CommunityPlateaus & Non-Response

Reta (+Cagri) stopped working

32 replies11 peopleMar 23, 2026☆ Follow
Summary

Why did retatrutide plus cagrilintide suddenly lose its appetite-suppressing effect after months of good results, and is tesamorelin the cause?

The original poster reports that 12 mg reta plus 1.2-1.5 mg cagri no longer curbs hunger after 21 kg lost, despite holding doses for four weeks and tracking calories and protein. Several users point to tesamorelin as a likely culprit because it raises GH, which can increase appetite, water retention, and insulin resistance, flattening the scale even if fat loss continues. Others suggest metabolic adaptation, receptor changes, or simply needing higher or split doses of the GLP agonists. The thread explores stacking alternatives, lowering reta temporarily, or going low-carb, but reaches no single conclusion.

What this discussion establishesWhere people disagree

Whether tesamorelin is helping or actively interfering, and whether raising, splitting, or lowering the reta dose is the better next step.

Still open

The exact reason the current stack stopped working for this user and whether stopping tesa would restore the effect.

Nothing here is advice.

32 replies · 11 people
BrightSignal73archiveopening postMar 23

I started retatrutide around September and it worked great at first with strong appetite control and easy deficits of 300-500 or even 1000 calories, dropping 21 kg from 128 kg down to 107 kg. Lately at 12 mg reta plus 1.2-1.5 mg cagrilintide it feels like nothing is happening. The satiety is gone, hunger has returned strongly, and meals no longer end on their own. I hold each dose for four weeks and usually need higher amounts than most people to feel anything. I noticed reta at 6 mg. I added tesamorelin a few weeks ago and wonder if that is getting in the way. Stats are about 170 cm, 106 kg, 38 male, 170 g protein, calories tracked and adjusted, workouts one or two times a week while caring for two young kids.

CopperMarble87archiveMar 23

I know at least three people on 20 mg of reta right now, one of them female.

LevelCinder55archiveMar 23

Getting up to twelve milligrams left me stuck with no further progress and feeling ill. Quite a high amount. In my situation I split that amount and combined it with another medication since reports indicate it handles appetite more effectively. Although I never tried the second one myself accounts from others showed the pairing outperformed the first substance by itself. On my own adding a different compound quickened how fast the pounds came off. It might also mean the batch I received was not effective. Being unsure of the total quantity I had checking a single container seemed worthwhile to me.

BrightSignal73archiveMar 23
↳ replying to @LevelCinder55

Reta is from a tested batch so it should be fine. I already tried adding tirz and going back to reta but it worked less than reta alone. I was on 8 mg reta and 6 mg tirz.

BrightSignal73archiveMar 23
↳ replying to @CopperMarble87

Those three people, are they still losing weight?

LevelCinder55archiveMar 23
↳ replying to @BrightSignal73

You are trying a lot of things. More exercise might help. HGH could also help but has drawbacks. Not everyone responds the same to these peptides. I hear a lot about tesa and ipamorelin improving sleep but both keep me awake and I wake up during the night. I dropped ipamorelin and plan to double the tesa dose while using it half as often to get better sleep.

WarmLedger65archiveMar 23

I wonder what my daily intake numbers look like these days. A couple folks mentioned hitting a plateau until they raised what they consumed and then progress picked back up. It seems the system knows more than we realize and when it senses a lack of fuel it pushes back somehow. This may not apply here but I have been thinking about whether mine are too restricted.

BrightSignal73archiveMar 23
↳ replying to @LevelCinder55

Not sure tesa improves sleep. For me it feels like going to sleep, waking up, and thinking I only slept half an hour.

BrightSignal73archiveMar 23
↳ replying to @WarmLedger65

Calories were low and now sit at a 100-200 calorie deficit, but that change started only last week and does not seem to have helped.

AmberMarble48archiveMar 23

For hunger and food noise you could try 7 mg every 3.5 days. That keeps the same peaks as 12 mg weekly with no extra sides but raises the valleys and average level. I tried it and it helped a bit, then added 0.25 mg cagri and the noise disappeared completely.

WarmSparrow60archiveMar 23

Tesa raises the ghrelin hormone and that effect fades once the cycle ends.

CopperSignal27archiveMar 24

Two things stand out. First, tesamorelin stimulates HGH which can raise appetite and cause fluid retention that might hide further scale movement. Stopping it should let any extra water drop in a week or two. Second, after losing a lot of weight like your 16 percent, energy expenditure falls because there is less tissue burning calories and metabolic adaptation sets in from the long deficit.

CopperMarble87archiveMar 24

Reta at higher doses works differently, not exactly like food noise but it can affect heart rate. Cagri has been used up to 5 mg though it is not for everyone.

PatientHarbour61archiveMar 24
↳ replying to @LevelCinder55

Take it in the morning. Ipamorelin is the ghrelin agonist, not tesa, so that could explain your sleep issues. Tesa is generally weight neutral but can cause water retention. I gained about 5 kg of water on it and it left after I stopped. GH raises both food intake and energy use so the net is near neutral, yet you may eat more and see the scale move from water. If you are using tesa with ipa I would drop the ipa for now.

BrightSignal73archiveMar 24
↳ replying to @PatientHarbour61

It is just tesa at the moment. I wanted to try HGH later but had tesa on hand so I started with that.

BrightSignal73archiveMar 24

The explanations are helpful. I also have high tolerance to most medications like ibuprofen, tramadol, and nasal sprays. My doctor mentioned a possible gene variant or cortisol, but morning cortisol checks have been normal.

IronPebble47archiveMar 24

It could be the tesa interfering. You might be a high responder and it can increase hunger, insulin resistance, and blood sugar. The glucagon part of reta tells the liver to release glucose, so both could raise blood sugar while tesa adds resistance. GLP-1 signaling is sensitive to that context. Receptor desensitization is possible but since cagri also stopped working it points more to blood sugar. Options are to pause tesa, go low carb, or try lowering reta temporarily. Stress can worsen insulin resistance too, and a glucose meter might be useful to check.

SharpCinder28archiveMar 24
↳ replying to @BrightSignal73 (opening post)

Optional non-GLP peptides are a nice distraction during stalls. I just ordered a vial of PE-22-28 to try. As long as weight is not rising beyond possible water from tesa you could keep going and focus on body composition and bloodwork instead of the scale. You already seem to be maintaining muscle. Besides cagri, sema is another common stack with reta. Are you fasting around tesa doses? My own GH peptide use pushed me into intermittent fasting. Lower dosing or five days on two off might reduce water retention if you stay on tesa.

AmberMarble48archiveMar 24
↳ replying to @SharpCinder28

Instead of five on two off, someone is alternating tesa 2 mg three times a week with ipa plus CJC 200 mcg three times a week and reports no sides. That sounds workable.

SharpCinder28archiveMar 24
↳ replying to @AmberMarble48

I am cautious about systemic reactions and wonder if anyone has obtained EpiPens as backup for possible anaphylaxis, including how they got the prescription.

CopperSignal27archiveMar 25

Higher doses may eventually be accepted for people who show low response and few sides, but not for those limited by sides. Studies so far on sema at 7.2 and 16 mg showed extra loss but more sides. The tirz higher-dose trial is still running. It would be useful to test higher doses specifically in the low-responder group, though that is unlikely soon. Anecdotal reports online are interesting but not solid data.

SlowLedger42archiveMar 25

One obvious possibility not mentioned yet is that tesa raising GH could be adding muscle mass. You might still be losing fat while the scale stays flat from lean-mass gains. The other points raised earlier cover the rest.

CopperSignal27archiveMar 25

A previous similar thread had a weight graph that stayed flat right after HGH-related drugs were added. If you have a record or graph it could show whether loss slowed gradually or stopped abruptly when tesa started, which would point to the cause.

AmberMarble48archiveMar 25
↳ replying to @SharpCinder28

You have me worried about CJC allergic reactions even after long use. If the goal is just to keep GH pulsing on the alternating days with ipa, would sermorelin be safer?

SharpCinder28archiveMar 25
↳ replying to @AmberMarble48

Sermorelin is milder overall, especially on IGF-1. For immune reactions it seems better than tesa and better than ipa with CJC. Anecdotally ipa with CJC raises the most concern. HGH itself is least likely to trigger a reaction. My ipa with CJC vial is still sealed and I would start very low if I use it. Now I am also cautious about tesa even though I have not started it.

AmberMarble48archiveMar 25

At my age and IGF-1 score a ceiling around plus 100 seems a safe starting point. After more than 12 mg reta plus cagri I think visceral abdominal fat is now the main remaining issue. Tesa might help with that.

BrightSignal73archiveMar 25
↳ replying to @SharpCinder28

Yes, I do not eat after 7 pm and pin at 10 pm.

BrightSignal73archiveMar 25
↳ replying to @CopperSignal27

I track weekly weights. Progress stopped about seven weeks ago while tesa started five weeks ago. Since then it just fluctuates half a kilo up and down.

SharpCinder28archiveMar 25
↳ replying to @AmberMarble48

That calculator is a wake-up call though it feels overly dramatic. Lab results would be more reliable than scales for actual health markers.

AmberMarble48archiveMar 26
↳ replying to @SharpCinder28

My scale just showed a healthy lean-mass percentage for the first time even though weight has not moved in a week.

AmberMarble48archiveMar 26

Water percentage is also up. I took my first tesa 1 mg plus ipa 100 mcg last night but I am not counting on miracles.

AmberMarble48archiveMar 26
↳ replying to @SharpCinder28

Waist-to-height target under 34.5 inches at my height and thigh circumference as a metabolic sink are the inputs the calculator uses.

AmberMarble48archiveMar 28

I am moving ahead with only tesa plus ipa, no CJC, no off days, titrating up to 2000/250 mcg until waist measurement drops. I am also wearing a CGM now.

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Reta (+Cagri) stopped working · ZyraTrack Community