YK 11 by Dragon Pharma
What Is YK 11?
YK 11 by Dragon Pharma is an oral research compound often described as a SARM-hybrid, presented as 10 mg tablets with 100 tablets per pack. Structurally it is a steroidal selective androgen receptor modulator, and in research circles it gets extra attention because it appears to act on myostatin and follistatin signaling rather than working through the androgen receptor alone. That double pathway is the reason YK 11 is talked about for muscle density more than most SARM-type compounds.
In performance research the reported character of YK 11 is a strong, hard training feel with dense muscle and better strength output, which is why Dragon Pharma scores it 8/10 for mass and 6/10 for cutting. It is not a wet bulker: logs usually describe solid, compact tissue and a notable jump in pressing and pulling strength during the research window, alongside an aggressive training mindset. Tablets make the protocol simple, but that convenience is balanced by a heavy suppression profile.
YK 11 is a research chemical, not an approved drug, and it suppresses endogenous testosterone strongly in animal and cell models. Anyone treating it seriously treats the compound like a full androgen cycle: short window, bloodwork around it, and a PCT plan built before the first tablet. Dragon Pharma sells it as a reference product for laboratory and research use only.
YK 11 Research Use
Reference research protocols dose YK 11 once per day, and the tablet form makes that simple. The usual advice is to start low for the first week to judge tolerance before moving to the full serving.
| Protocol level | Daily reference | How many 10 mg tablets | Research window |
|---|---|---|---|
| Starting dose | 5-10 mg per day | Half to one tablet | 4 weeks to assess tolerance |
| Standard protocol | 10 mg per day | One tablet | 6-8 weeks |
| Advanced research | 10-20 mg per day | One to two tablets, split | 6 weeks max |
Bloodwork Guidance
Take the tablet with food at a consistent time each day, and split higher daily amounts between morning and evening. Because YK 11 suppresses testosterone quickly, researchers usually cap the window at 6-8 weeks, run bloodwork before, midway and after, and pair the compound with a base or a planned PCT. A 100-tablet pack lasts well beyond a single standard protocol at 10 mg per day.
YK 11 Stacks
In research practice YK 11 is usually paired with a testosterone base or with recovery and conditioning partners rather than with a second suppressive SARM. Every partner below belongs to the same Dragon Pharma line, so the whole stack keeps one manufacturing standard.
| Stack partner | Role in the stack |
|---|---|
| Propionat 100 | Fast short-ester test base that offsets YK 11 suppression |
| Cypionat 250 | Longer-ester test base for a steadier research window |
| MK 677 (Ibutamoren) | Appetite, sleep and recovery support during the protocol |
| GW 501516 | Endurance and conditioning partner for training output |
| L-Carnitine 500 | Work capacity and recovery support for recomp blocks |
| Nolvadex | SERM anchor for the post-protocol recovery phase |
| Clomid | Alternative PCT option after the YK 11 window |
Stacking two strongly suppressive SARM-type compounds together is not recommended in reference practice, since it deepens suppression without a clear benefit. Keep YK 11 as the single active signal, or put a testosterone base underneath it, and finalize the recovery plan before the first tablet.
YK 11 Side Effects
YK 11 carries the risks of a potent SARM-hybrid, and the two that dominate research logs are rapid testosterone suppression and cholesterol changes. It is not a mild supplement and should be treated with the planning of a full androgen cycle.
- Testosterone suppression: strong and quick; most protocols require a full PCT afterward
- Lipids: HDL cholesterol drops and LDL tends to rise during the window
- Joint discomfort and fatigue: common reports, usually managed with hydration and structured recovery
- Lethargy and mood changes: often track the testosterone level, more noticeable without a base
- Liver enzyme changes: possible with oral research compounds; bloodwork is the standard check
YK 11 is a research chemical. It is not approved for human or veterinary use, and its long-term safety profile is unknown. Keep it away from food, drink and skin contact, and store it out of reach of children.
For research use only. Nothing on this page is medical advice, and no dosing reference here is intended for human consumption.
What is YK 11?
YK 11 by Dragon Pharma is an oral research compound described as a SARM-hybrid and myostatin modulator. Each tablet holds 10 mg and the pack contains 100 tablets. It is studied for strength output, lean mass and muscle density.
Is YK 11 a SARM or a steroid?
YK 11 is often labeled a SARM because it is a selective androgen receptor modulator, but it is structurally steroidal. It also appears to influence myostatin and follistatin signaling, which is why researchers describe it as a SARM-hybrid rather than a plain SARM.
How does YK 11 work?
YK 11 binds the androgen receptor like a SARM while also appearing to lower myostatin activity through follistatin-related pathways. This combination is the basis of its reputation for dense muscle and hard strength gains in research settings.
What is the YK 11 dosage?
Reference research protocols use 5-10 mg per day as a starting point, with advanced protocols up to 20 mg per day. The Dragon Pharma tablet is 10 mg, so one tablet daily is the standard research serving.
How long should a YK 11 research window last?
Most YK 11 research windows run 6-8 weeks. The compound suppresses testosterone quickly and strongly, so longer runs deepen suppression and lipid changes without adding much benefit.
Does YK 11 suppress testosterone?
Yes. YK 11 suppresses endogenous testosterone strongly in research models, similar to or greater than many SARMs. A PCT plan and bloodwork around the protocol are considered essential parts of responsible use.
What are the side effects of YK 11?
The main reported side effects are testosterone suppression, unfavorable cholesterol changes, joint discomfort, fatigue and possible liver enzyme shifts. Long-term safety is not established, which is why YK 11 is treated as a research chemical.
How does YK 11 compare with other SARMs?
Compared with compounds like LGD 4033 or RAD 140, YK 11 is often described as more density-focused and more suppressive, with an extra myostatin-related mechanism. Its strength character is what separates it from the better-known SARMs.
Do I need PCT after YK 11?
Yes. Because YK 11 suppresses natural testosterone, a SERM-based PCT with a product such as Nolvadex or Clomid is the standard recovery step after the research window ends.
Is YK 11 legal and is Dragon Pharma YK 11 legit?
YK 11 is not approved for human use and is sold as a research chemical, so local law determines its status. Dragon Pharma YK 11 is a listed research product on gasproids.com with a stated 10 mg per tablet concentration and 100 tablets per pack.
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