Should you cycle GLP-1s like semaglutide or tirzepatide?

“GLP-1s are really not intended to be cycled. That doesn't mean that people can't take breaks. They certainly can,” says Dr. Jonathan Snipes, MD. “But they're really designed to be more continuous, long-term use medications. When people do stop, often weight tends to creep back.”

Is there one cycling rule for all peptides?

No. “It's hard to give an overall rule for all peptides, because it varies peptide to peptide,” says Dr. Snipes. Rx Peps Direct gives cycling guidance per peptide.

Which Peptides Should You Cycle? A Doctor on GLP-1s, Healing Peptides and GH Peptides

Name: Which Peptides Should You Cycle? A Doctor on GLP-1s, Healing Peptides and GH Peptides
Creator: Dr. Jonathan Snipes
Published: 2026-10-27

One of the most common things that we get asked about is cycling. The answer very much depends on the peptide and what it's being used for.

3 min read · Updated October 27, 2026

By Dr. Jonathan SnipesMedical Director, Rx Peps Direct

Medically reviewed by Dr. Jonathan Snipes, MD. Last reviewed October 29, 2026.

Quick Answer

It depends on the peptide. GLP-1s are designed for continuous, long-term use; breaks are fine, but weight tends to creep back. BPC-157 and TB-500 are used in the healing phase, then stopped. Growth hormone peptides like CJC-1295 and ipamorelin run five days on, two days off, and some people also take three months on and then one month off.

GLP-1s are really not intended to be cycled

Starting out with some of the obvious ones, for example, GLP-1s, they’re really not intended to be cycled. That doesn’t mean that people can’t take breaks. They certainly can. If you achieve your weight loss goal and you want to take a break and see how you do, that’s perfectly fine. But they’re really designed to be more continuous, long-term use medications.

When people do stop, often weight tends to creep back. So you have to monitor and work with people individually.

In trials, people regained two-thirds of lost weight within a year of stopping semaglutide^[1] and 14% in body weight within 52 weeks of stopping tirzepatide.^[2]

Healing peptides: a course, then off

The opposite of that: healing medicines like BPC-157 and TB-500. They could be taken for longer periods of time, but typically are used more in the healing phase, to try to benefit a specific injury.

And then when you’re doing well, a lot of people say, well, I don’t need it right now. And that’s also okay. They can come off, and then we hope that you don’t get re-injured again, but should something come back, we can always look at another course. See tendon and ligament injuries.

Growth hormone peptides: five days on, two days off

And then there’s really a third category of things that need to be cycled, and I’m thinking specifically about growth hormone related peptides there. For example, CJC-1295, ipamorelin, et cetera. Those we typically run on a schedule of five days on, two days off.

Your body naturally releases growth hormone in pulses, not all the time. The idea is to work with that rhythm and to mimic our natural rhythm, to be as close to physiologically active as possible.^[3]

There are also people who then take complete breaks, for example, three months on and then one month off. See the CJC-1295/Ipamorelin guide.

It varies peptide to peptide

So it’s hard to give an overall rule for all peptides, because it varies peptide to peptide. That being said, when you work with us, we will give you guidance on each specific peptide. We will individualize it to you and tell you exactly: yes or no, should I be cycling this off? And if so, when?

More in peptide cycling and tolerance and how many peptides you can stack.

How to get a peptide with a cycling plan

Human-use peptides need a prescription and a 503A pharmacy. At Rx Peps Direct, a licensed provider reviews your history for a $39 medical review per order, covering up to three peptides. If approved, a licensed U.S. 503A pharmacy prepares it pre-reconstituted and bills the medication at wholesale, in 28 states plus Washington, DC. Browse peptides.

This article is educational and is not medical advice. Compounded peptides, including compounded GLP-1s, are not FDA approved.

Sources

Wilding JPH, et al. Weight regain and cardiometabolic effects after withdrawal of semaglutide: the STEP 1 trial extension. Diabetes Obes Metab. 2022;24(8):1553-1564. doi.org/10.1111/dom.14725
Aronne LJ, et al. Continued treatment with tirzepatide for maintenance of weight reduction in adults with obesity: the SURMOUNT-4 randomized clinical trial. JAMA. 2024;331(1):38-48. doi.org/10.1001/jama.2023.24945
Ionescu M, Frohman LA. Pulsatile secretion of growth hormone (GH) persists during continuous stimulation by CJC-1295, a long-acting GH-releasing hormone analog. J Clin Endocrinol Metab. 2006;91(12):4792-4797. doi.org/10.1210/jc.2006-1702

Common questions about cycling peptides

Should you cycle GLP-1s like semaglutide or tirzepatide?: “GLP-1s are really not intended to be cycled. That doesn't mean that people can't take breaks. They certainly can,” says Dr. Jonathan Snipes, MD. “But they're really designed to be more continuous, long-term use medications. When people do stop, often weight tends to creep back.”
Do you cycle BPC-157 and TB-500?: They are typically used as a course. BPC-157 and TB-500 “could be taken for longer periods of time, but typically are used more in the healing phase, to try to benefit a specific injury,” says Dr. Snipes. When you're doing well, you can come off, and “should something come back, we can always look at another course.”
How do you cycle CJC-1295 and ipamorelin?: “Those we typically run on a schedule of five days on, two days off,” says Dr. Snipes. “Your body naturally releases growth hormone in pulses, not all the time. The idea is to work with that rhythm.” Some people also take complete breaks, “for example, three months on and then one month off.”
Is there one cycling rule for all peptides?: No. “It's hard to give an overall rule for all peptides, because it varies peptide to peptide,” says Dr. Snipes. Rx Peps Direct gives cycling guidance per peptide.

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