PepRank

Ipamorelin

42%positive51 reports

Also: 'ipa' · often blended 'CJC/Ipa'

ExcludedSleepRecoveryInjection

Selective ghrelin-receptor GH secretagogue; sleep and recovery, GH axis plus reactions.

Aib-His-D-2Nal-D-Phe-Lys-NH2: contains non-standard Aib and 2-naphthylalanine

#56 of 61 research peptides · updated
Access
Grey market
Cost / month
≈ €11–100
at 100–900 mcg/day · XL Peptides · €3.83/mg · no trust-4 shop lists it
≈ €16–22 at the 140–190 mcg/day users report
InjectionLasts 2–3 h

Builds over days or weeks of regular use rather than with each dose.

51 user reports
Glowing 5Positive 16Mixed 6Nothing 5Negative 10Bad reaction 9
  • @Mqsley· · 106 likesOriginal ↗

    Holy sh*t it worked. 100mcg of ipamorelin last night gave me my best sleep ever

    GlowingSleep · 100 mcg at night · Injection

    ipamorelin alone

  • @Lucas_Gallooo· · 10 likesOriginal ↗

    Holy crap when I took CJC-1295 no DAC and Ipamorelin for 10 weeks it changed my life! I felt like a superhero and my sleep was CURED. I slept like a tank I could get like 10 hours worth of sleep in only 6 and my rem and deep sleep like doubled.

    GlowingSleep · 10 weeks

    with CJC-1295 no DAC

  • @Cernovich· · 49 likesOriginal ↗

    Ipamorelin makes me feel like I'm starving to death. Sermorelin sends me into great sleep and I wake up feeling like I actually slept.

    NegativeSleep

    preferred sermorelin

Strict case
GH/IGF-1 axis elevation plus repeated anaphylaxis reports, including a coroner-attributed death.
Users report
Better sleep ('magical'), recovery and gradual body recomposition from weeks 6-8, almost always with CJC-1295. About 30-40% see little. Common complaints are hunger, night sweats, raised night heart rate and sleep disruption. Delayed allergic reactions (lumps, then itching, then flushing and breathlessness around week 8) recur. An Australian coroner (Oct 2026) attributed actor Richard Norton's 2025 death to anaphylaxis after CJC-1295/ipamorelin taken above the prescribed dose.
Best effects
Deeper sleep · recovery · slow fat loss / recomposition
Downsides
Hunger · flushing, head rush · water retention · night sweats / disturbed sleep
Watch
GH/IGF-1 axis elevation (glucose, theoretical neoplasm promotion) · Progressive hypersensitivity and anaphylaxis (case reports; coroner-confirmed death 2025, Australia) · FDA notes deaths in an IV ipamorelin gastric-motility study
Evidence
Small human studies — Phase 2 IV for post-operative ileus, failed
Typical use
100-300 mcg subQ 1-3x/day, typically at bedtime fasted, 5 on / 2 off. Users report 140–190 mcg/day (median 160 mcg, n=6).
Getting it
Never approved anywhere and on the FDA's Category 2 list, though some US and Australian anti-aging clinics still prescribe it. Most users buy research vials, usually a premixed CJC-1295/ipamorelin blend.
Stacked with
CJC-1295 (no DAC): The default pairing, usually in one vial; a GHRH plus a ghrelin agonist gives a bigger GH pulse. Most reports on this page are for the combo. · Retatrutide or tirzepatide: The dominant 2026 pattern: GLP-1 for fat loss, CJC/ipa for sleep and muscle retention. Ipamorelin's ghrelin-driven hunger can override the appetite suppression. · Tesamorelin: Tesa/ipa blends are the pricier alternative for belly fat; several users who reacted to CJC moved to tesamorelin, though some then reacted to it as well.

User reports 53

  • @Mqsley· · 106 likesOriginal ↗

    Holy sh*t it worked. 100mcg of ipamorelin last night gave me my best sleep ever

    GlowingSleep · 100 mcg at night · Injection

    ipamorelin alone

  • @Lucas_Gallooo· · 10 likesOriginal ↗

    Holy crap when I took CJC-1295 no DAC and Ipamorelin for 10 weeks it changed my life! I felt like a superhero and my sleep was CURED. I slept like a tank I could get like 10 hours worth of sleep in only 6 and my rem and deep sleep like doubled.

    GlowingSleep · 10 weeks

    with CJC-1295 no DAC

  • r/BodyHackGuide· · 5 upvotesOriginal ↗

    Sleep has been magical. Overall weight has been steadily dropping as it was before. What I have noticed is that I am getting more defined. Muscle mass is looking leaner and mid section has been looking tighter.

    GlowingSleep · 200 mcg CJC + 200 mcg ipamorelin, 5 on / 2 off · Injection · 4 weeks

    on tirzepatide in a calorie deficit; CJC/ipa combo

  • @Whynotyou· · 2 likesOriginal ↗

    in only like 2-3 days, my sleep has been restored, and for once in my life, I am actually getting the sleep I need to function at the highest level. It truly worked very well for me, CJC/IPA in particular ... A bit of a histamine reaction, but nothing that srs imo.

    GlowingSleep · "200mg" (sic) CJC/ipamorelin blend nightly · Injection

    CJC-1295 + ipamorelin, with epitalon in the mornings; age 24

  • @JEOxendine· Original ↗

    CJC + Ipamorelin. Best and deepest sleep I’ve gotten in years

    GlowingSleep

    with CJC-1295

  • r/Retatrutide· · 335 upvotesOriginal ↗

    3 weeks ago I added cjc+ipa for body recomp and I love the results. Seeing baby abs + my arms are getting super toned. I have had absolutely no side effects with either besides a bit of manageable fatigue

    PositiveMetabolic · 3 weeks

    woman on retatrutide 2 mg/week; CJC/ipa combo

  • r/Biohacking· · 124 upvotesOriginal ↗

    CJC/Ipa’s contribution seems to be mostly sleep — noticeably deeper and longer, which I think is helping the recomp side more than I expected.

    PositiveSleep · 300 mcg CJC/ipa, Mon-Fri, before bed · Injection · 6 weeks

    self-described physician on retatrutide, tracking labs; fasting glucose and HbA1c stayed normal

  • @boowiebear· · 41 likesOriginal ↗

    I started Ipamorelin/CJC-1295 4 weeks ago. Seeing benefits already. I have lost 33 pounds/15% body fat on GLP, now growing muscle and getting waist down below 34 from 40.

    PositiveMetabolic · 4 weeks

    with CJC-1295, after GLP-1 weight loss

  • @CalebDeannn· · 11 likesOriginal ↗

    I’ve only begun feeling different as of yesterday & today. - Dreaming like crazy - Feel less sluggish in the more - Feel more energetic upon waking (i’m usually a zombie when i wake up) even if I didn’t get my optimal sleep

    PositiveEnergy · 2-3 weeks

    with CJC-1295 no DAC

  • r/Peptidesource· · 8 upvotesOriginal ↗

    I’ve run Ipamorelin on its own before and it’s totally fine by itself.

    PositiveRecovery

    ipamorelin alone

  • r/Biohacking· · 6 upvotesOriginal ↗

    Only started it to see if it would help with my sleep while I was on reta because I was walking up every night at 3am from a glucose crash and also just generally struggling to fall asleep on the evening. I will say, within days I was sleeping like a rock.

    PositiveSleep · one cycle

    on retatrutide, waking at 3am; CJC/ipa combo

  • r/BodyHackGuide· · 5 upvotesOriginal ↗

    I felt first I was able to at last sleep through the night for the first time in a very long time. Then I went to feeling overall better at the gym. My skin also looks smoother

    PositiveSleep · 10 units each, nightly, 5 on / 2 off · Injection · 1 month

    45-year-old woman; CJC/ipa combo

  • r/Biohackers· · 3 upvotesOriginal ↗

    I was running a high dose of IPA at 333 mcg three times a day for five days and then the following 10 days would just do 500 mcg at night. huge sperm load and athletic recovery, strength, endurance.

    PositiveRecovery · 333 mcg 3x/day for 5 days, then 500 mcg nightly · Injection

    ipamorelin alone, high dose

  • r/BodyHackGuide· · 3 upvotesOriginal ↗

    I’ve been on 100mcg twice a day fasted 5 on 2 off for about 7 weeks and have for sure seen fat loss and muscle gain.

    PositiveMetabolic · 100 mcg twice a day, 5 on / 2 off · Injection · ~7 weeks

    44-year-old woman on tirzepatide; CJC/ipa combo

  • @teachrobotslove· · 3 likesOriginal ↗

    I've been taking cjc + ipamorelin and the sleep quality increase was immediately noticeable..

    PositiveSleep

    with CJC-1295

  • @shawnmichael98· · 3 likesOriginal ↗

    I've taken cjc1295 and Ipamorelin without DAC for 12 weeks and have experienced zero side effects but a ton of benefits including significant hypertrophy.

    PositiveRecovery · 12 weeks

    with CJC-1295 no DAC

  • @Jacobvice7· · 3 likesOriginal ↗

    Had low test and thyroid due to stress. Hopped on CJC/Ipamorelin. Fixed everything. I’m now on my 3rd cycle of CJC and up around 10 lbs of muscle as well.

    PositiveRecovery · 3 cycles

    with CJC-1295

  • r/Peptidesource· · 2 upvotesOriginal ↗

    I love ipam by itself . Great sleep.

    PositiveSleep

    ipamorelin alone (alongside KLOW and retatrutide)

  • r/BodyHackGuide· · 1 upvotesOriginal ↗

    After a few weeks my appetite has stabilized again which is great and I’ve been able to recover better allowing me to add in an extra strength day to my half marathon training - overall I’m a fan

    PositiveRecovery · several weeks

    27-year-old woman on low-dose retatrutide, half-marathon training; CJC/ipa combo

  • r/Testosterone· Original ↗

    I tried CJC + Ipa prior to HGH and moved up from 78 to 160. Then I took 2iu HGH for about 6 months and my IGF shot up from 160 to 419!

    PositiveMetabolic · 300-500 mcg/day combined

    on TRT; CJC/ipa combo, later switched to HGH

  • @RazJunepc· Original ↗

    I was using peptides - ipamorelin and CJC1295– and was sleeping better but stopped for a little bit and I couldn’t sleep very well. I just reordered some

    PositiveSleep

    with CJC-1295

  • r/BodyHackGuide· · 14 upvotesOriginal ↗

    I actually don't feel better recovered/sleep better- I really feel more tired. BUT in 4 weeks I dropped about 3lbs of fat and gained 1.3 of muscle (42 y/o F)

    MixedMetabolic · 4 weeks

    42-year-old woman also on GLOW, retatrutide and HRT; CJC/ipa combo

  • r/BodyHackGuide· · 6 upvotesOriginal ↗

    No I think it was a waste looking back. If I were to run it again, which I probably won’t, I’d run 100-200 mcg, in combo with cjc 1295 no dac

    MixedRecovery · up to 3-4 mg/day by accident · Injection · 12+ months

    ipamorelin alone

  • r/PeptidePathways· · 6 upvotesOriginal ↗

    Flu-like symptoms (chills, myalgias, “feverish” sensation without actual fever)

    MixedSleep · 200 mcg each, nightly · Injection · 8 days, paused

    33-year-old woman ("rat" phrasing); CJC/ipa blend; concurrent chest infection possible

  • @jakew· · 6 likesOriginal ↗

    strength is increasing. lat pulldowns, strict press, bench press, back squat are all up a bit from last week. - sleep is kinda messed up. My deep sleep has been ~90 minutes. Normally I hit 3 hours inside an 8 hour sleep cycle.

    MixedRecovery · 1 week

    CJC-1295 + ipamorelin with retatrutide

  • @volfan5454· · 3 likesOriginal ↗

    ipamorelin/cjc just made me hungry and sleep good

    MixedSleep

    with CJC-1295

  • r/BodyHackGuide· · 2 upvotesOriginal ↗

    1st week gave me insomnia/night sweats, around 2-3 week mark i could fall asleep and had longer deep sleep which made recovery better.

    MixedSleep · 4 weeks

    CJC/ipa combo

  • r/Biohacking· · 5 upvotesOriginal ↗

    Haven’t seen any benefits no sleep change recovery change nothing.

    NothingSleep · 200-300 mcg, 5 on / 2 off · Injection · 1 week

    CJC/ipa blend; early report

  • r/Peptidesource· · 2 upvotesOriginal ↗

    I took IPA by itself and wasn't very impressed with the results.

    NothingMetabolic · 6 weeks

    ipamorelin alone; later got better results from GHRP-6 + CJC

  • @VinnyJay87· · 2 likesOriginal ↗

    I’ve been underwhelmed by: MOTSc, Ipamorelin, Epitalon, CJC1295, DSIP, BPC157. I’ve been impressed by reta and tirz. Most peptides are useless.

    Nothing

  • r/Testosterone· · 1 upvotesOriginal ↗

    The very first night I took it I had the best night sleep ever. Every single day since then I’ve literally felt or seen no difference. I’m entering week 5

    NothingSleep · 4+ weeks

    CJC/ipa combo

  • @GamesMasterFlex· · 1 likesOriginal ↗

    CJC/Ipa Two months and didn’t notice it at all. HGH I noticed end of first week.

    Nothing2 months

    CJC-1295 + ipamorelin, compared with HGH

  • @Cernovich· · 49 likesOriginal ↗

    Ipamorelin makes me feel like I'm starving to death. Sermorelin sends me into great sleep and I wake up feeling like I actually slept.

    NegativeSleep

    preferred sermorelin

  • @Max_hubz· · 9 likesOriginal ↗

    Had to pull Ipamorelin out of my stack, it was clogging up the bowels more than GLP3 was already. +the water retention I was getting was not comfortable.

    Negative

    alongside retatrutide; stopped

  • r/BodyHackGuide· · 7 upvotesOriginal ↗

    5mg reconstituted and did 1x daily ~100-150mcg, now having bloating and crazy water retention with bags under eyes?

    NegativeMetabolic · 100-150 mcg/day · Injection

    ipamorelin alone

  • @elimohamad· · 6 likesOriginal ↗

    One week of low dose Ipamorelin completely destroyed my sleep.

    NegativeSleep · 1 week, low dose

  • r/Testosterone· · 3 upvotesOriginal ↗

    I'm on .70mg a week of Cyp and taking 25mcg of Ipamorelin and I can't sleep, I have too much energy.

    NegativeSleep · Injection · ~2 months

    prescribed ipamorelin alone with TRT; had also just stopped cannabis edibles; later fixed by moving the shot to mornings

  • r/BodyHackGuide· · 3 upvotesOriginal ↗

    Bro same thing happened to me with ipa, no matter what time i injected my sleep would just crash after 3-4 hours.

    NegativeSleep

    traced to ipamorelin by stopping it

  • @freeliberty69· · 3 likesOriginal ↗

    CJC-1295 + IPA didn't help me on first cycle. I believe it was negatively impacting sleep which was primary reason for trying it.

    NegativeSleep

    with CJC-1295, first cycle

  • r/BodyHackGuide· · 1 upvotesOriginal ↗

    soon as I started it , the Reta completely stopped working and I’m extremely hungry now even on 4mg of Reta and I can’t get more than 4 hours of sleep

    NegativeMetabolic

    added ipamorelin to tesamorelin and retatrutide

  • r/BodyHackGuide· · 1 upvotesOriginal ↗

    since I got another ipamorelin vial I’ve had two nights where I’ve woken up with a high heart rate of 90-100 for like an hour and a quarter accompanied with nausea and/or vomiting

    Negative

    started with a new ipamorelin vial; CJC/ipa stopped

  • @LindaZajas· Original ↗

    CJC-1295 w/Ipamorelin caused headaches and a faster heart rate so I have stopped for now. My dose was small.

    Negative

    with CJC-1295, small dose; stopped

  • r/Biohacking· · 9 upvotesOriginal ↗

    I developed an allergic reaction to tesa, ipa, all of the morelins. It took 6 months to build up. Eventually I got really bad rashes and hives.

    Bad reaction~6 months

    switched to HGH without issues

  • @Bojo_Ricardo· · 3 likesOriginal ↗

    Tesamorelin made me have a anaphylatic episode Saturday night...1.75 mg and 500 mcg of ipamorelin...same vial I have used 5 times this week....4 weeks into the cycle...Wonder why??

    Bad reaction500 mcg with 1.75 mg tesamorelin · Injection · 4 weeks

    tesamorelin + ipamorelin; same vial used 5 times that week

  • r/BodyHackGuide· · 2 upvotesOriginal ↗

    Within minutes, my entire body was intensely itchy even felt like I was itching internally. My lips began swelling, my vision became blurry, and I developed some tightness in my throat

    Bad reactionRecovery · ~4 months over two cycles

    mid-20s athlete; CJC/ipa combo, also using a KGLOW blend; reaction subsided in 30-45 minutes without epinephrine

  • @KylieRoseMM· · 2 likesOriginal ↗

    When I injected the cjc/Ipamorelin, I had an instant redness & itching at the injection site and fatigue. I stopped taking the extra 3 and added KPV

    Bad reaction

    CJC-1295/ipamorelin added to BPC-157 and TB-500 by a doctor; stopped

  • r/Biohacking· · 1 upvotesOriginal ↗

    Well, I took it a second time, and went into full-blown anaphylaxis. Full body itching, swollen tongue and lips, high heart rate and low blood pressure. I passed out, my wife called 911, and I woke up in the ICU on an epinephrine infusion for 24 hours.

    Bad reaction2 doses

    CJC/ipa combo; no prior food or drug allergies

  • r/Testosterone· · 1 upvotesOriginal ↗

    Stay away from cjc and ipa, I had anaphylaxis shock and many others from that compound alone.

    Bad reaction

    CJC/ipa combo; no further detail given

  • @thegoodgoyguy· · 1 likesOriginal ↗

    Took cjc and ipamorelin and had an insane reaction. Tingles all over my body, lips, face and throat swollen, and broke out in mild hives. After that is said fuck that.

    Bad reaction

    with CJC-1295

  • @theawakecoach· · 1 likesOriginal ↗

    CJC + Ipamorelin combo almost killed me early last year. Thank God I had emergency asthma pills/inhalers, steroids, etc. Scary stuff.

    Bad reaction

    with CJC-1295

  • @DrRobLane· Original ↗

    Loved them. Put 20lbs on cjc ipamorelin in 6 months and it was great. Then came the intense histamine reactions on the 2nd go around with chest tightness, sob, flushing all of it. Not even remotely worth it

    Bad reactionRecovery · 6 months, then a second course

    with CJC-1295

  • r/BodyHackGuide· · 50 upvotesOriginal ↗

    Within the first two weeks of this GH secretagogue protocol, my deep sleep cycles (monitored via wearable) increased by nearly 40%. I’m no longer waking up at 3 AM with cortisol spikes.

    GlowingSleep · Injection · 3 months · vendor-adjacent

    CJC/ipa combo alongside GLP-1s; post reads as marketing and name-drops a lab-testing brand

  • @DefianxtPEPs· · 30 likesOriginal ↗

    Just finished my first 5 week CJC/IPA cycle, and I honestly did not expect the results to be as good as they were. Stacking CJC/IPA with Reta and MOTS-C had the fat flying off while helping me retain muscle surprisingly well.

    PositiveMetabolic · 5 weeks · vendor-adjacent

    CJC-1295 + ipamorelin stacked with retatrutide and MOTS-c; promotes another peptide account

Safety

Tier by safety barStrict ExcludedBalanced ExcludedEvidence only Excluded

Seen harmMechanismData gapSilent harmProduct

Seen harm 3/3
Coroner-attributed death: anaphylaxis to injected CJC-1295 with ipamorelin killed Richard Norton in 2025 (double dose, asthma and cardiomyopathy contributing), and the TGA reported three more anaphylaxis cases with the pair. In its only trial two IV-treated cancer-surgery patients died of complications FDA could not link or rule out, with more hypokalaemia and hyperglycaemia than on placebo; first-hand reports add anaphylaxis needing ICU care. ABC News, 29 Oct 2026: coroner finds Richard Norton's death triggered by CJC-1295 and ipamorelin ↗Medical Republic: peptide-related death (anaphylaxis) and TGA's six further hypersensitivity cases ↗FDA PCAC briefing on ipamorelin, 29 Oct 2024 (deaths, hypokalaemia and hyperglycaemia imbalance) ↗r/Biohacking: anaphylaxis on the second CJC/ipamorelin dose, 24 hours in ICU on epinephrine ↗
Mechanism 2/3
A ghrelin-receptor agonist that raises GH and IGF-1; FDA highlighted the trial's excess hypokalaemia (12.5% vs 3.4%) and hyperglycaemia. FDA PCAC briefing on ipamorelin, 29 Oct 2024 (deaths, hypokalaemia and hyperglycaemia imbalance) ↗
Data gap 2/3
One phase 2 trial of IV dosing in 114 surgical patients; no human data for the subcutaneous use people practise. Beck et al. 2014: IV ipamorelin for postoperative ileus, phase 2, n=114 (PubMed 25331030) ↗FDA PCAC briefing on ipamorelin, 29 Oct 2024 (deaths, hypokalaemia and hyperglycaemia imbalance) ↗
Silent harm 3/3
Its credible long-term harms (tumour promotion and insulin resistance from raised IGF-1) would be silent; anaphylaxis is sudden and can follow weeks of uneventful use. The Age, Oct 2026: Victorian cluster of 13 anaphylaxis cases from unapproved peptides ↗
Product 3/3
Grey-market vials or compounded injections; ipamorelin was among the compounds in the 6,441-sample quality study. Mendias & Awan 2026 preprint: 6,441 grey-market peptide samples, 42-71% failed quality criteria, 15% had endotoxin ↗
Never if
Active cancer or a history of cancer · A history of anaphylaxis · Diabetes or impaired glucose tolerance · Pregnancy or breastfeeding (no human reproductive data)

Where to buy 8 in Europe · 15 total

ShopFormPricePer mgTesting
Semax PolskaEU · PLspray · 40 mg+5 mg GHK-CuExcluded€45€1.13/mgThird-party tested
XL PeptidesUK · GBpowder · 5 mg€1915.99 GBP€3.83/mgThird-party tested
Baltic PeptidesEU · LTpowder · 10 mg€50€5.00/mgThird-party tested
Prime PeptidesUSpowder · 10 mg€5460 USD€5.39/mgThird-party tested
Nootropic SourceUSpowder · 10 mg€5864.95 USD€5.84/mgOwn COAout of stock
Europa-PeptideEU · PLpowder · 10 mg€59€5.90/mgOwn COA
Nootropic SourceUSpowder · 5 mg€3134.95 USD€6.28/mgOwn COA
Particle PeptidesEU · SKpowder · 5 mg€32€6.44/mgOwn COA
Europa-PeptideEU · PLpowder · 5 mg€33€6.58/mgOwn COA
Nootropic SourceUSpowder · 2 mg€1617.5 USD€7.86/mgOwn COA
SwissChemsUSpowder · 2 mg€1617.56 USD€7.89/mgThird-party tested
Modern Peptides EUEU · DEpowder · 10 mg€85€8.50/mgOwn COA
Limitless Biotech (Limitless Life Nootropics)USpowder · 10 mg€8897.99 USD€8.80/mgNo public tests
Limitless Biotech (Limitless Life Nootropics)USpowder · 5 mg€4549.99 USD€8.98/mgNo public tests
Modern Peptides EUEU · DEpowder · 5 mg€55€11/mgOwn COA

Studies 5

Sources 2

More in Hormones & libido all 12 →

  1. 1GHRP-6 Excluded Injection≈ €13–81 / month59%positive14 reportsFirst-generation GHRP used as an appetite drug for bulking; strong hunger, cortisol, glucose, GH axis.GH/IGF-1 axis elevation plus cortisol rise and reduced insulin sensitivity (FDA), with only single-dose human safety data.
  2. 2Kisspeptin YNWNSFGLRF (10 residues) Excluded Nasal / Injection≈ €4.1–12 / month52%positive30 reportsTop-of-axis GnRH stimulator for libido/testosterone; chronic use can crash the axis.Directly manipulates the HPG axis; continuous or long-acting exposure suppresses it.
  3. 3Hexarelin Excluded Injection≈ €27–110 / month45%positive5 reportsMost potent GHRP; fast desensitisation, acute cortisol/prolactin rise and direct CD36 heart effects.GH/IGF-1 axis elevation, acute cortisol and prolactin release, and GH-independent actions on heart and coronary vessels via CD36.
  4. 4IGF-1 DES Excluded Injection≈ €22–180 / month49%positive4 reportsShort-acting, truncated IGF-1 injected into the trained muscle; very potent at dropping blood sugar.An IGF-1 receptor agonist about ten times as potent as IGF-1 in cells and the most hypoglycaemic of the IGF-1 variants in primates, with no human data, the same tumour-promotion concern as LR3, and grey-market vials that are rarely tested.
  5. 5MK-677 Excluded Oral≈ €18–54 / month48%positive29 reportsOral GH secretagogue (not a peptide); hunger, bloat, insulin resistance, CHF signal.GH/IGF-1 elevation, insulin resistance and a CHF safety signal in an RCT.
  6. 6Follistatin-344 Excluded Injection≈ €180–450 / month44%positive10 reportsMyostatin/activin-binding protein sold as 1 mg vials; about half of tested vials held no follistatin.Blocks myostatin and activin signalling (FSH axis, angiogenesis, glucose) with no human safety data for the injected protein; vials often hold other drugs.
  7. 7IGF-1 LR3 Excluded Injection≈ €36–140 / month40%positive24 reportsLong-acting IGF-1 analogue (a cell-culture reagent) for muscle; hypoglycaemia, tumour-growth signal.A potent, long-acting IGF-1 receptor agonist with no human data at all: it accelerated tumour growth in mice, the same receptor causes hypoglycaemic seizures and carries a malignancy warning on the approved IGF-1 drug, and every vial is grey-market.
  8. 8Sermorelin YADAIFTNSYRKVLGQLSARKLLQDIMSR (29 residues) Excluded Sublingual / Injection≈ €38–94 / month46%positive29 reportsShort GHRH analogue; cheap, gentle, sleep-focused, still GH/IGF-1 axis.GH/IGF-1 axis elevation, though the mildest of the class.
  9. 9PT-141 DHFRWK (6 residues) Excluded Nasal / Injection≈ €24–170 / month39%positive30 reportsFDA-approved melanocortin libido drug; works strongly for many, raises blood pressure.Cardiovascular effects (BP spikes; contraindicated in CVD) and melanocortin pigmentation effects.
  10. 10GHRP-2 Excluded Injection / Nasal / IV≈ €18–45 / month39%positive7 reportsJapan-approved GH diagnostic sold as a vial; hunger, cortisol and prolactin spikes, GH axis.GH/IGF-1 axis elevation with cortisol and prolactin spikes; FDA notes raised insulin needs and deaths in critically ill subjects.
  11. 11CJC-1295 YADAIFTQSYRKVLAQLSARKLLQDILSR (29 residues) Excluded Injection≈ €14–27 / month38%positive29 reportsLong-acting GHRH analogue stacked with ipamorelin; GH axis, vasodilatory reactions.GH/IGF-1 axis elevation plus FDA-noted tachycardia/vasodilatory reactions and anaphylaxis.

Sequence beads

Each bead is one amino acid in the peptide's chain, coloured by its side chain: grey for non-polar, cyan for polar, blue for positively charged and fuchsia for negatively charged. Length and mix tell related peptides apart at a glance, from a two-residue dipeptide like carnosine to a 43-residue protein like thymosin beta-4. The colours describe chemistry only and predict neither effect nor safety.

non-polarpolarpositivenegative

Report grades

Every first-hand Reddit or X report is graded on its own, from glowing through positive, mixed, nothing and negative to bad reaction, and the bar shows how those grades split. Posts that look vendor-adjacent stay on the peptide's page but are left out of the counts.

GlowingPositiveMixedNothingNegativeBad reaction

% positive

The share of a peptide's graded Reddit and X reports that are glowing or positive, vendor-adjacent posts left out. A peptide with few reports is pulled toward the average of all reports, as if it had eight average ones besides its own, so two glowing posts cannot top the list. Kept peptides rank by the same reports' mean grade, shrunk the same way, and excluded ones follow in that order.

Researcher estimate

No first-hand report of this peptide has been graded yet, so the figure is the researchers' own rating out of 10 from what they read about it. It ranks alongside the computed scores until reports arrive.

Safety tier

Each peptide is tiered clean, caution or excluded from its five risk axes under the chosen safety bar. An excluded peptide has a plausible route to serious harm, so it stays listed with the reason but ranks behind every other entry, however good its reviews.

Safety bar

The safety bar sets how much risk it takes to exclude a peptide. Strict: out on any serious mechanism with little human data, or any documented serious harm. Balanced: out on documented serious harm (unless it is obvious, reversible and from a regulated product), or a serious mechanism whose harm would be silent with no human data at all. Evidence only: out only on documented serious harm in humans that is lasting, delayed or from grey-market product.

Seen harm

Documented serious adverse events in humans, from 0 for none despite real exposure to 3 for deaths or several well-documented serious harms. Serious means a hospital or emergency visit or harm lasting weeks, so a headache or a bad night does not count.

Mechanism

A plausible biological route to serious harm at the doses people use, such as growth-factor signalling, hormone-axis suppression, heart or blood-pressure effects or immune activation. It runs from 0 when none is known to 3 when a dangerous pathway has been shown in living animals.

Data gap

How little human safety data exists for the molecule actually sold, from 0 for an approved drug with large trials and years of use to 3 for no human safety data at all. A modified analogue does not inherit its parent's trials.

Silent harm

Whether the feared harm would show quickly or stay hidden, from 0 when it is obvious and goes on stopping to 3 when it is silent and delayed, like tumour promotion or slow organ damage. User reports cannot reveal a harm that takes years to appear, so a high score here limits what good reviews can tell you.

Product

The risk of what people actually buy, from 0 for a regulated pharmacy or supplement product taken by mouth or on the skin to 3 for a grey-market injectable. In one dataset of 6,441 grey-market samples, 42–71% failed basic quality criteria and 15% carried endotoxin.

Evidence

The strongest kind of study behind the peptide's effects, from an approved drug through human controlled trials and small human studies to animal work or nothing of its own. Animal results often fail to carry over to people.

Access

How people get it: as an approved drug, a compounded prescription, an over-the-counter supplement or from the grey market, where nobody checks the vial. The channel decides both the legal position and the risk of a bad batch.

Price per month

Thirty days of the typical dose, from its low end to its high end, priced at the listing a careful buyer would choose: in stock, from a shop scoring 4 of 5 on trust (third-party tested where no score is set), failing that 3, a pure pack before a blend, a European shop first, then the cheapest per mg. The range is the dose's, not the shops'. A per-dose amount counts once a day unless the dose says otherwise. Prices are in euros at ECB rates of 2026-10-29, before shipping; the shop table keeps each listing's price per mg, per gram for bulk supplements. Where no listing can be priced the researchers' own estimate stands in, and says so.

Dose users report

The middle half of the daily doses stated in at least five first-hand reports, vendor posts left out. Where its middle sits more than twice above or below the declared dose, the month is priced at it as well, since what people take is what they pay for.

Testing

Whether the shop publishes lab results: third-party tested means an independent lab checks each batch, own COA means the shop's own certificate of analysis, and no public tests means neither. A certificate shows purity, not safety.

Added peptide

Some packs sold under one peptide's name hold a second one, such as 5 mg GHK-Cu in a nasal kit, stated only in the description. Sprayed in the nose or injected it reaches the blood like an injection, so it carries the risk of that route and is tiered as the injectable form, whatever its tier on the skin. A pack whose page gives no contents list may hold more than its name.