99.38% Pure MK677 – Lab Verified | 25% More MK677 Per Capsule | Only £37.95
High Purity MK677 (Ibutamoren) 60 x 12.5mg Capsules
MK677 is a ghrelin receptor agonist studied for its role in stimulating endogenous growth hormone (GH) and insulin-like growth factor 1 (IGF-1) signalling pathways.
Unlike exogenous growth hormone administration, MK677 has been examined in controlled studies for its ability to influence hormone release via receptor interaction.
What MK677 Is Known For
MK677 (Ibutamoren) has been widely studied for how it influences growth hormone signalling within the body. In controlled settings, it has been examined for its ability to:
- Increase measurable growth hormone (GH) and IGF-1 levels
- Support lean tissue development pathways
- Support fat metabolism signalling
- Support recovery-related hormonal activity
- Promote collagen-associated processes linked to skin and connective tissues
- Associated with better sleep quality in research settings
- Studied as an oral option instead of injectable GH
- Studied in relation to age-related hormone decline
Published literature discussing ibutamoren can be accessed via PubMed.
Why Should You Choose Our MK677?
- Third-party tested with 99.38% purity, ensuring high quality and potency
- Now 25% stronger, with each capsule containing 12.5mg of MK677 (previously 10mg)
- Excellent value at only £37.95 per 30-60 day supply
- Manufactured in a UK ISO 9001 certified facility under strict GMP quality controls
- Absolutely no ready-made imported capsules with zero quality control and over inflated prices
- Trusted by over 30,000 customers nationwide
Moreover we provide full transparency with an up-to-date Certificate of Analysis available in the Data Sheet section so you know exactly what you’re getting.
Shipping & Packaging
- UK-based same day dispatch (if ordered before 4pm workdays)
- Fast and reliable 24hr trackable shipping
- Discreet and secure packaging
Further Reading
For those looking to explore the scientific and research context in more detail, the following articles provide additional background and discussion based on published literature and observational research analysis:
A deeper look at sleep architecture, hormonal rhythms, and how MK677 is referenced in controlled research examining sleep-related markers. MK677 and Sleep Quality: A Research-Based Discussion
The following article explores MK677 within a research context, focusing on how it appears in scientific literature and controlled study discussions. Do MK677 Side Effects Lessen Over Time? What Research and Experience Suggest
An overview of how MK677 appears in studies examining bone metabolism, mineral density pathways, and long-term endocrine signalling. MK677 and Bone Health: What the Research Suggests
Customer Feedback
About our reviews
Verified customer reviews represent personal opinions and individual experiences. They should not be interpreted as scientific claims or advice.
This product is sold for laboratory research purposes only and is not intended for human consumption. Any references within reviews to effects, outcomes, or experiences should not be interpreted as medical advice.
April 9, 2026
First time researcher at Affordable Nutrition, very pleased with results and value. Genuine product, efficient and speedy service. Will come back again
April 1, 2026
Gained weight bulking but also some water too
March 18, 2026
Ordered mk677 from these guys was great could’ve eaten the fridge. Definitely good for a bulk!
March 11, 2026
Awesome deal 10/10 recovery in a bottle!
March 3, 2026
Very good service and product, reaping the benefits of better sleep especially as I regularly work nights. Building a bit of muscle as well so overall I am very pleased with my order
February 19, 2026
This MK677 has worked well, helped fixed my sleep which at one point thought was permanently broken, probably due to excessive drinking. Now the booze has been knocked on the head, started back at the gym and enjoying the buzz of every small win. Early days and a long way to go but not felt this positive in a long time, top product 👌
February 4, 2026
Very happy with the MK-677. Thank you very much guys i will order again.
January 28, 2026
Great product, excellent service – the team are extremley knowledgable and thorough in responding to queries and deliveries are always prompt. Highly recommend!
January 27, 2026
Provided a much needed boost to help me get back in the gym at the tender age of 56. Feel more energised throughout the day but better still that horrible feeling of my health being in decline has now disappeared. Fantastic product!
January 14, 2026
Legit and reliable supplier. Used many times 💪
January 8, 2026
Very good for boosted recovery, sleeping better and feeling generally fresher throughout the day. Also excellent service, delivered before anticipated date, well packaged, item in excellent condition and as described. Very reasonable price. Would definitely use supplier again.
December 30, 2025
Excellent service, super fast delivery, really can’t faults these guys! Great Work!
Quality product, currently using 12.5 evening dose, hunger is manageable and benefits are improved sleep and recovery, general enhanced mood. May try 25 dose next to test.
December 20, 2025
Amazing product. Super fast delivery, and the customer service is A+++.
December 13, 2025
Ordered this product three items and it works a treat, the price is one of the lowest I found on the internet. Also got the enclo which was out of stock but it only delayed deliver by a day or so however they emailed me straight away and kept me updated. I was also able to change my delivery details after placing my last order. Fantastic products and customer service really recommend this company.
November 27, 2025
Very happy with the affect this product is having on my recovery, overall health and wellbeing. Communication and speed of processing are five star, very much looking forward to buying again from this company
November 18, 2025
Quality MK, reasonably priced and very quick to despatch! The guys here are brilliant, knowledgeable and friendly. Very responsive to emails if you need any advice.
November 8, 2025
Can report improved sleep and recovery, everything as expected really. I’ve ordered a few things from here now and have always had quick delivery, well packaged goods and good customer service; including rectifying my mistake when I said I’d pick them up from the wrong post office even though I live miles away. The price has always been competitive too.
October 31, 2025
Done a lot of research into this before taking it and asked a lot of questions via email before deciding to go ahead. I’ve had none of the side effects, only positive changes to strength and size.
Excellent communications and very detailed answers to questions outlining the pro’s and cons to all options.
Very good service and product
October 30, 2025
So far so good some encouraging signs but still early days
October 14, 2025
Ordered for the first time and received excellent customer service! The product arrived the next day with no problems. I would highly recommend!
October 11, 2025
Very pleased with the quick service and good product
October 3, 2025
Feeling good coming to the end of my bottle and going to buy another bottle to do another 30 days. I’m putting the work in and have stopped eating rubbish and seeing good results.
September 28, 2025
Can’t knock the speed of delivery, ordered late Friday afternoon and was delivered Saturday morning. Hopefully the product and results will be equally impressive
September 20, 2025
Brilliant product
Brilliant company
Brilliant service
September 7, 2025
Big fan of this MK-677 it properly puts your sleep into another dimension lol. Best time of day now is waking up, jumping in shower, taking my ABE and smashing gym 💪💪💪
September 3, 2025
Quality addition to a bulk and quick process of the order, delivery quick also. Great value MK, will be coming back here for the foreseeable future
August 26, 2025
Very good and fast shipping
August 15, 2025
I have been using this company now for 2 years and I have never had reason to say a bad word against it. Product does exactly what it says on the tin. Would recommend to anyone, cheap prices and great products!
August 8, 2025
After the first month of research I’m happy overall. Weight hasn’t changed much but I look a bit leaner and a bit bigger. Not made any major changes to my diet but I’ve noticed I’m hitting the gym more often which is helping me stay on the rails. Sleeping has improved having some vivid dreams and overall feeling better for it. Would like to make more progress but appreciate these things take time
August 3, 2025
Fast delivery and product as described
July 25, 2025
Good and reliable supplier.
July 16, 2025
Started my nightly 2 caps last night and woke this morning feeling fresh. Too early to tell obviously but impressed with the shipping, arrived in less than 24 hours of ordering on the standard service
July 9, 2025
Long time repeat customer, product is always superb and speed of delivery amazing which is why I keep coming back
July 2, 2025
Five stars for every order so far from a longterm customer. Always a great product, speedy delivery, can happily recommend this company!
June 9, 2025
I’ve been using these products for a while now, and I can confidently say this MK677 is one of the best on the market. It’s 3rd party tested which is reassuring and it’s one of the most competitively priced options out there. Delivery is always quick and reliable, which is a huge plus. The staff are very quick to respond to emails and more importantly the product itself performs every time. Highly recommended if you’re looking for quality, affordability, and fast service all in one
June 2, 2025
Excellent MK-677 works well. Did the job of getting my sleep and eating back on track! Thank you
May 23, 2025
Legit product can defo feel the hunger kicking in 😋
May 19, 2025
From ordering online to delivery took less than 24 hours. Brilliant product & service
May 6, 2025
Good supplier of MK 677 received less than 24 hrs from ordering. Excellent service I’m very impressed! 🙂
April 22, 2025
Top product I didn’t want to come off these lol. I think there class even the hardest day in the gym your definitely not as sore the next day. Just got some more wont go anywhere else
April 17, 2025
I am 55 years old and this is a great supplement for enhanced recovery. Also I believe this has great skin benefits in addition to the other upsides
April 13, 2025
I’ve been using MK-677 consistently and it’s definitely working. My gym pumps have improved noticeably, and my appetite has increased. One unexpected benefit has been reduced joint tightness—my shoulders feel more relaxed during workouts. I’ve gained some water weight initially, but my muscles look fuller even on rest days. While I haven’t seen major size gains yet, I’m optimistic for results over a full 3-month cycle with proper training and nutrition. Will definitely be reordering soon!
April 4, 2025
About to start my 2nd bottle of MK-677 and think it’s working well. The hunger on 2 capsules every morning was very real to begin with which was an added bonus as I’m not naturally a big eater but this stuff has forced me into meal prep lol which can only be a good thing. Alongside that, despite it only being a month or so I feel like a good day has come off my recovery time and for the first time in ages I’m free from aches and pains in my wrists and forearms. So I’ve nothing but good things to report about this product, recommend it to anyone wanting the same benefits
March 31, 2025
Excellent product and super fast service 👌
March 25, 2025
I got these to help with muscle recovery and occasional stress induced (work related) insomnia. I was advised to try 25mg just before bed and within a few days I was sleeping better. Very good product for supporting overall well-being, feeling less anxious by the day!
March 17, 2025
Used this for the 1st time as part of my PCT protocol from a cycle of rad and osta. Didn’t notice much of a drop off at all, slept better and was still full and strong in the gym. Kept it going into my current cycle and I’m building muscle nicely. Quality addition thats well worth considering
March 14, 2025
High quality, super quick, efficient delivery and excellent price. Very positive experience with customer support 👏
March 5, 2025
Not going to lie transitioned over to this to save a few quid and was a little sceptical but to my surprise after a week this appears to have stronger effect on my sleep hence me leaving this review. Have to say I’m impressed guys will be coming back to order some more
March 3, 2025
Very good my recovery is better slowly putting weight on
February 23, 2025
Legit product can 100% feel the improvements in my sleep and mood can recommend 👍
February 17, 2025
I’ve ordered this MK-677 quite a few times now and whenever I place an order it arrives the next day. Super speedy and great product!
February 4, 2025
Good impact & effects, not using for gains, more for sleep & anti-ageing
January 30, 2025
Top quality, best price and a prompt and efficient service every time!
January 17, 2025
Feeling great! This MK helps keep the fat off on a bulk. Sleeping better and recovering faster in the gym! 💪💪
January 11, 2025
Everything exactly as said and zero drawbacks recommended to all willing to work hard on their health.
January 11, 2025
Fast acting, felt (much needed) improvements to my sleep after 3 nights of taking 2 before bed. Looking forward to seeing how the rest of the cycle unfolds. Also doing dry Jan which has to be helping my recovery too
January 3, 2025
Used for a few cycles now & can’t fault the quality. Shipping is always fast & reliable
December 18, 2024
Good product at good money, delivery is quick and trackable, can recommend. Will be a returning customer for sure
December 8, 2024
Personal fave that always works for me 💪
December 3, 2024
Delivered ahead of time. Packaged well and arrived in perfect condition. Legit product and I can always tell with MK677 because I'm straight back off to a deep sleep after my nightly trip to the toilet lol.
November 23, 2024
Quality mk that always works a treat with super fast delivery actually get it next day 🙌🏽
November 6, 2024
Excellent product and reasonably priced too. I struggle to eat to gain weight especially in the morning time so having 2 of these when I wake up with a glass of water makes all the difference. My recovery is also boosted and now seeing steady but continuous progress in the gym, mirror and on the scales!!
October 27, 2024
I do a lot of very early morning deliveries and go to the gym after otherwise it won't get done. Been feeling fatigued and flat for some time and somewhat going through the motions. So I decided to give this a try as I'm not getting any younger. Waking up now feeling a lot more refreshed and mentally alert. Also getting some decent pumps and look fuller without adding any extra calories before setting off. Could feel the changes inside the first week and the mental boost is an absolute bonus. I think my GH levels must have been very low perhaps due to living on 4-5 hours sleep because I’m a lot happier now
October 15, 2024
Early days but sleep and appetite have been boosted. Can't fault the service 100%! Arrived the day after selecting the 2-3 day option
October 1, 2024
I'm pleased to say this MK has worked and made gains in strength and size. I've worked extremely hard in the gym along side my diet and it did give some great effects. I'm still learning about these products and support has been a huge help. Thank you for the prompt replies offering detailed info
September 23, 2024
Does what it says it does. Hassle free delivery that was faster than expected. Will be a returning customer
September 9, 2024
Getting very good sleep and pumps, was a bit tired at first but not that bad. Customer service and speed of delivery always spot on 👍
September 2, 2024
Amazing product and amazing service !!
August 22, 2024
Used this mk many times now and always found the results to be excellent
August 2, 2024
I've been taking this MK-677 for 4 weeks now and seen a lot of changes. Feeling much better and starting to see the fat loss from the body parts
July 30, 2024
Speedy delivery and a good price. Shame they don't take credit cards
July 16, 2024
I rate this highly for improving quality and quantity of sleep. I train at 6am and feel much fresher and more energetic on a morning after 2 of these before bed. Also aches and niggles in both my wrists have practically disappeared after the first month so it must help a lot with recovery from wear and tear. No nasty side effects to mention either, quality addition to my regime.
July 1, 2024
Very quick delivery, excited to give this a try 🙂
June 27, 2024
Been rough recently having suffered 2 bereavements in as many weeks. 3 months off gym, appetite shot to sh*t and sleeping was literally a nightmare. I’ve taken mk-677 before some years back not from this company and remember it giving me a boost so went back online and found this place. After the first week my eating and sleeping had returned to something like so few days later made a commitment to get back to the gym and do a bit. Now I’m eating better and beginning to step things up. I’m not saying this is a magic pill but it helped me turn the corner and sort my head out so for that I’m giving it 5 stars.
June 11, 2024
Top product delivered fast. Could feeling it working within a week. Defo be ordering again
May 29, 2024
Super MK-677! This is the third time I’ve ordered and delivery is always asap and the customer support provided is always 10/10 too!
May 14, 2024
This is a good quality, good value mk 677 that does its job on a night and have to say the support Anthony provides is 2nd to none. They also use royal mail tracked next day instead of evri which for where I live is a huge win!!
May 2, 2024
Superb for keeping lean whilst putting on muscular mass. Always delivered next day excellent service can highly recommend!!
April 22, 2024
I'd leave this mk677 10 stars if I could. Have been doing wonders for my health and mental health. Sleeping so much better and waking up feeling positive and refreshed
April 10, 2024
I ran a fourteen week cycle of MK677 supported in the final six weeks by a short, six week MK2866 cycle alongside. I bulked from 97KG to 105KG. Whilst keeping lean and toning my chest, my traps, anterior and posterior delts "blew up", gaining both significant size and hardness. My prior injury to my MCL presented no issues during this period of time, and due to the ability to push harder due to improved sleep and recovery from week two of the cycle onwards, my quads and hamstrings also put on significant size during the cycle. Overall, very impressed, these are a superb combination for improving sleep, recovery, putting on size and gaining strength. I personally didn't experience the extreme hunger drive past the second week of the cycle, and didn't find this to be detrimental at all. Would strongly recommend this for a bulk. The combination of MK677/MK2866 in the final stages of the cycle led to a growth in energy surplus and motivation too, both physical and mental stamina took a huge boon during this stage of the cycle. Great stuff – so thank you.
April 3, 2024
So far so good making some solid gains after 3 weeks. Was taking 2 tablets on a morning but was feeling drowsy and tired so switched this to before bed and feeling much better
March 26, 2024
100% legit and delivered fast at a very reasonable price with some incredible customer service. Staff are very knowledgeable and always respond quickly and take time to answer questions properly 10/10
March 12, 2024
Tried a few brands but this stands out as the best so far! I'm eating a lot more but still maintain condition while getting bigger and stronger. Sleeping's much improved too and feeling amazing!
March 2, 2024
Super impressive service guys !! Ordered yesterday afternoon and delivered this morning (Saturday) on the normal service – Wow thank you !!
February 19, 2024
Fantastic quality product at a very good price and always delivered promptly. Slightly taken aback with the customer support these guys provide, they really go the extra mile – very professional I would highly recommend!
February 6, 2024
Great product for a recomp. Speeds up the process nicely. Look about 10 weeks in after 6 with taking 2 of these every night. Shipping seems reliable too, can recommend
January 30, 2024
Excellent service u guys,orderd the mk literally hours ago and my parcel to be delivered in the morning,I will definitely be placing further orders
January 22, 2024
Fast delivery!
January 22, 2024
I can actually feel the product kicking in with increased appetite and where as before I was only sleeping 4-5 hours a night I am now getting a good 7-8 hours of really good valuable sleep needed for my recovery
January 14, 2024
Been a week now so might be a bit early to see any gains but sleeping has improved and back motivated again after a few week layoff
January 12, 2024
Had a problem checking out so emailed in and had the fastest response to a ticket in my life 🙂 Anthony resolved the problem straight away along with providing some excellent advice to some other questions I had. MK-677 arrived the next day which I didn't even ask for. Fantastic customer service will be back for more
January 2, 2024
3rd order just arrived, delivery never disappoints. Very reliable supplier of a top quality MK677. Highly recommend
December 11, 2023
Fantastic addition to my rad cycle. Noticed improvements in sleep and muscle pumps in first week! Now after my first bottle, I look fuller and feel awesome so continuing throughout my PCT
November 28, 2023
Starting the product tonight but leaving a review for the speed of delivery and quality of comms, blown me away tbh, hopefully the MK is just as impressive
November 22, 2023
Perfect if you're struggling with sleep or niggles
November 16, 2023
Super good will defo be back for more 😉
November 7, 2023
Good booster for sleep. Take before bed because just sniffing this stuff will make you hungry. Hair and nails grow like mad too so you know its legit
October 26, 2023
Very fast delivery, arrived in less than 24 hours of ordering. As for the product, worth every penny!
October 20, 2023
Top quality product with amazing customer service. Will buy again
October 16, 2023
Awesome for sleep and recovery. Reasonably priced too!
October 6, 2023
Very happy with this mk677, best I’ve had. Surprised how fast delivery was too. Thanks guys!
September 20, 2023
Its like getting 10 hours shut eye in 6!! Waking up fresh and still getting awesome pumps training fasted
September 14, 2023
My coach recommended me this product and it hasn't disappointed! Increases in strength on multiple exercises after just 2 weeks. Big improvement in the sleeping department and I'm generally feeling a lot more positive about things. Delivery was also super fast, arrived next day on the standard service
September 8, 2023
Very happy with the product and price, arrived less than 24 hours from ordering, can recommend
September 1, 2023
I was recommended to take two of these just before bed and after just a few nights the length and depth of my sleep has improved significantly. After the 30 days the product has exceeded my expectations. Feeling a lot more chipper with more energy in and out of the gym with the results beginning to show!
August 22, 2023
Good alternative to the injections
August 18, 2023
I highly rate this product. After just 1 week my sleeping improved and appetite was boosted. At 49 you need all the help you can get. I'm no longer getting as rundown, even after stepping things up in the gym. Delivery is quick and customer support first-class – can recommend.
July 25, 2023
I'm a big fan of MK-677, used it many times before over the last few years so decided to give this a bash. I don't know if it's because I've not taken it for a while or that this is a super potent product but my sleeping is the best its ever been and I'm back training with a smile. I'll definitely be coming back for more. Excellent product!
July 7, 2023
As a longstanding customer I can vouch that this is an amazing product! Every benefit of having boosted GH I can attribute to this MK-677. Most notably, better sleep, improved recovery time and feeling great. I can wholeheartedly recommend this product to anyone who is lacking in these areas. The service from Affordable Nutrition is also second to none. Delivery is super quick as is their ticket response time, very affordable indeed!
July 2, 2023
Good product for sleeping but not as good as the rad for strength and gains
June 26, 2023
This product is 100% legit! Very happy with the gains and fullness and not as sore even after putting more work in. I also feel better in myself which I think is down to the better quality sleep.
June 16, 2023
Super good MK-677 and amazing customer service as always
June 10, 2023
Used this product a few times over least few years and found it to be amazing! Strength went up and packed quite a bit of muscle on also slept like a baby and just felt amazing. Just started back at the gym after a 6 month lay off due to some personal problems and ordered some mk677 from Anthony and already sleeping like a baby after just a few days. Anthony is a great bloke and has always been there for me when I've wanted advice and is my number one go to for supplements and advice!!!!
May 30, 2023
Works for me, boosts sleep and appetite and all-round recovery. Arrives in a day or two max. Good price and never had a problem with this supplier.
May 25, 2023
Very much the real deal. Noticeable improvements in strength, pump and sleep quality. Make sure you take before bed tho as the hunger is very real
May 10, 2023
Superb product, deep sleeps promoting fantastic recovery and ready to go again next day!
May 5, 2023
Seems to be working
May 4, 2023
Really loving the MK677 and have just ordered again. Sleeping like a baby!
April 27, 2023
Perfect every time
April 19, 2023
Great as always, good price and service, and most importantly quality product!
April 12, 2023
I have ordered mk677 from Affordable Nutrition 3 times now. This product is really good and does what it says on the tin.
April 12, 2023
Amazing product
April 6, 2023
Was a bit dubious about first taking this but after just 2 weeks I feel a lot fresher physically and mentally. I’ve got more energy and endurance in the gym and I’ve not slept this well since before I became a parent! I can recommend MK 677 for anyone in need of a boost. Surprisingly delivery took less than 24 hours of ordering, amazing service!!!
March 31, 2023
Super product!!
March 27, 2023
Very responsive on emails and arrived next day – 100% legit!
March 22, 2023
Love this product it works really well for me, since I’ve been taking it I’ve had a noticeable increase in strength and reduction in body fat
March 16, 2023
Absolutely amazing MK-677 supplement. I highly recommend purchasing from Affordable Nutrition, Anthony and the team are first-class in all they deliver and give you confidence in your purchase from start to finish. Super-fast delivery from them and will be buying again!
March 9, 2023
My favorite
March 7, 2023
Received it next day will buy again
March 2, 2023
Great product! Sleep quality improved within the first week and I’m starting to see the results too after 3 weeks. Muscle pumps seem more intense and although maybe placebo effect I’m no longer working around little niggles (especially in my left shoulder). Highly recommend.
February 22, 2023
Fantastic product!
February 16, 2023
Best MK677 I’ve had so far. Arrived next day will be ordering again!
February 11, 2023
Very pleased with this MK-677. Nearly 8 weeks in to 12 week cycle and experiencing all the benefits of boosted GH. Sleep is noticeably deeper and longer and I definitely feel more positive throughout the day. If like me you’re prone to getting rundown I highly recommend you do your research and consider MK-677.
January 19, 2023
Good stuff noticed a difference in strength after two weeks plus my sleeping has improved massively
January 14, 2023
Very good product. Keep up the good work!
January 9, 2023
I was recommended MK-677 from this site by my PT and I wish I’d have come across this sooner. Wasn’t sure what to expect but I’m sleeping better and have more energy through the day to train harder. It works!
January 5, 2023
Must admit took a bit of a chance with the price but absolutely delighted with the results and this is now my go to MK677 having been stung before. Knew it was the real deal after the tingling in the hands and incresed hunger in the first few days but it’s the recovery that I like most. I travel a lot with my job which means lots of early mornings and oftern late nights. Taking this has helped me maximise recovery so I can keep my training going keeping me sane! Highly recommend to anyone wanting help with their recovery