Barbara Kowalczyk, FNP-BC
Board-certified nurse practitioner · Director of Medical Spa Services
Leads injectable treatment planning and has directed medical spa services at the Downers Grove practice since 2019, following an ICU nursing background.
Body & Wellness · Naperville, IL
Updated September 2026 · Independent review
GLP-1 weight-loss programmes use prescription medications such as semaglutide and tirzepatide, which mimic gut hormones to reduce appetite and slow gastric emptying. A legitimate programme includes lab work, a medical intake, gradual dose escalation, and scheduled follow-up — not a flat fee and a vial. Near Naperville, IL, the closest practice covered on this site is Skin Med Spa at 960 Warren Ave, Downers Grove, IL 60515, roughly 18 minutes away, where laser and skin treatments are performed by a licensed esthetician and certified laser technician.
Nearest practice
Skin Med Spa
960 Warren Ave, Downers Grove, IL 60515
Mon–Tue & Thu–Fri 10am–6pm, Sat 10am–3pm · closed Wed & Sun
Licensed esthetician / laser tech
~18 minutes from Naperville. No Naperville address exists.
GLP-1 receptor agonists (and dual GLP-1/GIP agonists such as tirzepatide) act on appetite-regulating pathways in the brain and slow how quickly the stomach empties, so you feel full sooner and longer. Dosing starts low and escalates over weeks specifically to limit nausea and vomiting. Weight loss is real and substantial in trials, and it is medication-dependent: appetite typically returns when the drug stops, which is why the maintenance and exit plan is the most important part of the conversation.
Adults meeting clinical criteria — generally a BMI of 30 or above, or 27 and above with a weight-related condition — who have had labs reviewed and can commit to regular follow-up.
Anyone with a personal or family history of medullary thyroid carcinoma or MEN2, anyone with a history of pancreatitis, anyone pregnant or planning pregnancy, anyone with severe gastroparesis, and anyone seeking cosmetic weight loss outside clinical criteria.
A prescribing clinician (MD, DO, NP, or PA) who reviews labs, history, and medications before writing the prescription.
| Treatment | GLP-1 Weight Loss |
|---|---|
| Category | Body & Wellness |
| Who performs it | Licensed esthetician / certified laser technician |
| Sessions typically needed | Weekly self-administered injections, with clinical follow-up every four weeks initially and at least quarterly thereafter. |
| Downtime | None, but nausea, constipation, reflux, and fatigue are common in the first weeks and after each dose increase. |
| How long results last | Sustained while treatment continues. Substantial regain is common after stopping without a structured maintenance plan. |
| How it is priced | Monthly programme fee, sometimes with medication billed separately. |
| Typical market cost | Commonly $300–$600 per month at med spas using compounded product; brand-name product through insurance varies enormously. Confirm exactly what the fee includes. |
| Nearest location | 960 Warren Ave, Downers Grove, IL 60515 — ~18 min from Naperville |
| Financing | Cherry payment plans |
| Price published by the practice | No — request it in writing at consultation |
Cost figures are typical Chicago-area market ranges for context, not quotes from this practice.
Quoted verbatim from public Google, Yelp, and practice-website reviews — nothing here is written or paraphrased by us. 1 of the reviews below name GLP-1 Weight Loss directly. Across its public profile the practice shows 4.9 stars from 298 reviews.
On Weight Loss
★★★★★
"Had an amazing experience at Skin Med Spa. Tried every diet out there. Decided to try the weight loss shots. I had great success and lost 35 lbs! Thrilled with the results."
On Atmosphere
★★★★★
"Enjoyed the event 23rd of April! Now I got to get my treatment. They are professional the spa is absolutely Beyoutiful and I'm over the moon on my experience & how my treatment came out. This spa is a class of it own. Barb & Mike and the Skin Med spa family are welcoming, absolutely professional & spa is impeccable. Will be looking forward to many more treatments with you all. As well as my whole family. Grateful, we came across each other! 5 stars across the board."
On Expertise
★★★★★
"Michael, as well as the rest of the staff are very knowledgeable and professional. The whole team is very nice! I will definitely be coming back. I would recommend this place to anyone!"
On Consultation
★★★★★
"Barbara was very thorough in explaining all types of procedures that I considered, what works best and cost. I would definitely recommend her."
On Results
★★★★★
"Barb is a magician! Absolutely love my results and looking to get more services done here. Already referred my aunt!"
On Results
★★★★★
"Very talented group, my results are much better now than when using other companies. Professional work and great products. I highly recommend this cheerful and talented group."
Board-certified nurse practitioner · Director of Medical Spa Services
Leads injectable treatment planning and has directed medical spa services at the Downers Grove practice since 2019, following an ICU nursing background.
Board-certified acute care nurse practitioner
A Rush University graduate with roughly two decades in cosmetic treatments and surgery, previously a partner at a surgery center and advanced cosmetic practice.
Certified laser technician & licensed esthetician
Performs laser resurfacing, hair removal, IPL, and medical-grade facial protocols.
Illinois licenses are public. Look up any provider through the Department of Financial and Professional Regulation before your first treatment.
Get an itemized price in writing, confirm which licensed provider is treating you, and ask to see the product or device. This site takes no bookings — the practice handles all of that at (630) 541-8413.