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MK-677 (Ibutamoren), 15 mg

4.78 out of 5
(651 customer reviews)




MK-677 (Ibutamoren) Research Profile:

dependent on stack
dependent on stack
7/10 (cutting stack)
dependent on stack

Description: Growth Hormone (GH) mimetic/secretegogue; effects include improved lean muscle generation, improved metabolism and fat oxidization; some subjects also exhibit healthier skin and sleep improvement; often ran concurrently with any SARM or Prohormone.

Known for: Mimicking effects of Growth Hormone.

Commonly stacked with: Typical bulking stack: MK-677, YK-11 and RAD-140/or/LGD-4/or/S-4/or/S-23 | optional: MK-2866,
Typical cutting stack: MK-677 and GW-501516/or/SR-9009 | optional: MK-2866

Side-effects: Some complain of lethargy, increased appetite, tingly or numb hands/fingers


MK-677 (Ibutamoren) Chemical Profile:

Clinical data

Selective Androgen Receptor Modulator MK-677, MK-0677, Ibutamoren, L-163,191, Nutrobal, Oratrope By mouth none US: Investigational New Drug Ammonett Pharma

Pharmacokinetic data

24 hours


2-amino-2-methyl-N-[1-(1-methylsulfonylspiro [2H-indole-3,4'-piperidine]-1'-yl)-1-oxo-3 -phenylmethoxypropan-2-yl]propanamide 159634-47-6 9939050 n/a 154975 GJ0EGN38UL n/a 100.236.734

Chemical and physical data

C27H36N4O5S 528.662 g/mol n/a O=S(C)(=O)N(C2)c1ccccc1C23CCN(CC3) C(=O)C(NC(=O)C(N)(C)C)COCc4ccccc4 1S/C27H36N4O5S/c1-26(2,28)25(33)29-22 (18-36-17-20-9-5-4-6-10-20)24(32)30-15-13-27 (14-16-30)19-31(37(3,34)35)23-12-8-7-11-21(23)27/ h4-12,22H,13-19,28H2,1-3H3,(H,29,33)/t22-/m1/s1 UMUPQWIGCOZEOY-JOCHJYFZSA-N


* These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. Selective Androgen Receptor Modulators (SARMs) have not been approved in the US by the FDA for human consumption as dietary supplements. In accordance with US laws pertaining to the use of Investigational New Drugs (IND's) products labeled as SARMs on this website are sold for laboratory and clinical research purposes only, are intended solely for investigational use, and are to be used exclusively for purposes of a clinical trial that is the subject of an effective investigational new drug application; otherwise, you are not authorized to purchase our products. By using this site and/or purchasing our products, you certify you and/or your organization is/are qualified to possess, handle, and administer the products you purchase, that SARMTECH and its owners/agents are not liable for any unintended effects or outcomes, and that you are 21 years of age or older.


651 reviews for MK-677 (Ibutamoren), 15 mg

  1. 5 out of 5

    Jordan Wright

    [Subject] Had no side effects and ran a full 3 month cycle. [Subject] did the RAD-140 stack and put on 30 pounds with working out 5 days a week and eating healthy 3000 calories a day!

  2. 5 out of 5

    Timothy Kahler (verified owner)

    The MK-677 is very powerful. I really believe in this product. The quality and fast delivery are exceptional.

  3. 5 out of 5

    Aaron Abbott (verified owner)

    Crazy dreams

  4. 5 out of 5

    Michael Alley

    Amazing product!!!! You need to consider this!

  5. 5 out of 5

    Michael Alley

    Amazing product!!!!

  6. 4 out of 5

    Tokyo_vice (verified owner)

    Test subjects 1st cycle of MK677….excellent for appetite for hard gainers. The best part is how test subject would get the same effects on 6hrs sleeps as did before on 8hrs sleep

  7. 5 out of 5

    New Creation (verified owner)

    This is great stuff. Test subject receives dose nightly before bed. Increases sleep and keeps body fat low.

  8. 5 out of 5

    Sean Davis (verified owner)

    Appetite increased tremendously! Slept like a baby, recovery was insane! loved this product. will order again

  9. 5 out of 5

    Scott Michael

    Great product! Works as described!

  10. 5 out of 5

    Nikolaus Andresen (verified owner)

    amazing effects on [subject], significant hunger is seen in the am and rest in the evening, mood seems better too

  11. 5 out of 5

    XxFaustinoxx (verified owner)

    This gave [my research subject] an appetite. I love it. Sometimes it’s hard for [my subject] to get in the mood to eat, but with this I had no issue.

  12. 5 out of 5

    Michael Alley

    Love this stuff! I recommend getting the whole RAD-140 stack as this comes with it, and your gains will be unbelievable… for sure!

  13. 5 out of 5

    Sean Davis (verified owner)

    Fast Delivery, great product and compedative prices compared to other brands!

  14. 5 out of 5

    Jason Arseneault (verified owner)

    [Subject] started taking MK-677 the evening before going to bed, it has helped [subject] sleep! [Subject] then started to take it in the morning when [subject] woke up and I noticed a lot more benefit, in addition to making [subject] hungry which helped [subject] to eat more during the day I noticed a big improvement in [subject’s] strength during the day of [subject’s] trainings. I start it all over again! I recommend it to everyone!!!

  15. 4 out of 5

    Desmond Singh (verified owner)

    This definetly works, One thing i would say is it is better to be taken on an empty stomach and on a cut, eating carbs with this spiked the shit out of [subject’s] blood sugar, which is to be expected since GH and INsulin can’t be in the system the same time, so blood sugar doesn’t go down. I can def see my [subject] utilizing it to the fullest potential when on a cut and low carbs.

  16. 5 out of 5

    Sean Davis (verified owner)

    Great dose of 15mg unlike most other compaines which only sell 10mg not only that 90 caps. Perfect for maintaining gains, creating hunger and building stregth, enegery boost before the workout is great!

  17. 5 out of 5

    Marek Slusny (verified owner)

    Didn’t know what to thing of this company at first, but have to say amazing. Products came all the way to Australia. And quality seems good. Getting very good results. Can highly recommend.

  18. 3 out of 5

    Ashley Crawford (verified owner)

    noticed an increase in body mass using this while bulking. this can be quite suffient in any stack depending on your goals.

  19. 5 out of 5

    Justin Renfrow (verified owner)

    Nothing but good things to say. Honestly, the biggest difference for me is in the recovery. [Subject] sleeps so well on MK-677 that it’s worth it for that reason alone. Any gains are lean and if [subject] take it at night [subject] sleep well and won’t have the appetite increase if that’s a concern.

  20. 5 out of 5

    nitroteam (verified owner)

    Super product
    Downfall was made [subject] super hungry but changed the time [subject] took it to before bed and that worked out Better.

  21. 5 out of 5

    nitroteam (verified owner)

    Great product, great gains
    Downfall was made [subject] super hungry but changed the time [subject] took it to before bed and that worked out Better.

  22. 5 out of 5

    nitroteam (verified owner)

    Retuning customer, super fast shipping, real gains noticed in 90 days

  23. 5 out of 5

    Eddie (verified owner)

    Could definitely tell [subject] was getting better rest, did get headaches first week.

  24. 3 out of 5

    Sean Davis (verified owner)

    Pretty good, I would say a standard level on pare with most other MK 677 brands, no massive pros or massive cons. No depression, no moodness. But no real massive strength boost or libdio either other brands do have. Also no bloating which is great. Just muscle growth over an extended preiod of time. Will buy again!!!

  25. 5 out of 5

    Austin Madruga (verified owner)

    After reading many reviews claiming joint repair and overall wellness improvement, as well as huge increases in appetite and sleep quality, I decided to stack this with RAD140 for a recent Hypertrophy cycle. I ran it [in my subject] for six weeks at 15mg a day and the RAD140 at 20mg a day, followed by a standard, one compound PCT. As [subject is] nursing some bad knees, currently with a torn ACL, I was eager to see how [subject] would respond to the MK-677.

    Subjective findings: MASSIVE appetite gain. Food cravings were intense and insatiable. Moderate improvement in sleep. Joint pain decreased. Skin seemed healthier.

    I’ll definitely run this compound again, although I’m not too sure how it will do for a cutting cycle, given the appetite gain. It really is a massive increase. Overall, I’d say great ancillary for a bulking cycle!

  26. 5 out of 5

    Alex Layton (verified owner)

    Subject slept better and had increased appetite. Recommended.

  27. 5 out of 5

    MiaG (verified owner)

    Great product and service!

  28. 5 out of 5

    dylan fisher (verified owner)

    First time taking. Excellent choice. Noticeable increase in strength within 2 weeks

  29. 5 out of 5

    KR (verified owner)

    [Subject] noticed huge strength gains from this. The hunger wasn’t too bad, [subject] slept great.

  30. 5 out of 5

    James Cluff (verified owner)

    Strong supp with Osta. Very noticeable effects.

  31. 5 out of 5

    Jason Malone

    Consistent as always

  32. 5 out of 5

    X-man (verified owner)

    I am a returning customer. I love the many ways to receive savings points, quick shipping, and professionalism!

  33. 5 out of 5

    JBRAVO (verified owner)

    Like using it with pct or with rad 140 or Lgd

  34. 5 out of 5

    Ian Woodward (verified owner)

    Great sleep and my skin and hair are extremely healthy. [Research suject] always feels good when on this. Great for appetite also, as [subject is] a hard gainer.

  35. 5 out of 5

    Ryan Maloy (verified owner)

    If trying to get in your caloric intake for the day on a bulking routine, then this is definitely for [your research subject].

  36. 5 out of 5

    Jack Smothers (verified owner)

    Didn’t really get much of increased hunger but maybe because the subject took it right before bed.

  37. 5 out of 5

    Derek Johnson (verified owner)

    Increased appetite instantly. Slept like an angel. Dreams were very vivid. Workout recovery time was superb. Lots of capsules for a great price, not to mention the high quality.

  38. 4 out of 5

    Tokyo_vice (verified owner)

    Test subject had no hunger issues. Sleep was much more restful and recuperate. 5hrs sleep felt like 7 hours.

  39. 5 out of 5

    Matt Sevi (verified owner)

    Legit stuff

  40. 5 out of 5

    Rashid Derbas (verified owner)

    Awesome stuff so far!

  41. 4 out of 5

    Rashid Derbas (verified owner)

    Doing exactly what it’s suppose to be doing. Can already see results

  42. 5 out of 5

    Rickey Walden

    If your looking for a product that is awesome to use in a stack. This is the one that can be stacked with either bulking or shredding. You do have to be careful. It will make you over eat. But all around great product!

  43. 5 out of 5

    Jamie R.

    Killer shtuff!

  44. 5 out of 5

    Tarheel336 (verified owner)

    Great for cutting, noticeable fat loss and keeping muscle mass while in a calorie deficit. Also helps get a better sleep at night.

  45. 5 out of 5

    Alex Layton (verified owner)

    Subject recovery time was better, sleep improved as well.

  46. 5 out of 5

    Christian Loth (verified owner)

    Legit stuff, doing exactly what it’s supposed to do

  47. 5 out of 5

    Tyler Dorsey (verified owner)

    First time running MK677 and I have to say it’s pretty crazy how hungry this makes my lab subject. It comes in waves through the day but when it does he absolutely destroys food. In a bulking stage at the moment so anything to help hit that extra calorie surplus is a big help!

  48. 5 out of 5

    James Horvat (verified owner)

    Very happy with the product good highly recommend

  49. 5 out of 5

    Tyran Jarman

    Fast delivery and quality product that delivers results 👌

  50. 5 out of 5

    Tommy Chay (verified owner)

    Appetite increased tremendously! Slept like a baby, recovery was insane!

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MK-677 (Ibutamoren), 15 mg