What is semaglutide and how does it work for weight loss?

Semaglutide is a GLP-1 receptor agonist — a class of medication that mimics a natural hormone your body uses to regulate appetite and blood sugar. It works by stimulating insulin release, slowing gastric emptying so you feel full longer, and reducing the hunger signals your brain receives throughout the day. Clinical trials showed an average weight loss of 15% of body weight in patients using semaglutide.

What is tirzepatide and how is it different from semaglutide?

Tirzepatide is a dual GIP and GLP-1 receptor agonist — it activates two hormone pathways rather than one, which can produce even greater weight loss results. Clinical trials showed average weight reductions of up to 22% of body weight. Both are FDA-approved for chronic weight management and available at Desert Sands.

Is medical weight loss supervised by a doctor at Desert Sands?

Yes. All medical weight loss programs at Desert Sands are overseen by our medical director, Dr. Eric Evans, MD, a board-certified physician. Treatment begins with an in-depth consultation and health evaluation before any medication is prescribed.

How much weight can I expect to lose?

Clinical trial results vary by individual and medication. Patients using semaglutide lost an average of 15% of body weight in trials; tirzepatide showed averages of up to 22%. Results depend on your starting weight, health profile, dose progression, and lifestyle habits. We set realistic expectations during your consultation.

Do I need to change my diet or exercise while on GLP-1 medication?

GLP-1 medications work best alongside changes in nutrition and activity. Our team provides guidance on both as part of your program. We can recommend exercise and nutritional options that complement your medical weight loss plan and are appropriate for your health profile and goals.

Who is a good candidate for semaglutide or tirzepatide?

The FDA has approved semaglutide and tirzepatide for chronic weight management in adults with obesity (BMI 30+) or in overweight adults (BMI 27+) who have at least one weight-related health condition such as high blood pressure, type 2 diabetes, or high cholesterol. We review your health history in a consultation before prescribing.

Medical Weight Loss & Semaglutide in St. George, UT

Overview

What is medical weight loss?

Medical weight loss is a physician-supervised program that uses prescription medications — specifically GLP-1 receptor agonists like semaglutide and tirzepatide — to address the physiological barriers to weight loss that diet and exercise alone can't always overcome. At Desert Sands, we are serious about your long-term health and well-being, not just the number on the scale.

We customize every plan based on your individual health profile, lifestyle, and goals. Our team can also recommend exercise and nutritional strategies that work in concert with your medication to maximize results and sustain them long-term.

FDA-approved semaglutide and tirzepatide available
Comprehensive health evaluation before prescribing
Personalized dosing with ongoing monitoring
Nutrition and lifestyle guidance included
All programs overseen by Dr. Eric Evans, MD

Dr. Eric Evans, MD — Medical Director, Desert Sands Aesthetics & Laser

The Medications

Semaglutide & Tirzepatide.

Both medications are FDA-approved for chronic weight management and represent the most clinically significant advancement in non-surgical weight loss in decades. We offer both — and help you determine which is the right fit.

GLP-1 Receptor Agonist

Semaglutide

FDA Approved · Chronic Weight Management

Semaglutide mimics the GLP-1 hormone your body naturally produces after eating. It regulates appetite and blood sugar by stimulating insulin release, slowing gastric emptying, and reducing hunger signals throughout the day. The result is feeling fuller sooner, eating less naturally, and sustained blood sugar control.

15% average body weight reduction in clinical trials

Dual GIP + GLP-1 Receptor Agonist

Tirzepatide

FDA Approved · Chronic Weight Management

Tirzepatide activates two hormone pathways — GIP and GLP-1 — rather than one. This dual mechanism produces more powerful appetite regulation, improved insulin sensitivity, and significantly greater weight loss outcomes than single-pathway medications. For many patients, it represents the most effective non-surgical option available.

22% average body weight reduction in clinical trials

How It Works

The science behind GLP-1.

GLP-1 medications work through three distinct and complementary pathways to produce meaningful, sustained weight loss.

01

Appetite Regulation

GLP-1 medications bind to receptors in the brain that control hunger and satiety. Patients experience significantly reduced food cravings, less "food noise," and a natural reduction in how much they want to eat — without feeling deprived.

02

Blood Sugar Control

By stimulating insulin secretion from the pancreas in response to meals, GLP-1 receptor agonists help keep blood sugar levels stable. This reduces energy crashes, fat storage signals, and the cycle of hunger that follows blood sugar spikes.

03

Delayed Gastric Emptying

These medications slow how quickly food moves through the stomach, extending the feeling of fullness well beyond a meal. Patients naturally consume fewer calories over the course of a day without conscious restriction.

Candidacy

Who is a good candidate?

The FDA has approved semaglutide and tirzepatide for chronic weight management in adults with obesity or in overweight adults with at least one weight-related health condition. You may be a strong candidate if any of the following apply:

BMI of 30 or higher (obesity)
BMI of 27 or higher with a weight-related condition such as high blood pressure, type 2 diabetes, or high cholesterol
Persistent weight gain despite consistent diet and exercise efforts
Insulin resistance or pre-diabetes
Relentless food cravings or hunger that undermine consistency
Weight loss plateau after years of effort
Weight gain associated with hormonal changes (menopause, andropause)

A consultation and health evaluation are required before any prescription is written. We review your full health history, current medications, and goals to confirm the right medication and starting dose.

A note on candidacy

GLP-1 medications are not appropriate for everyone. Patients with a personal or family history of medullary thyroid carcinoma or Multiple Endocrine Neoplasia syndrome type 2, or those who are pregnant or breastfeeding, are not candidates. We discuss your complete medical history before recommending any program.

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What to Expect

Dosing, timeline, & results.

Administration

Weekly Injection

Both semaglutide and tirzepatide are administered as a once-weekly subcutaneous injection — a simple, fine-needle injection just under the skin, typically in the abdomen or thigh. We guide you through self-administration at your first appointment.

Onset

4–8 Weeks

Most patients begin noticing appetite changes within the first few weeks. Visible weight loss typically becomes apparent after one to two dose increases, usually within the first month to six weeks.

Downtime

None

There is no downtime. You return to normal activity immediately after your injection. Some patients experience mild nausea in the early weeks as the body adjusts — this typically resolves as your dose stabilizes.

Pricing

Consultation Required

Pricing depends on the medication, dose, and program duration. We discuss all costs transparently at your consultation with no obligation to proceed. Most patients find the cost comparable to or less than other medically supervised programs.

The Program

From consultation to results.

01

In-Depth Consultation

We begin with a comprehensive health evaluation — reviewing your medical history, current medications, weight history, and goals. There is no generic protocol; Desert Sands Aesthetics & Laser customizes every plan around the individual in front of us.

02

Prescription & Guidance

Dr. Eric Evans, MD reviews your evaluation and prescribes the appropriate medication and starting dose. We walk you through self-injection technique, what to expect in the first weeks, and how to pair nutrition and activity with your medication for optimal results.

03

Ongoing Monitoring

We monitor your progress and adjust your dose as needed throughout your program. Our team is available for questions between appointments, and we track your results against your goals to keep your program on course for the long term.

Why Desert Sands

Care you can trust.

Desert Sands Aesthetics & Laser is serious about your long-term health and well-being — not just the number on the scale. We are a premium, locally owned med spa founded in 2020 and voted Best of Southern Utah five years running (2021–2025). Medical weight loss programs are overseen by Dr. Eric Evans, MD, a board-certified physician, and supported by Shannon Evans, RN, BSN, a registered nurse with twenty-eight years of healthcare experience.

Life is too short to not live your best life. We are here to help you feel better, look better, and get on a path to optimal health — with honest guidance, conservative prescribing, and a plan built entirely around you.