99%+ Pure Compounds – Lab Verified | UK Manufactured | Only £47.95
High Purity MK677 and MK2866 – Double Compound Formula
MK677 and MK2866 product combines 2 widely referenced investigational compounds into a single, clearly dosed capsule format:
• 10mg MK-677 (Ibutamoren)
• 10mg MK-2866 (Ostarine)
Compound Overview
This product brings together 2 compounds that act through different biological mechanisms:
MK-677 (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
MK-2866 (Ostarine)
In controlled settings, Ostarine has been examined for its ability to:
- Linked to increases in lean muscle tissue during calorie-controlled phases
- Associated with helping preserve muscle while dieting
- Studied for supporting strength-related performance markers
- Examined for its role in muscle maintenance during recovery periods
- Referenced in research exploring bone density signalling
- Known for selective activity in muscle tissue rather than the whole body
Each of the 2 compounds operates through a separate receptor system, which is one reason they are often discussed together in scientific literature.
Mechanism Summary
• A compound examined for growth hormone pathway signalling
• A compound studied for selective androgen receptor interaction
Because these mechanisms differ, they are frequently analysed together when examining muscle-related and endocrine signalling systems in controlled environments.
Published scientific literature discussing MK-677, MK-2866 and related signalling mechanisms can be accessed via the PubMed database.
Why Should You Choose Our MK677 and MK2866 Combo?
- Third-party tested compounds with 99%+ purity, ensuring high quality and potency
- Excellent value at only £47.95 per 30 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 up-to-date Certificates 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 additional educational context on MK-677 and MK-2866 as they appear in scientific literature, the following articles may be of interest:
MK-677 and Sleep Quality: What Research Examines – A research-based discussion of how MK-677 is referenced in literature relating to circadian hormonal rhythms and sleep modulation.
Ostarine for Cutting: Why MK-2866 Appears in Calorie-Deficit Research – A research-focused overview of how MK2866 is referenced when examining signalling in calorie-deficit contexts.
Ostarine Results: What to Expect from a Research Perspective – Mechanistic exploration of MK2866 signalling investigations.
Customer Feedback
About our reviews
Customer reviews represent personal opinions and individual experiences. They should not be interpreted as scientific claims or advice.Â
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 7, 2026
Good booster, happy with overall research results which went near enough to plan. Excellent service, delivered before anticipated date, well packaged, item in excellent condition and as described.
March 16, 2026
First rate product certainly aids sleep, recovery and joint mobility inside the first couple weeks. Now coming to the end of my cycle looking a lot fuller in the mirror around my chest and shoulders, 6KG heavier and had no side effects whatsoever. In fact I’d go as far as to say I’ve not felt this motivated in a long time 💪👊
February 25, 2026
Having initially been unsure if this was another gimmick like some other websites/products. I went ahead after reading positive reviews and doing some initial research online. My sleep quality has improved a lot and I feel fuller and stronger at the gym so win win. Will continue to purchase these, thank you.
January 10, 2026
Dropped nearly a stone on these on a pre Xmas diet and so much stronger. Apart from some increased hunger in the first week or so no sides whatsoever top top product
November 3, 2025
Coming to the end of my first ever cycle researching 2 tablets daily and thoroughly enjoying my workouts on them. Within a few weeks weights were flying up, I feel super focused and less fatigue during the day
September 9, 2025
I’ve been consistently cycling this stack for nearly 2 years now with no problems (run enclomiphene for PCT). The better sleep gives me more energy throughout the day and I’m recovering at 42 like I was 20 years ago. I’m still making gains albeit steady ones but I get to keep them and there’s no more daily fatigue and literally no side effects whatsoever
July 1, 2025
First time trying this out. It seems to do what it is intended to do
April 29, 2025
I’m really enjoying the product I’ve had a good bulk so far. Onto PCT for May hopefully will keep my gains before cutting in June
February 3, 2025
Made some decent gains and noticed some major improvements to my sleep and recovery. Overall solid and consistent progress with no crash at the end which tbh was the main reason I ditched prohormones to this type of “research.” PCT is still a must and yeah, you won’t make the same gains but its worth it in the long run and you’ll feel way better for it 💪🔥
November 20, 2024
All went well with no side-effects, improvements in strength and size and happy with the better nights sleep. Also arrived early, would recommend!
August 14, 2024
Happy customer here! Banging product and super fast delivery!!
May 30, 2024
I'm in week 4 of the cycle and my lifts have steadily progressed with no noticeable sides and much greater pumps. I'm aching less too so recovery is very much boosted. I recommend buying this as if you take 2 capsules per night, you'll 100% see the results in size and shape.
March 6, 2024
Been taking this for just over three weeks and have already gained about 10lbs. Strength and pumps have noticeably improved too. Top top product!
November 23, 2023
Into my 3rd course after 2 courses of mk677. Now on a bulk and still unsure about the rad140 so decided to opt for this. can tell the difference for sure. I'm on extra calories so would expect to fill out but not this fast. Muscle pumps are through the roof to the point of being painful for biceps. No sides experienced and it appears to be coming on lean, so all things considered I think I've found my new go to bulking stack !!
September 26, 2023
Kept me swole on a cut. Zero crash and solid gains. Will purchase again
July 28, 2023
Awesome product for lean gains and boosted recovery! AN is the only place I'll shop for sarm stacks.
June 13, 2023
Great combo stack and delivery was super quick
May 30, 2023
Quality stack and gains seem to be maintainable. Always super fast delivery and very responsive to emails
February 28, 2023
Love this product works every time.
February 23, 2023
I’ve been researching with this product now for 4 weeks and the difference in my sleep, strength and recovery has exceeded expectations. My body weight is about the same which is fine as I’ve been running maintenance cals but the recomp is quick and just ordered another bottle. Very impressed with the service too arrived next day on the standard service!
January 6, 2023
Ordered again best value around and works every time. Sometimes get next day delivery on the standard service too. The owner of the business really knows what he’s talking about and is always happy to help.
December 7, 2022
Ease of order, payment and delivery speed all 5*. I won’t comment on the product itself as “research” hasn’t commenced. Previous research means I know what to expect and hopefully the product will be 5* as well.
Many thanks AN team
August 30, 2021
Great product, that you can definitely feel take affect. Also had a problem with the order that was sorted out very quickly by the staff.