Updated provider reviews
Offers and terms checked October 15, 2026. These two reviews are unscored.
- WeightCare review: compare the initial package with the refill bill
WeightCare semaglutide and tirzepatide package prices, renewal differences, refund limits and questions about the pharmacy and service area.
- Good Life Meds review: first-order discounts and the renewal deadline
A source-based review of Good Life Meds semaglutide and tirzepatide offers, package totals, clinical partners and cancellation conditions.
Sema VS Tirz
A comprehensive comparison between Semaglutide and Tirzepatide - two leading GLP-1 receptor agonists for weight management and diabetes. Below you will find how they work, what the trials found beyond weight loss, and a planner that estimates how long your own goal would take.
Why GLP-1 medications work when diets do not
GLP-1 is a hormone your gut already releases after you eat. These medications are engineered copies of it that last a week instead of a few minutes. That single change addresses the biology behind obesity - hunger signaling, gastric emptying, blood sugar, and the weight your body defends - rather than asking you to out-discipline it.
It turns down the food noise
GLP-1 receptors sit in the hypothalamus and brainstem, the regions that set hunger and food reward. Activating them quiets the constant background chatter about food that willpower alone never reaches.
Your stomach empties more slowly
Food lingers longer, so fullness arrives earlier in a meal and lasts for hours afterward. Most people find they stop eating halfway through portions that used to feel normal.
Insulin and glucagon get sharper
GLP-1 boosts glucose-dependent insulin release and suppresses glucagon, flattening the post-meal blood sugar swings that drive cravings. Tirzepatide adds a second hormone, GIP, on top of that.
It lowers your defended weight
Your body fights weight loss by slowing metabolism and raising hunger back to a set point. GLP-1s appear to lower that defended weight, which is why the loss holds while you stay on treatment.
Want the deeper version? Read how GLP-1 medications work or why your weight set point fights back.
Semaglutide
Mimics the GLP-1 hormone, which regulates appetite and food intake. It slows gastric emptying and increases feelings of fullness after eating.
Tirzepatide
A dual-action medication that mimics both GLP-1 and GIP hormones. This dual mechanism may provide enhanced metabolic benefits and greater weight loss potential.
Goal weight
180 lbs
Of your body weight
18.2%
Estimated timeline
~12 mo
Time to your goal on each medication
Semaglutide
Ozempic, Wegovy
~33 lbs
the average result by month 18 - your 40 lb goal sits above it
Tirzepatide
Best fit for youMounjaro, Zepbound
~12 months
to lose 40 lbs at the average trial pace
Projected progress on tirzepatide
Month 3
203 lbs
-17 lbs
Month 6
191 lbs
-29 lbs
Month 12
180 lbs
-40 lbs
Estimates use the average results from SURMOUNT-1: -20.9% average body weight at 72 weeks. Individual results vary widely - some people lose more, some lose less, and results depend on dose, diet, activity, and how long you stay on treatment.
To lose 40 lbs, we recommend compounded tirzepatide through CoreAge Rx
CoreAge Rx is our #1 rated provider out of the dozens we've reviewed. They prescribe compounded tirzepatide from $299/mo with no membership fee - versus $1,000-$1,400/month for the brand-name equivalents.
This planner is an educational estimate, not medical advice or a promise of results. Only a licensed clinician can decide whether a GLP-1 is appropriate for you.
What GLP-1s do besides make the number go down
The weight loss gets the headlines, but the outcome trials found effects across the heart, kidneys, liver, joints, and sleep. Every figure below comes from a named phase 3 trial.
20% lower risk
Fewer cardiovascular events
In SELECT (NEJM, 2023), semaglutide 2.4 mg cut major adverse cardiovascular events - heart attack, stroke, and cardiovascular death - by 20% in adults with existing heart disease and overweight or obesity, without diabetes.
Up to 2.5% A1C
Better blood sugar control
Across the SURPASS trials, tirzepatide lowered A1C by roughly 1.9% to 2.6%. Semaglutide typically lands in the 1.5% to 2.0% range. Both carry a low risk of hypoglycemia on their own.
24% risk reduction
Kidney protection
The FLOW trial (NEJM, 2024) was stopped early for efficacy after semaglutide reduced major kidney events by 24% in people with type 2 diabetes and chronic kidney disease.
~30 fewer events/hour
Sleep apnea relief
In SURMOUNT-OSA (NEJM, 2024), tirzepatide reduced the apnea-hypopnea index by up to about 63% in people with moderate-to-severe obstructive sleep apnea and obesity.
-41.7 WOMAC points
Less knee osteoarthritis pain
STEP 9 (NEJM, 2024) found semaglutide cut knee osteoarthritis pain by 41.7 points on the WOMAC scale at 68 weeks, versus 27.5 points on placebo.
36.8% fibrosis improvement
Liver disease improvement
In the phase 3 ESSENCE trial (NEJM, 2025), semaglutide 2.4 mg improved liver histology in MASH, with 36.8% of patients showing reduced fibrosis and no worsening steatohepatitis at 72 weeks.
Multiple markers
Blood pressure and inflammation
Systolic blood pressure typically drops several points alongside weight loss, and markers like triglycerides and hsCRP improve. These are consistent secondary findings across the STEP and SURMOUNT programs.
Reported across trials
Physical function and quality of life
Trial participants report better physical function scores, easier movement, and the return of mental bandwidth that used to go toward thinking about food.
Each result was measured in a specific population - most often adults with obesity plus the condition being studied. They are not guarantees, and not every benefit applies to every patient.
What your first year actually looks like
Starting dose
You begin at 0.25 mg semaglutide or 2.5 mg tirzepatide. This dose exists to let your gut adapt, not to drive weight loss. Expect a few pounds and slightly smaller portions.
Titration begins
The dose steps up roughly every four weeks. Appetite suppression becomes unmistakable. Most people are down 5-8% of their starting weight by the end of month three.
The steepest stretch
You reach a therapeutic dose and loss accelerates. Averages land near 10% of starting weight on semaglutide and closer to 13% on tirzepatide.
Steady, slower progress
The curve flattens but keeps moving. At the one-year mark, trial averages sit around 14% on semaglutide and 18-19% on tirzepatide.
Plateau and maintenance
Loss levels off near 15-17% on semaglutide and 20-22% on tirzepatide. The work shifts to protein, resistance training, and a maintenance dose. Stopping matters: STEP 1 participants regained about two-thirds of their lost weight within a year of coming off.
See the full dosage and titration schedule or what to expect month by month.
- BMI of 30 or higher
- BMI of 27 or higher with a weight-related condition such as type 2 diabetes, high blood pressure, sleep apnea, high cholesterol, PCOS, or fatty liver disease
- Age 18 or older
- Willing to inject once weekly and check in with a prescriber regularly
- No contraindications from the list to the right
GLP-1 questions people actually ask
How much weight can I actually expect to lose on a GLP-1?
In the pivotal trials, semaglutide 2.4 mg produced an average loss of 14.9% of body weight at 68 weeks (STEP 1), and tirzepatide 15 mg produced 20.9% at 72 weeks (SURMOUNT-1). On a 220 lb starting weight that is roughly 33 lbs and 46 lbs respectively. Individual results vary widely in both directions.
Is semaglutide or tirzepatide better for weight loss?
Head-to-head data favors tirzepatide for total weight loss. In a direct comparison, tirzepatide patients lost about 20.2% versus 13.7% on semaglutide. Semaglutide has the longer safety record and more cardiovascular outcome data, and it is significantly cheaper, so it remains the right starting point for many people.
How fast will I see results?
Most people notice reduced appetite within the first two to three weeks, though the starting dose is deliberately low. Visible weight loss usually begins in month two as the dose is titrated up, and the fastest stretch of loss typically falls between months four and six.
Do I have to stay on a GLP-1 forever?
GLP-1s treat obesity as a chronic condition, the way blood pressure medication treats hypertension. When STEP 1 participants stopped semaglutide, they regained about two-thirds of their lost weight within a year. Many people move to a lower maintenance dose rather than stopping outright.
Is compounded semaglutide the same as Ozempic or Wegovy?
Compounded semaglutide from a 503B outsourcing facility contains the same active molecule as the brand-name products. The differences are the delivery format, usually a vial and syringe rather than a pen, and the fact that compounded versions are not FDA-approved products themselves. Sourcing from an FDA-registered 503B facility is the key quality signal.
What do GLP-1 medications cost without insurance?
Brand-name GLP-1s run roughly $900 to $1,400 per month at retail. Compounded options through telehealth providers start near $99 per month for semaglutide and around $299 per month for tirzepatide. CoreAge Rx is our top-rated provider, starting at $79 per month on a 12-month plan.
What are the most common side effects?
Nausea, vomiting, diarrhea, constipation, and reduced appetite are the most common, and they are usually worst in the days after a dose increase. Slower titration, smaller meals, and adequate hydration resolve most cases. Rare but serious risks include pancreatitis and gallbladder disease.
Who should not take a GLP-1 medication?
Anyone with a personal or family history of medullary thyroid carcinoma or MEN2 syndrome should not take these medications. They are also not appropriate during pregnancy or breastfeeding, and people with a history of pancreatitis, severe gastroparesis, or an eating disorder need specialist oversight before starting.
The information on this page is educational and is not medical advice. Trial figures describe averages in studied populations, not promised results. Talk to a licensed clinician before starting, stopping, or changing any medication. Read our medical disclaimer.