes next.
Semaglutide vs Tirzepatide
Both are FDA-approved GLP-1 weight loss medications administered as a weekly subcutaneous injection. Here is how they differ side by side.
| Factor | Semaglutide | Tirzepatide |
|---|---|---|
| Mechanism | GLP-1 receptor agonist. | Dual GIP and GLP-1 receptor agonist. |
| Average weight loss in trials | Approximately 15 percent of body weight (STEP studies, 68 weeks). | Approximately 20 percent of body weight (SURMOUNT studies, 72 weeks). |
| Dosing | Weekly subcutaneous injection, titrated. | Weekly subcutaneous injection, titrated. |
| FDA approval (chronic weight management) | Wegovy brand. | Zepbound brand. |
| Time on protocol before plateau | Typically 12 to 18 months. | Typically 12 to 18 months. |
| Side effect profile | GI symptoms most common (nausea, constipation, reduced appetite). | Similar GI profile; some patients tolerate one better than the other. |
| Clinical track record | Longer history, well-characterized. | Newer, growing evidence base. |
| Typical candidate | Adults beginning GLP-1 therapy or whose insurance favors semaglutide. | Adults seeking greater average loss or whose response on semaglutide has plateaued. |
Your First Six Months on a GLP-1
Medical weight loss is a paced clinical protocol. Here is the clinical course most patients move through.
Weeks 1 to 4: Foundation and Titration
Baseline labs reviewed. Conservative starting dose of semaglutide or tirzepatide. Weekly in-person check-ins to work with early GI side effects, which are most common in this window. Dose adjustments based on tolerance, not a rigid schedule.
Months 2 to 3: Steady Titration
Continued dose titration as your body adapts. Side effects typically diminish. Weight loss begins to show. Body composition tracking reveals where loss is actually occurring. Bi-weekly visits in this window.
Months 3 to 6: Active Loss
Most rapid period of weight reduction. Maintenance dose or continued titration depending on goals and response. Monthly visits, ongoing lab work, side-effect monitoring. Conversations about continuity care (Sculptra, InMode Luxora Morpheus8 Burst, InMode Luxora Quantum RF) begin if visible differences in your face or skin are emerging that you’d like a clinical opinion on.
Month 6 and Beyond: Maintenance or Continued Loss
Reassessment of goals, labs, and body composition. Some patients continue active loss toward a further goal. Some shift to a maintenance dose to keep their result. Conversations about long-term Metabolic Health (peptide protocols, ongoing labs, nutritional guidance) move to the front.
Why Aetheria for Medical Weight Loss
The clinical difference at Aetheria starts with Melissa Kolowitz, PA-C, and her 20+ years of surgical and clinical experience. Surgical training teaches you to think about tissue, healing, and the patient in front of you as a whole physiology, not a single complaint. That perspective informs every protocol decision, every dose adjustment, every conversation about what comes next.
At Aetheria, every medical weight loss visit is with Melissa. Always Melissa. The clinical history we build at the first consultation informs the eighth, the eighteenth, and the conversation about what to do when active weight loss settles.
- One provider, every visit. Same clinician, same protocols, same clinical eye every time.
- Conservative starting doses with paced titration. Side effects are worked with by pace, not by tolerating a dose that is too high too soon.
- Weekly cadence during titration, monthly thereafter. In-person care throughout.
- Body composition tracking, not just scale weight. We measure what is actually shifting.
- Lab-driven decisions, not guesswork. Baseline and follow-up labs inform protocol decisions throughout the course of care.
- Honest about what comes next. Significant weight loss brings new questions about the face and skin. We talk about that at consultation, not after.
- Integrated with the full Aetheria Metabolic Health program. Sculptra, InMode Luxora Morpheus8 Burst, InMode Luxora Quantum RF, peptide protocols, and ongoing wellness are part of the same clinical relationship if you want them.
Your Medical Weight Loss Visit
From consultation to ongoing protocol. The cadence varies by phase of care.
Consultation
Comprehensive intake on weight history, prior approaches, current medications, and metabolic goals. Discussion of GLP-1 candidacy. About 60 minutes. No pressure to begin treatment the same day. We may recommend bloodwork first.
Lab Work and Protocol
Specific metabolic and hormonal lab panel. Results inform medication selection (semaglutide or tirzepatide), starting dose, and any considerations specific to your physiology.
Titration Phase
Weekly to bi-weekly in-person visits during the first six to twelve weeks while we work with side effects and adjust dose. You learn the self-injection technique with Melissa.
Ongoing Protocol and Maintenance
Monthly in-person visits during active loss. Body composition tracking, periodic lab work, and conversations about continuity care and long-term Metabolic Health as your situation evolves.
Common Questions About Medical Weight Loss
Average weight loss in clinical trials varies by medication and individual. Semaglutide trials (Wegovy STEP studies) showed an average of approximately 15 percent body weight reduction at 68 weeks for patients who completed the protocol. Tirzepatide trials (Zepbound SURMOUNT studies) showed approximately 20 percent at 72 weeks. Your actual result depends on adherence, dosing, baseline metabolic health, and lifestyle factors. We track body composition during treatment, not just scale weight, so the picture reflects what is actually shifting.
Both are FDA-approved for chronic weight management and work by signaling satiety and slowing gastric emptying. Tirzepatide adds a second receptor activation (GIP) that has shown greater average weight loss in clinical trials. Semaglutide has been in clinical use longer and is well-characterized. The right choice depends on your medical history, prior medication response, insurance considerations, and goals. Melissa makes this recommendation at consultation after reviewing your labs and history.
The most common side effects are gastrointestinal: nausea, occasional vomiting, diarrhea or constipation, and reduced appetite (which is part of the mechanism, not a complication). Side effects are typically most pronounced in the first one to two weeks after each dose increase and generally diminish with continued use at a steady dose. Conservative starting doses and slow titration significantly reduce side-effect severity. Rare but serious risks include pancreatitis and gallbladder considerations; we screen for these in your baseline labs and monitor throughout.
Most patients stay on a GLP-1 medication for at least twelve to eighteen months to reach and stabilize at their goal. Some patients continue indefinitely at a maintenance dose to keep their results; some taper off after eighteen to twenty-four months with continued lifestyle and peptide support. The decision is collaborative and based on your individual response, side effects, and long-term goals. We do not push you to continue or to stop on an arbitrary timeline.
Significant weight loss reduces facial fat pads in the midface, temples, and lower face, and can lead to skin laxity considerations wherever the underlying volume has shifted faster than the skin can remodel. This is anatomy, not a side effect of the medication. Continuity care at Aetheria includes Sculptra for facial volume considerations, InMode Luxora Morpheus8 Burst for skin tone considerations, and InMode Luxora Quantum RF for body contour considerations. Many patients begin these treatments in the later phases of active weight loss or shortly after stabilizing. The conversation typically begins around month four to six of active loss.
Yes. Many patients begin in-person clinical care after starting GLP-1 therapy. The first visit covers baseline labs, body composition, current dose and tolerance, side-effect history, and what you are looking for from ongoing care. From there the protocol is yours: continue your current dose with in-person follow-up, taper into maintenance, or adjust based on what the labs show. The medication is one tool in a broader Metabolic Health plan, and the plan is built around your situation.
What Patients Say
EXCELLENT Based on 24 reviews Posted on BethanyTrustindex verifies that the original source of the review is Google. I recently had my 1st microneedling treatment at Aetheria Aesthetics & Wellness, which is a boutique medical spa in Pittsburgh, PA. Melissa, the owner, is a PA and has over 20 years of surgical care experience. She's very friendly and good at explaining the procedure step by step. When you go, she'll do a consultation with you where you'll discuss your skin concerns and goals. She's honest and will give you good advice. She made the treatment easy. She told me what to expect afterwards for the next few days and how to care for my skin while it was healing. I'm happy with my results and will go to her for other treatments. She also offers a lot of other treatments like Botox, filler, weight management, laser, and more. I think you'll like her and will be happy with your results!Posted on Stephanie MillerTrustindex verifies that the original source of the review is Google. I have really oily skin and redness, I kept following all these skincare routines off tiktok but decided it was time to really get advice from a professional. Melissa seriously knew exactly what my skin needed. She picked out a chemical peel that was just right for my skin concerns, she explained to me everything I needed to do moving forward. I really felt heard and when I left I already saw a huge difference in my skin. It's been a week later and I am seriously obsessed with the results!! I am so grateful!Posted on Jessica MillerTrustindex verifies that the original source of the review is Google. I had a wonderful experience at Aetheria Aesthetics for my ZO peel. Melissa was absolutely fantastic—and so incredibly sweet. She took the time to really understand my skin, my goals, and my concerns before making recommendations. I never felt rushed, and I truly appreciated how thoughtful and knowledgeable she was in explaining the process and giving personalized advice. Highly recommend Aetheria Aesthetics and Melissa if you’re looking for expert care with a genuinely kind touch!Posted on Kianna BrunnerTrustindex verifies that the original source of the review is Google. I had such a great experience getting Botox with Melissa at Aetheria Aesthetics! She is seriously the sweetest and makes you feel comfortable right away. She’s also super knowledgeable and really strategic with where she places the injections, which I appreciated a lot. The whole process was way more painless than I expected, and she has such a gentle technique. My results turned out AMAZING — super natural and exactly what I was hoping for. Highly recommend Melissa if you’re thinking about Botox. She’s the best! ✨Posted on brittany pentTrustindex verifies that the original source of the review is Google. I absolutely adore Melissa! Her space is cute and clean. I went to her for Botox and could not be more thrilled with my results. Melissa is so knowledgeable and thorough. Everything was so well explained to me. I am sooooo happy that she does a two week follow up for Botox because my before and after pictures are MIND BLOWING!!!! I could physically see a difference in the mirror but then seeing the before pictures next to my current photo…I was shocked! She is so gifted. I am sooooo happy I found her !Posted on Rachelle FarquharTrustindex verifies that the original source of the review is Google. Very professional and good experience! Reasonably priced and realistic!Posted on Dakota PetersonTrustindex verifies that the original source of the review is Google. I had an incredible experience with Melissa! She’s the absolute SWEETEST! I got Botox and she went over what the products were and the science behind them, making sure I knew what I was putting in my body. Her suite is so cute and well done I loved everything about it! 1000000/10💕Posted on Aaryn HuntTrustindex verifies that the original source of the review is Google. I had a great experience with Melissa today! I didn’t realize that the Sola suites moved to the mall, I love the location. Her suite is very clean and intimate. She is knowledgeable and skilled with a medical background as a PA and that gave me full confidence in her doing my laser hair removal treatment. I’ll definitely be back!Posted on Brooke PostlerTrustindex verifies that the original source of the review is Google. I cannot express how amazing Melissa is! I left there after getting the ZO accelerated peel feeling so excited to have finally met someone who listened to my concerns and created a plan for me that is backed by science. Melissa took the time to sit with me and fully explain each product and each step of the experience. I will recommend her to everyone!Posted on Madi ShickTrustindex verifies that the original source of the review is Google. This experience has completely changed my skin. Melissa did an amazing job making me feel comfortable about microneedling throughout the entire session. I cannot recommend her services enough. With her years of experience, you’ll not only leave with a glow, but also a ton of knowledge about your skin.
Part of Your Metabolic Health Care
Medical weight loss is one component of broader Metabolic Health care at Aetheria. Here is where it connects.
Metabolic Health
Medical weight loss is one component of the broader Metabolic Health program at Aetheria. See how it connects to peptide therapy, nutritional guidance, and continuity care.
Peptide Therapy
NAD+, sermorelin, ipamorelin, tesamorelin, and GHK-Cu protocols that fit alongside GLP-1 therapy at every phase.
Vitamin Injections
Super MIC, B-Complex, and glutathione. Super MIC is the lipotropic injection most often considered as nutritional support during active weight loss.
Sculptra
Poly-L-lactic acid collagen biostimulation for adults concerned about facial volume loss after significant weight loss.
Morpheus8
InMode Luxora Morpheus8 Burst, minimally invasive radiofrequency microneedling for those concerned about skin laxity after significant weight loss.
Quantum RF
InMode Luxora Quantum RF, minimally invasive radiofrequency contouring for those considering what comes next after significant weight loss.
Visit Aetheria in Ross Township, Pittsburgh’s North Hills
Medical weight loss at Aetheria Aesthetics & Wellness™ is by consultation. We serve patients across Ross Township and Pittsburgh’s North Hills, including Wexford, Cranberry Township, Sewickley, and Mars. Book online or call to schedule your initial in-person consultation with Melissa Kolowitz, PA-C.
Sola Salon, 1000 Ross Park Mall Dr Suite 4B
Pittsburgh, PA 15237
(412) 385-3191 ·
[email protected]