Tirzepatide vs Retatrutide: Today's Medication vs Tomorrow's
One acts on two hormone pathways and is available now; the other acts on three but is investigational and not for sale anywhere. Here is the honest comparison.
The short answer
Tirzepatide is a dual-hormone medication available today; New Hope Weight Loss offers it in compounded form. Retatrutide is an investigational triple-hormone medication with striking early trial numbers, but it is not FDA-approved and not for sale anywhere. So this is really a comparison of what you can start now versus what is still years away.
Mechanism
Tirzepatide acts on two pathways, GIP and GLP-1. Retatrutide is designed to act on three, GIP, GLP-1, and glucagon, with the glucagon component thought to raise energy expenditure. More pathways is not automatically safer or better for any individual; it is simply what researchers are testing.
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$199 Skeptics’ Trial, see if it works for you
One month of medical-grade compounded semaglutide, the $119 doctor review, and a free B-12/lipotropic injection. No long-term commitment.
Start the 30-day trialWhat the trials showed
In SURMOUNT-1 (Jastreboff et al., NEJM, 2022; PMID 35658024), tirzepatide 15 mg produced an average of about 20.9 percent body-weight loss at 72 weeks. For retatrutide, per an Eli Lilly press release dated May 21, 2026, the Phase 3 TRIUMPH-1 trial reported about 28.3 percent at 80 weeks on the 12 mg dose. Those tirzepatide figures come from a peer-reviewed trial of the brand drug; the retatrutide figures come from a company press release and are not yet peer-reviewed, and retatrutide remains investigational.
The honest bottom line
Retatrutide is the most-watched future drug, but it is not approved, not for sale, and only available through the manufacturer's clinical trials. Any site offering to sell it is a red flag. Tirzepatide is available now; the compounded version we provide is not FDA-approved or brand-identical, and results vary. If you want to act today, tirzepatide is the real option of the two.
What we offer at New Hope Weight Loss today
After a one-time $119 medical review with Dr. Sharma, eligible patients begin a physician-supervised program with compounded semaglutide from $166 a month or compounded tirzepatide from $233 a month, with a $199 one-month Skeptics' Trial. Compounded semaglutide and tirzepatide are prepared by licensed U.S. pharmacies and are not FDA-approved, not brand-identical, and not reviewed by the FDA for safety, effectiveness, or quality. Care is delivered in person in Orange County and by telehealth across California and additional states.
Frequently asked questions
Is retatrutide better than tirzepatide?
Early retatrutide trial numbers are higher (about 28.3 percent at 80 weeks in TRIUMPH-1 per a May 2026 Lilly press release, versus about 20.9 percent for tirzepatide 15 mg in SURMOUNT-1, PMID 35658024). But retatrutide is investigational and not for sale, the data is not yet peer-reviewed, and higher average loss is not automatically safer or right for any individual. Tirzepatide is available today.
Can I buy retatrutide anywhere?
No. Retatrutide is investigational, not FDA-approved, and not for sale at any clinic or pharmacy. It is only available through the manufacturer's clinical trials. Any website offering to sell retatrutide is offering an unapproved grey-market product, which is unsafe.
Does New Hope Weight Loss offer tirzepatide?
Yes, in compounded form. After a $119 medical review, eligible patients can begin physician-supervised compounded tirzepatide from $233 a month. Compounded tirzepatide is prepared by a licensed U.S. pharmacy and is not FDA-approved or brand-identical.
When will retatrutide be available?
There is no confirmed date. As of mid-2026 there is no FDA filing; secondary sources suggest a possible submission around the end of 2026 and approval roughly 2027 to 2028, and Lilly itself says approval is not guaranteed. Treat any specific launch date you see as a projection, not a promise.
Should I wait for retatrutide instead of starting tirzepatide?
That is a personal decision for you and a physician, but waiting means waiting on an uncertain date that may be years away. Many people start with an available, physician-supervised option now and reassess as genuinely new drugs are approved. We will keep you honestly informed.
This article is informational only and not medical advice. Speak with a licensed physician before starting or changing any GLP-1 therapy. Individual results vary. New Hope Weight Loss is a physician-supervised medical weight loss clinic in Costa Mesa, CA. Eligibility for treatment is determined during the medical consultation. Compounded semaglutide and compounded tirzepatide are not the same products as Wegovy®, Ozempic®, Mounjaro®, or Zepbound®.