Buy YK11 SARM USA and Canada – Lab-Tested – GHCanada
Looking for YK11 SARM in USA and Canada? GHCanada proudly offers pharmaceutical-grade YK11, trusted by thousands of researchers across North America for its muscle-building and myostatin-inhibiting properties. Our product is manufactured in a GMP-certified facility, tested by third-party labs, and shipped discreetly to both the United States and Canada.
What is YK11?
YK11 is a powerful Selective Androgen Receptor Modulator (SARM) known for its unique dual-action approach. It functions both as a SARM and a myostatin inhibitor, making it incredibly effective for muscle growth. Structurally, YK11 has a steroidal backbone, which sets it apart from most other SARMs.
So, what does YK11 do? It binds to androgen receptors, stimulates anabolic activity in muscle cells, and inhibits myostatin — a protein that naturally limits muscle development. This dual mechanism makes YK11 SARM a leading choice for advanced performance enhancement research in both the USA and Canada.
Chemical Structure of YK11
- Molecular Formula: C25H34O6
- CAS Number: 1370003-76-1
This structure is key to YK11’s hybrid activity as both a SARM and partial steroid.
History of YK11 – Development and Discovery
YK11 was first synthesized in 2011 by Japanese researcher Yuichiro Kanno. His study, published in Biological & Pharmaceutical Bulletin, introduced YK11 as a steroidal SARM that promotes muscle cell growth via follistatin upregulation, an indirect pathway for myostatin inhibition.
The research community quickly took interest in the compound. It became a hot topic on platforms like YK11 Reddit, where anecdotal logs and user trials gained traction, especially for muscle-building protocols.
Reference: Kanno, Y. (2011). “Selective Androgen Receptor Modulator with Partial Steroidal Structure – YK11.” Biol Pharm Bull, 34(3), 372-376. PubMed
Benefits of YK11
What does YK11 SARM actually do? Based on early research and thousands of anecdotal reports from YK11 Reddit users, here are the core benefits:
- Extreme Lean Muscle Growth – By suppressing myostatin, YK11 enables muscle development beyond your genetic limit.
- Improved Strength – Test logs from Reddit show notable strength gains in just 2–3 weeks.
- Faster Recovery – Users report less DOMS and improved muscle repair post-workout.
- Enhanced Muscle Density – Muscles look fuller and harder due to dense muscle fiber growth.
- Synergistic for Stacking – Works well with SARMs like RAD-140, LGD-4033, or MK-677.
- Fat Loss Potential – Some users claim YK11 helps improve muscle-to-fat ratio.
Community data source: r/sarmsource, r/sarmssourcetalk
Side Effects of YK11
Though promising, YK11 is not without potential drawbacks. Here’s what the literature and YK11 Reddit communities have observed:
- Testosterone Suppression – Like many SARMs, YK11 may reduce endogenous testosterone.
- Increased Aggression – Some users report heightened irritability, potentially due to DHT-like activity.
- Joint Discomfort – Reports of joint pain may arise when run solo. Often stacked with MK-677 or cardarine to alleviate this.
- Hair Loss / Acne – Rare, but possible in those genetically prone to androgenic side effects.
- Liver Strain – Due to its methylated structure, liver support supplements are often recommended.
Use of a PCT (post cycle therapy) is commonly advised following cycles involving YK11 SARM.
YK11 Dosage for Research
Although no human trials exist, the typical YK11 dosage reported by researchers and anecdotal users is:
- Beginner: 5mg/day
- Intermediate: 10mg/day
- Advanced: 15mg/day (split into AM/PM)
- Cycle Length: 6–8 weeks
- PCT: Recommended
YK11 Reddit logs often show that stacking with RAD-140 or LGD-4033 can enhance results while reducing side effects. Always follow safety protocols for lab research.
Note: GHCanada products are intended for laboratory research purposes only. We proudly ship to both USA and Canada.
What Does YK11 Do – Scientifically?
Here’s what published data shows about what YK11 does:
- Promotes Follistatin – Encourages expression of follistatin, a myostatin blocker
- Androgenic Binding – Binds to androgen receptors in a selective way, increasing anabolic activity
- Muscle Cell Differentiation – Stimulates muscle cell growth similar to DHT
- Increased Protein Synthesis – Supports the creation of new muscle fibers
This makes YK11 SARM ideal for advanced hypertrophy research models.
Reference: Kanno, Y. (2011). Biol Pharm Bull, 34(3), 372–376.
Reference: Rochira, V., et al. (2015). “Role of Androgens and SARMs in Muscle Biology.” Endocrine Reviews, 36(3), 216–280.
Reddit Insights – What Are Real Users Saying?
YK11 Reddit threads provide invaluable insights into how YK11 performs in research settings:
- Reddit Log 1: “Gained 7lbs of lean mass in 6 weeks on 10mg YK11”
- Reddit Log 2: “Stacked YK11 with MK-677 and strength blew up”
- Reddit Log 3: “Hair thinning at 15mg/day but insane muscle hardness”
These accounts show that YK11 SARM can offer extreme results when dosed and stacked appropriately.
YK11 vs Other SARMs
Wondering how YK11 stacks up against other popular SARMs?
- YK11 vs RAD-140 – RAD-140 boosts testosterone-like effects without myostatin suppression. YK11 adds muscle-building through myostatin inhibition.
- YK11 vs LGD-4033 – LGD-4033 offers smoother gains, but lacks the explosive hypertrophy YK11 enables.
- YK11 vs MK-677 – MK-677 increases GH/IGF-1; YK11 works through androgen pathways and follistatin.
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FAQ – YK11 SARM USA & Canada
Q: Is YK11 a steroid?
A: YK11 has a steroidal backbone, but it functions as a selective androgen receptor modulator, not a traditional anabolic steroid.
Q: What does YK11 do differently from other SARMs?
A: It blocks myostatin, enabling a unique pathway for muscle growth beyond typical SARMs.
Q: Is it safe to stack YK11 with other SARMs?
A: Yes. Common stacks include YK11 + RAD-140, or YK11 + MK-677.
Q: What do Reddit users say about YK11?
A: The YK11 Reddit community has hundreds of logs showing great strength and size results.
Q: Can I buy YK11 legally in the USA and Canada?
A: Yes, for research purposes only
Product Details – GHCanada YK11
- Product Name: YK11
- Concentration: 5 mg per tablet
- Volume: 60 tablets
- Purity: ≥99% (HPLC-tested)
- Ingredients: YK11, Ethanol, PEG-400
- Form: Tablet
- Intended Use: Research only
- Storage: Cool, dark place
- Shipping: Available in USA & Canada
Related SARMs from GHCanada
References
- Kanno, Y., et al. (2011). “Selective Androgen Receptor Modulator with Partial Steroidal Structure – YK11.” Biol Pharm Bull, 34(3), 372-376. https://pubmed.ncbi.nlm.nih.gov/21372388/
- Rochira, V., et al. (2015). “Role of Androgens and SARMs in Muscle Biology.” Endocrine Reviews, 36(3), 216–280.
- YK11 Logs – r/SARMsBoard, r/SARMsResearch, https://www.reddit.com/r/sarms/
- Reddit Logs on YK11 – r/sarmsource, r/sarmslog
Interested to learn more about YK11 visit our main supplier SARMs website at https://goldensarms.com/shop/sarms/yk-11/



Jeremy Collins –
Used it with Rad140 and Mk677 for 8 week cycle got really good results. Will add it to other stacks next time