PepRank

BPC-157

46%positive53 reports

Also: Body Protection Compound 157 · pentadecapeptide · part of 'Wolverine', 'GLOW', 'KLOW' blends

ExcludedGutOral / Injection

The most-loved healing peptide; strong anecdotes, animal-only data, angiogenesis concern.

GEPPPGKPADDAGLV · unmodified (sold as free acid, also arginate/acetate salts) (15 residues)

GEPPPGKPADDAGLV unmodified (sold as free acid, also arginate/acetate salts)

#41 of 61 research peptides · updated
Access
Grey market
Cost / month
≈ €20–41
at 250–500 mcg/day · Semax Polska · €2.73/mg
InjectionFelt in 2 days – 2 weeks
OralFelt in 24 h – 7 days

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

53 user reports
Glowing 15Positive 9Mixed 7Nothing 8Negative 4Bad reaction 10
  • @IterIntellectus· · 3115 likesOriginal ↗

    two months ago i injected BPC-157 into my knee. two hours later i walked without pain for the first time since 2019 i've been doing 1-2 mg/day since, local and systemic

    Glowing1-2 mg/day · Injection · 2 months

    knee injury from 2019 squat, failed cortisone and physio

  • @mLaabs1984· · 152 likesOriginal ↗

    Been on it for 8 weeks. Game changer for my shoulder injury. Went from extreme pain when doing a push up to almost normal by week 3.

    Glowing8 weeks

    shoulder injury

  • r/bpc_157· · 186 upvotesOriginal ↗

    I LOVE BPC-157! It has made my joints feel like they did 20 years ago. I was also recently diagnosed with Choroidal Neovascularization (CNV)

    Bad reaction500 mcg/day · Injection · ~3 months

    age 43, family history of type 2 diabetes but normal glucose; improving after stopping

Strict case
Pro-angiogenic mechanism with a plausible path to tumour growth and retinal neovascularisation, plus essentially no human safety data. HHS enforcement discretion (29 Oct 2026) is not a safety finding.
Users report
Strong, often dramatic benefits: tendon/rotator-cuff and back pain relief, surgeons 'shocked' at recovery speed, gut/reflux fixes. Acute injuries respond better than chronic ones. Roughly 20-25% report nothing. A notable minority report anxiety, insomnia, anhedonia, headaches and flu-like reactions (often blamed on endotoxin-contaminated vials). There is also a growing cluster of eye complaints (blurry vision, eye pain), including one choroidal neovascularisation case that needed anti-VEGF shots.
Best effects
Faster tendon/ligament/muscle recovery · post-surgical healing · joint and back pain relief · gut lining / reflux / IBD relief
Downsides
Anxiety, insomnia, 'speedy' feeling · anhedonia / low mood in some · headaches, nausea, dizziness · injection-site irritation
Watch
Pro-angiogenic (VEGFR2/eNOS) in animal models: theoretical promotion of existing tumours · Recurring eye/retina reports incl. a choroidal neovascularisation case (anecdotal, plausible via VEGF) · No human safety data beyond tiny pilots (n=2 IV study); FDA CDER recommended against listing · Generic: grey-market endotoxin contamination is common
Evidence
Small human studies — Plus tiny human pilots and case series
Typical use
250-500 mcg/day subQ for 4-8 weeks (often 2x/day near the injury); 500 mcg oral for gut. Users report 500–880 mcg/day (median 500 mcg, n=10).
Getting it
Research-peptide vials and capsules; since HHS enforcement discretion (29 Oct 2026) US 503A pharmacies and telehealth clinics compound it. Banned in sport by WADA.
Stacked with
TB-500: The 'Wolverine' stack, sold as a pre-mixed blend; most injury reports on Reddit are for this pair rather than BPC alone. · GHK-Cu and KPV: 'GLOW' (BPC, TB-500, GHK-Cu) and 'KLOW' (plus KPV) blends; users also add BPC to injectable GHK-Cu to cut the sting. · KPV: Paired for gut and autoimmune inflammation, and used as the non-angiogenic substitute by people who quit BPC.

User reports 55

  • @IterIntellectus· · 3115 likesOriginal ↗

    two months ago i injected BPC-157 into my knee. two hours later i walked without pain for the first time since 2019 i've been doing 1-2 mg/day since, local and systemic

    Glowing1-2 mg/day · Injection · 2 months

    knee injury from 2019 squat, failed cortisone and physio

  • @mLaabs1984· · 152 likesOriginal ↗

    Been on it for 8 weeks. Game changer for my shoulder injury. Went from extreme pain when doing a push up to almost normal by week 3.

    Glowing8 weeks

    shoulder injury

  • @Dustin_X_· · 102 likesOriginal ↗

    Within a week, I did 2x injections of 2.5mg of BPC-157/TB-500 into the soft part of my knee. My knee has felt great since. No rehab, No pain, No mobility issues.

    Glowing2.5 mg BPC-157/TB-500 blend x2 · Injection

    knee pain; BPC-157/TB-500 blend injected locally

  • r/bpc_157· · 62 upvotesOriginal ↗

    I began doing subcutaneous injections of 500 mcg a day. It completely healed my ankle in 15 days, and my stomach was fully healed too. The only side effect was that if I injected it at night, it was hard for me to sleep.

    GlowingGut · 500 mcg/day · Injection · 15 days

    Crohn's disease, chronic gastritis, ankle sprain

  • r/bpc_157· · 44 upvotesOriginal ↗

    Since starting over three weeks ago (500–750 mcg daily), I’ve had zero stomach or GI issues. Not one. I genuinely can’t remember the last time I went even a full week without rushing to find a bathroom

    GlowingGut · 500-750 mcg/day · Oral · 3+ weeks

    lifelong IBS after gallbladder removal, over 50

  • @AustinJochum· · 39 likesOriginal ↗

    took a cycle of BPC-157 orally and within a month it disappeared and I have never had an issue with knee since. Magic - Placebo - Science - Idk but it worked for me.

    GlowingOral · 1 cycle (~1 month)

    untreated meniscus and ACL tear, 3 years

  • @heIpfullandlord· · 39 likesOriginal ↗

    In early '21, I tore a disk in my back. It took about 8 months to "recover." I use quotes because I was still in varying degrees of pain every day. 6 weeks ago, I started taking BPC-157. I've been 100% pain-free for 3 weeks.

    Glowing6 weeks

    torn spinal disc, 2021

  • @Peanut_4_gold7· · 19 likesOriginal ↗

    I took it in combination with TB500 and I literally regrew an achilles tendon that was fully ruptured and had to be surgically reattached. Good as new and playing sports 5 months later

    Glowing

    surgically repaired Achilles rupture; with TB-500

  • @JohnnyDTOM· · 10 likesOriginal ↗

    I used BPC for a partially torn labrum, follow up mri showed it fully healed along with return of full range of motion, all in 6 weeks. Before that it was 6 months of no progress.

    Glowing6 weeks

    partial labrum tear, 6 months without progress

  • @RichBruner· · 9 likesOriginal ↗

    After 1 week of gray market IM injections of BPC-157 into my hamstring, it felt 10 times better. After 3 weeks, I was running 6:10 mph KM repeats again.

    GlowingInjection · 3 weeks

    runner, hamstring pull; grey-market vials

  • @skimaskduets· · 8 likesOriginal ↗

    Oral BPC saved my gut. I had H pylori last year and a suspected ulcer. Oral BPC was the only thing that brought my gut back after the ruthless quadruple therapy for H pylori.

    GlowingGut · Oral · 2 weeks

    post H. pylori quadruple therapy, suspected ulcer

  • r/Biohackers· · 4 upvotesOriginal ↗

    I had a knee that hurt, cracked, popped, and slipped every single day for 15 years. One month of BPC fixed it, it’s been a year and it’s still perfect.

    Glowing1 month

    chronic knee pain, popping and slipping

  • r/bpc_157· · 2 upvotesOriginal ↗

    I took BPC post abdominaplasty and lipo. Cleared with my plastic surgeon before and required zero pain killers (not even Tylenol) and was up and walking by the next morning. I healed amazingly fast

    Glowing2 weeks

    after abdominoplasty and liposuction, cleared with surgeon

  • r/Biohackers· · 2 upvotesOriginal ↗

    First time for a broken foot (4th metatarsal) and was back in the gym lifting normally after 3 weeks. Second time was after ACL surgery. Was able to run in a straight line at 4 weeks.

    Glowing

    two courses 10+ years ago, no adverse effects noticed since

  • r/30PlusSkinCare· · 2 upvotesOriginal ↗

    I’ve suffered with IBS for most of my adult life. I’m talking life altering stomach issues that have seriously impacted every aspect of my life. Doctors have been absolutely zero help. Bpc157 for about a month now has made it so I can live a normal life.

    GlowingGut · ~1 month

    IBS, conventional care had not helped

  • @jordaaash· · 819 likesOriginal ↗

    After a week of BPC-157 (8 injections, 500mcg subcutaneous abdominal), persistent ankle tendon pain from a snowboarding injury a year ago is barely noticeable, and ankle mobility is significantly improved.

    Positive500 mcg/injection · Injection · 1 week

    snowboarding ankle injury

  • @GeordianKnot· · 20 likesOriginal ↗

    Well, it cured my chronic (years-long) double tennis elbow in 6 months, so it worked for me.

    Positive6 months

    years-long tennis elbow in both arms

  • r/bpc_157· · 17 upvotesOriginal ↗

    Doing 2x per day 250mcg I didn't felt improvements for 2 weeks. Until I started 500mcg 2x per day and then yes, I felt improvements.

    Positive500 mcg 2x/day · Injection · 7 weeks

    bilateral ankle tendinitis, trigger finger after surgery

  • r/bpc_157· · 16 upvotesOriginal ↗

    In the past I have healed a golfers elbow injury from power lifting... twice! I healed my rotator cuff and I have healed my friend's rotator cuff tear as well

    Positive100 mcg/day to 1.66 mg 3x/day · Injection · ~8 years

  • r/ACL· · 14 upvotesOriginal ↗

    I didn’t expect magic overnight, but my swelling dropped within days, and my range of motion has been steadily improving. I hit 0–120° by my first PT session on day 10. Even my PT was surprised at how stable and mobile my knee was

    Positive16 days

    ACL reconstruction with quad graft and meniscus trim

  • r/bpc_157· · 7 upvotesOriginal ↗

    been taking BPC-157 in 10wk cycles 3 - 4 times a year for 3 years. I've taken both oral & sub-q on this healing journey. Started self medicating for a hiatal hernia that is mostly healed now due to weight loss, diet changes & BPC! The only reason I take a break is due to tolerance.

    PositiveGut · 250-750 mcg/day · Injection · 3 years of 10-week cycles

    hiatal hernia; oral and subq

  • @butterandgin· · 6 likesOriginal ↗

    Tore my ACL and meniscus at the same time. I have been taking BPC-157 peptides for 7 weeks now and have zero pain and can walk without crutches or limping.

    Positive7 weeks

    ACL and meniscus tear

  • r/Biohacking· · 3 upvotesOriginal ↗

    I started in abdomen but did not do anything - switched to shoulder and in a month changed to instant progress.

    Positive1 mg/day · Injection

    shoulder and patellar tendinitis; with TB-500

  • r/Biohackers· · 1 upvotesOriginal ↗

    I tore my tricep and could not even squat a year later because of the elbow pain. I tried bpc and within a month I was pain fred for the first time in two years. That being said my hip injury has never fully healed despite the use of bpc and tb500.

    Positive~1 month

  • r/bpc_157· · 61 upvotesOriginal ↗

    he said it took him almost 20 minutes to control bleeding at my initial injury site and said if he hadn’t known better, he would’ve thought the injury happened last week and not almost 2 years before.

    MixedSublingual · on and off over a year

    failed AC-joint surgery, ulcerative colitis; also took it nasally

  • @theholisticgut· · 42 likesOriginal ↗

    I had used BPC-157 around 2 and a half years ago and noticed no difference in my gut health whatsoever, but used it again 6 months ago and it made a huge difference on my health.

    MixedGut

  • r/bpc_157· · 39 upvotesOriginal ↗

    For me, the main side effects are strong memory problems, brain fog, difficulty speaking clearly, and reduced verbal fluency. It feels like I cannot access words as easily, my speech becomes less fluid, and my memory gets noticeably worse.

    Mixed500 mcg/day

    chronic hip/pelvis/low-back issue after surgery and injections; sensitive to dopaminergic supplements

  • r/Biohackers· · 36 upvotesOriginal ↗

    The first 2 weeks I felt an amazing improvement not only with the pain, but cognitively felt way sharper and just had a general sense of well-being. About 3 weeks in, I started getting this fatigued feeling shortly after waking up in the morning and it only subsides after eating carbs.

    MixedOral · 5 weeks

    neck/shoulder pain, lifter

  • @SplendidSpeseia· · 9 likesOriginal ↗

    BPC-157 day 14 update: I haven't had diarrhea in a week now! They still aren't all super "healthy", but much more solid and generally a lot better than before I started the BPC. Side effects like nausea and mcas reaction stuff 80-90% resolved now as well.

    MixedGut · Oral · 2 weeks

    chronic GI symptoms, MCAS

  • @franchupardo· · 9 likesOriginal ↗

    I used BPC-157 and TB-500 for my knees for two months. I noticed a slight improvement, but it really messed with my sleep. I started waking up several times during the night, and my HRV dropped quite a bit.

    Mixed2 months

    knees; with TB-500

  • r/bpc_157· · 2 upvotesOriginal ↗

    i’ve had super vivid dreams every single night but not nightmares. i was having headaches and fatigue but i just lowered my dose and i haven’t had any problems since then.

    Mixed

  • @345marcel· · 50 likesOriginal ↗

    In case of an overuse injury, I got no benefit from BPC+TB over a month of daily injections.

    NothingInjection · 1 month

    overuse injury; with TB-500 at half the advocated dose

  • @AaronBergman18· · 22 likesOriginal ↗

    FWIW I’ve tried two courses of common peptides now (BPC-157 and TB-500), both 3 months at typical dosing, and at most I experienced some very small benefit from the latter (p=high)

    Nothingtwo 3-month courses

    with TB-500

  • @jackmelnick_· · 19 likesOriginal ↗

    I found BPC 157 made no difference for me personally, but was on pretty low dose since I’m not usually a fan of exogenous substances

    Nothing

    disc herniation; low dose; rehab credited instead

  • r/bpc_157· · 3 upvotesOriginal ↗

    BPC-157 did not work for me unfortunately. Maybe it did a little. I'm not 100% sure.

    NothingInjection

    severe shoulder injury

  • r/bpc_157· · 2 upvotesOriginal ↗

    I did 2 cycles 2 different pharmacies. I didn’t feel much. I wasn’t expecting miracles. I felt nothing in regards to pain, nor muscle recovery. I did feel a little bit better sleep.

    Nothing2 cycles

    personal trainer; pharmacy-sourced BPC from two pharmacies

  • r/Gastritis· · 2 upvotesOriginal ↗

    Short answer is that it didn't help me. Only thing I found that helped was pantoprazole so far.

    NothingGut

    gastritis; pantoprazole helped instead

  • @toddkazakov· · 2 likesOriginal ↗

    I’ve been taking BPC-157 for a while after regular treatments failed to heal lower back pain and bicep tendinitis. BPC-157 did absolutely nothing. I bet it won’t do better than placebo in a double blinded trial.

    Nothing

    lower back pain, bicep tendinitis

  • r/bpc_157· · 1 upvotesOriginal ↗

    Been taking oral BPC for the last 4 weeks nearly everyday, and barely seen any differences aside from mild stomach ache if I go to 2 caps (500mcg per cap). Injuries are still there.

    Nothing500 mcg-1 mg/day · Oral · 4 weeks

  • r/bpc_157· · 22 upvotesOriginal ↗

    I did notice positive effects on my injury and general gut health, however the side effects make it completely not worth it for me.

    Negative300 mcg/day · Injection · 2 weeks

    on an SSRI

  • r/bpc_157· · 2 upvotesOriginal ↗

    I did BPC-157 250 twice a day for 7 weeks and didn’t see any improvement in my knees or shoulder pain. I felt it made me more forgetful and I have had blurring in my right eye.

    Negative250 mcg 2x/day · 7 weeks

    knee and shoulder pain

  • r/Biohackers· · 1 upvotesOriginal ↗

    By the 7th I was waking up in the middle of the night and not able to fall back to sleep. I also started experiencing a speedy type feeling that turns into anxiety.

    Negative~1 week

  • r/bpc_157· · 1 upvotesOriginal ↗

    I was on bpc 157 for it too, but it started giving me migraines so I stopped using it.

    NegativeGut

    leaky gut

  • r/bpc_157· · 186 upvotesOriginal ↗

    I LOVE BPC-157! It has made my joints feel like they did 20 years ago. I was also recently diagnosed with Choroidal Neovascularization (CNV)

    Bad reaction500 mcg/day · Injection · ~3 months

    age 43, family history of type 2 diabetes but normal glucose; improving after stopping

  • @mscarnivore· · 56 likesOriginal ↗

    In 2019 I took one single capsule and nearly ended up in the hospital from the awful digestive pain it caused. I was curled up in bed for several days. I also had diarrhea for days.

    Bad reactionGut · Oral · one capsule

  • r/bpc_157· · 54 upvotesOriginal ↗

    I haven't never felt anything like it before, completely flat and empty, no energy, but even more bizarrely no feelings good or bad about life/kids/work/vacation. Caffeine stopped doing anything

    Bad reaction250 mcg 2x/day (with TB-500) · Injection · 9 weeks

    also took CJC-1295/ipamorelin and an ADHD stimulant

  • r/bpc_157· · 15 upvotesOriginal ↗

    for the first week afterwards I was having suicidal thoughts, anxiety, depression etc. I was constipated unable to have bowel movements and then when I did my upper gi began spasming.

    Bad reactionGut · 500 mcg/day · Oral · 3 days

    leaky gut, past SIBO and Hashimoto's; fiancé on the same product became constipated

  • r/Biohackers· · 12 upvotesOriginal ↗

    The next day I had a much stronger physical reaction: shaking, cold sweats, weakness, a pounding heart, chest pressure and the feeling that I might faint. I called an ambulance.

    Bad reaction250 mcg then 100 mcg · Injection

    tennis elbow; ECG and glucose normal; history of near-fainting

  • r/bpc_157· · 2 upvotesOriginal ↗

    I started BPC 157. I do my own lab tests, healthlabs.com, request a test, quest.com, and my liver enzymes shot up over 10X normal. I stopped BPC 157 and I'm waiting a week to retest.

    Bad reaction

  • @ttennebffej· · 2 likesOriginal ↗

    I started taking Oral BPC 157 after a back injury (multiple annular tears/fissures) and developed a skin rash by my armpits (both armpits. Looks like eczema.

    Bad reactionOral

    back injury (annular tears)

  • @TuathaDeDannan6· · 1 likesOriginal ↗

    After taking it orally, I had severe anxiety. I tried sticking with it for 2 weeks but it was impacting so negatively on my mental health, I stopped.

    Bad reactionOral · 2 weeks

    UK/Ireland online vendor

  • @SMPazitas· Original ↗

    It gave me anhedonia the 2nd time i had it. Mine was from a reputable source. I had to stop.

    Bad reaction

    second course, reputable source

  • @soflocoota· Original ↗

    I had eye floaters happen. And eye pressure obtained with prescription from compounding pharmacy

    Bad reaction

    compounding-pharmacy prescription

  • @nootropicguy· · 812 likesOriginal ↗

    Yes, it worked wonders for my gut But it also cut my desire for alcohol & nicotine in half

    PositiveGut · 1 month · vendor-adjacent

  • r/bpc_157· · 83 upvotesOriginal ↗

    I made an order myself, and honestly, I attribute a lot of my fast recovery to the compound. At this point, I'm able to nearly lift my arm to 90 degrees, and am beginning to recover my active range of motion.

    Positive2 months · vendor-adjacent

    post-surgical rotator cuff repair with physio; names a vendor and a vendor replied offering a collaboration

Safety

Tier by safety barStrict ExcludedBalanced ExcludedEvidence only Caution

Seen harmMechanismData gapSilent harmProduct

Seen harm 1/3
FDA's July 2026 review found no published case reports and no serious events in the small human studies; what exists is isolated and confounded: FAERS reports involving blends, TGA hypersensitivity cases it could not split from TB-500, and a first-hand choroidal neovascularisation that needed anti-VEGF injections. FDA PCAC briefing on BPC-157, July 2026: all human exposure, animal toxicology, no case reports ↗Amino Wire: TGA told the Norton inquest of six more anaphylaxis or hypersensitivity cases with CJC-1295/ipamorelin, BPC-157 or TB-500 ↗r/bpc_157: a word of caution (choroidal neovascularisation treated with anti-VEGF) ↗
Mechanism 2/3
Pro-angiogenic in vivo: it raised vessel density and blood-flow recovery in rat ischaemia by activating and up-regulating VEGFR2. No study has tested tumour promotion, and some report the opposite, so the concern is credible but undemonstrated; rat and dog toxicology also showed clotting-time and liver changes. Hsieh et al. 2017: pro-angiogenic BPC-157 acts through VEGFR2 activation and up-regulation (PubMed 27847966) ↗FDA PCAC briefing on BPC-157, July 2026: all human exposure, animal toxicology, no case reports ↗
Data gap 3/3
No human has received it orally, subcutaneously or nasally in a published study; the only human data are about 80 people given it rectally, into a joint or bladder, or IV (two people, both already exposed), in short studies from overlapping authors. No carcinogenicity study exists. FDA PCAC briefing on BPC-157, July 2026: all human exposure, animal toxicology, no case reports ↗Lee & Burgess 2025: IV BPC-157 pilot, n=2, both previously exposed (PubMed 40131143) ↗
Silent harm 3/3
The feared harms, promotion of an existing tumour or retinal neovascularisation, would be silent until advanced, which testimonials cannot reveal. Hsieh et al. 2017: pro-angiogenic BPC-157 acts through VEGFR2 activation and up-regulation (PubMed 27847966) ↗
Product 3/3
Most users inject grey-market vials (oral capsules are second); compounding became legal in the US only with the October 2026 HHS enforcement discretion. AJMC 2026: BPC-157 use rose 33-fold; 35% grey-market, 36% compounding pharmacy ↗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 · Diabetic retinopathy, macular degeneration or other neovascular eye disease · Pregnancy or breastfeeding (no human reproductive data)

Where to buy 12 in Europe · 29 total

ShopFormPricePer mgTesting
Semax PolskaEU · PLspray · 20 mg+5 mg GHK-CuExcluded€39€1.93/mgThird-party tested
Your ProtocolUScapsules · 60 mg€134149 USD€2.23/mgNo public tests
SwissChemsUScapsules · 30 mg€7785.95 USD€2.57/mgThird-party tested
Semax PolskaEU · PLpowder · 10 mg€27€2.73/mgThird-party tested
Baltic PeptidesEU · LTpowder · 20 mg€60€3.00/mgThird-party tested
XL PeptidesUK · GBpowder · 5 mg€1713.99 GBP€3.35/mgThird-party tested
Europa-PeptideEU · PLpowder · 10 mgcontents not stated€36€3.59/mgOwn COA
Baltic PeptidesEU · LTpowder · 10 mg€40€4.00/mgThird-party testedout of stock
Limitless Biotech (Limitless Life Nootropics)USsolution · 10 mg€4145.99 USD€4.13/mgNo public tests
Limitless Biotech (Limitless Life Nootropics)USspray · 10 mg€4448.99 USD€4.40/mgNo public tests
Prime PeptidesUSpowder · 10 mg€4955 USD€4.94/mgThird-party tested
Modern Peptides EUEU · DEpowder · 20 mgcontents not stated€100€5.00/mgOwn COA
Modern Peptides EUEU · DEcapsules · 30 mg€150€5.00/mgOwn COA
SwissChemsUSpowder · 10 mg€5459.95 USD€5.39/mgThird-party tested
Particle PeptidesEU · SKpowder · 10 mg€57€5.66/mgOwn COA
Baltic PeptidesEU · LTpowder · 5 mg€30€6.00/mgThird-party testedout of stock
Limitless Biotech (Limitless Life Nootropics)UScapsules · 15 mg€93103.39 USD€6.19/mgNo public tests
Particle PeptidesEU · SKpowder · 5 mg€31€6.24/mgOwn COA
Nootropic SourceUSpowder · 5 mg€3134.95 USD€6.28/mgOwn COA
Modern Peptides EUEU · DEpowder · 10 mgcontents not stated€69€6.90/mgOwn COA
SwissChemsUSpowder · 5 mg€3639.99 USD€7.19/mgThird-party tested
Limitless Biotech (Limitless Life Nootropics)USpowder · 20 mg€163180.99 USD€8.13/mgNo public tests
Limitless Biotech (Limitless Life Nootropics)USspray · 20 mg€165183.99 USD€8.27/mgNo public tests
Limitless Biotech (Limitless Life Nootropics)USpowder · 10 mg€8493.99 USD€8.44/mgNo public tests
Limitless Biotech (Limitless Life Nootropics)USspray · 10 mg€8796.99 USD€8.71/mgNo public tests
Limitless Biotech (Limitless Life Nootropics)USpowder · 10 mg€9099.99 USD€8.98/mgNo public tests
Limitless Biotech (Limitless Life Nootropics)USspray · 10 mg€93102.99 USD€9.25/mgNo public tests
Limitless Biotech (Limitless Life Nootropics)USpowder · 6 mg€5661.99 USD€9.28/mgNo public testsout of stock
Nootropic SourceUSspray€4549.95 USD—Own COA

Studies 6

Sources 5

More in Recovery, joints & healing all 5 →

  1. 1UC-II (undenatured type II collagen) CleanSupplement Oral≈ €32 / month60%positive12 reports40 mg/day chicken-cartilage collagen for knee arthritis pain via oral tolerance; slow, modest.
  2. 2Specific collagen peptides (Fortibone, Fortigel, Tendoforte, Verisol) CleanSupplement Oral≈ €13–25 / month51%positive25 reportsBranded collagen hydrolysates trialled for bone density, knee pain and tendons; safe, modest, slow.
  3. 3Mechano growth factor (MGF / PEG-MGF) Excluded Injection / Nasal≈ €27–110 / month53%positive5 reportsIGF-1 splice-variant peptide (plain or PEGylated) for muscle repair; disputed biology, cancer-cell signal.An unapproved growth-factor fragment with no human dosing data at all. The peptide drove prostate-cancer cell growth and metastasis in mice by a route that bypasses the IGF-1 receptor, and the pegylated form people buy has never been characterised.
  4. 4TB-500 / Thymosin beta-4 SDKPDMAEIEKFDKSKLKTETQEKNPLPSKETIEQEKQAGES (42 residues) Excluded Injection≈ €15–73 / month50%positive52 reportsHealing/actin peptide, almost always stacked with BPC; tumour-metastasis biology is a concern.Tβ4 has a well-documented pro-angiogenic and pro-metastatic role in cancer biology, and the fragment actually sold has no human safety data.

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.