99.84% Pure Ostarine – Lab Verified | UK Manufactured | Only £36.95
High Purity Ostarine (MK2866) 60 x 10mg Capsules
Ostarine, also known as MK-2866, is one of the most widely studied selective androgen receptor modulators (SARMs). It was originally developed to explore how targeted androgen receptor signalling could influence lean tissue maintenance without the systemic effects traditionally associated with anabolic agents.
In controlled research environments, Ostarine has been examined for its ability to selectively bind to androgen receptors in muscle and bone tissue. This selective mechanism is what sets it apart in scientific literature and has led to ongoing investigation into its tissue-specific signalling profile.
Unlike non-selective androgen compounds, Ostarine has been studied for its targeted interaction patterns, which in clinical contexts demonstrated a generally well-tolerated profile when administered under supervision. It is this combination of receptor selectivity and documented human trial data that has contributed to its reputation as one of the most researched compounds in its class.
What Ostarine Is Known For in Research
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
Published clinical studies examining Ostarine can be accessed via indexed biomedical research databases such as PubMed.
Why Should You Choose Our Ostarine?
- Third-party tested with 99.84% purity, ensuring high quality and potency
- Excellent value at only £36.95 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 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 additional educational context on Ostarine (MK2866) and related research discussions, the following articles may be of interest:
Why MK-2866 Appears in Calorie-Deficit Research
An educational discussion examining why Ostarine is referenced in research exploring muscle retention and androgen receptor activity within calorie-deficit study models.
Ostarine Results: What to Expect from a Research Perspective
A research-focused overview reviewing how Ostarine appears in published studies, with emphasis on study design, observed research markers, and data limitations.
Is Ostarine Suitable for Women to Research? What Does the Science Say?
An analytical article exploring how Ostarine is discussed in scientific literature examining sex-specific hormonal signalling and receptor sensitivity within controlled research settings.
Customer Feedback
About our reviews
Verified 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.
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February 8, 2026
Trust me this is all you need to diet on!! More energy, muscle support and no falling off the end of cliff when you come off. If you’re eating whole foods and in a deficit doing things properly 20mg of ostarine will get you cut and dry without the side effects of roids
January 19, 2026
Product on point, super fast shipping and great value can recommend 👌
November 30, 2025
Always reliable, quick delivery and more importantly great ostarine. A returning customer.
October 9, 2025
I have now used Affordable Nutrition a few times and although I cannot fault any other companies that I have used, these guys have been great to deal with which is why I have continued to use them. Great selection of products and for the quality this ostarine is a very good price. Also whenever I email in with any questions they’re always quick to get back and are all round very helpful
August 20, 2025
Cycle finished very strong! Looking and feeling great. Really good advice very helpful. All in all great experience with no side effects whatsoever can recommend!
July 23, 2025
Reached out to AN and Antony was great, communication is amazing. If you’ve got a question he has the answer. I decided to research ostarine for 8 weeks followed by pct. I put noticeable size on, put around 4kg on, clean bulk 4500cal. I was stronger, looked fuller and mentally I felt extremely alert. Would definitely recommend this product. I had 0 side effects during my cycle also
July 18, 2025
Good product, steady gains and no sides. Not the same as AAS but you know this stuff is legit and much lower risk
June 10, 2025
Excellent service in delivering the product before time on the next day. Great quality ostarine added 5 kilo of lean mass so satisfied with the purchase and will certainly be using these guys again.
May 9, 2025
Absolute belter of a product and love working with these guys super quick on everything
March 1, 2025
Good booster with no bad effects 💪
November 5, 2024
Great product for lean gains and vascularity on a cut. Also delivers a nice boost of energy without any of the sides of injecting steroids, would recommend 100% 👌
August 19, 2024
Overall very happy after 60 days of 20mg. Went from 85KG to 89KG on a lean bulk. Good product for improving recovery, putting on size and gaining strength. Best part of all have kept about 95% of my gains with PCT
June 1, 2024
Coming to the end of the second bottle and seen results in strength, size and vascularity. Fkn love the stuff !!! Can't recommend a better ostarine from a more knowledgeable supplier
April 9, 2024
First time I've ever dabbled in sarms and the strength gains from this ostarine have been epic. Also managed to fit in an extra day per week due to better recovery. I've put on over 4 kilo in 10 weeks and look a lot thicker around the shoulders. Not had any problems as I'm about to start my PCT and still enjoying the occaisonal night out
January 31, 2024
I like this product
January 3, 2024
I'm coming to the end of my first 10 week research programme on 20mg per day and seen a noticeable difference in my muscle definition and strength. Also I feel fitter but that might just be as a result of losing the weight and changing my diet to high protein and high fat but still an unexpected boost. Energy levels up and no side effects whatsoever. Overall very happy about the changes this product has helped make!
November 12, 2023
Fantastic quality product with some of the best customer service that I've ever experienced. Thanks!!
October 7, 2023
Feel great, look the best I've ever looked. No side effects and no issues
August 25, 2023
My 2nd order from here and very impressed with the staff knowledge and delivery times. As for the product so far so good with no sides. 5 weeks in to a 10 week course and noticing improvements in pretty much every exercise. I'm holding the same weight but far better condition on a small deficit of calories.
June 29, 2023
Has to be the best ostarine i've ever tried with no excess water or bloating. Can recommend to anyone who wants to cut and maintain muscle mass.
June 10, 2023
Quality product at a great price. Delivery was super fast with great communication. Will be ordering again!
May 26, 2023
I added 5 kilo over 12 weeks with the help of this on a clean bulk. Zero sides to report and now onto PCT. Good price, quick delivery can recommend.
April 24, 2023
First time I've ever tried SARMs and probably a bit too early to see any results (1 week) but muscle pumps are notably more intense and my order arrived sooner than anticipated
April 6, 2023
Using this for a cut and I’m pleasantly surprised, very clean product. After 6 weeks still seeing strength and muscle gains on a deficit with no visible water retention.
March 27, 2023
Got this to try as a safe option to begin with and I’m pleasantly surprised. Could see the difference after 1 bottle so decided to buy another before running PCT. From what I’ve read I should keep most if not all of my gains. Everything is going in the right direction in the gym and I’ve not experienced any side effects apart from being hungrier. But for my body type (ectomorph) that’s a blessing because I like to get out on my bike too. Adding weight and muscle has always been a challenge but I may now have found the answer.
March 17, 2023
Good lean gains with no water retention or crash afterwards. Highly recommend!!
February 23, 2023
Good stuff noticed a difference in strength after two weeks and recovery has improved massive amounts.
January 19, 2023
High quality product well worth the money
January 14, 2023
I’ve never tried SARM’s before and so I was very impressed that results are starting to show! Would definitely recommend.