How it works
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Selectively binds to androgen receptors in muscle tissue, helping drive muscle‑building signals.
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Increases follistatin, a protein that counteracts myostatin, which normally limits muscle growth.
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By lowering myostatin activity, it may allow more muscle fibres to grow and thicken.
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Supports strength and performance by enhancing anabolic signalling without full steroid profiles.
Benefits
✓
Rapid lean muscle gain
Chosen by users who want noticeable size and strength increases in a relatively short time.
✓
Helps push past plateaus
Myostatin inhibition may allow progress when training and diet alone have stalled.
✓
Supports dense, hard muscle look
Often used in phases where athletes want strength with lean, non‑watery tissue.
✓
Improved workout performance
More strength and endurance can translate into heavier lifts and harder sessions.
✓
Complements advanced stacks
Frequently stacked with other SARMs in serious body‑recomposition or bulking protocols.
Dosage and Safety
Timing Schedule
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YK11 is an experimental SARM and is not an approved medicine, food or dietary supplement.
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Human long‑term safety data are limited.
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It can significantly suppress natural testosterone and may influence liver enzymes, blood lipids and cardiovascular markers.
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Human data are limited; typical discussion ranges are 5–20 mg per day, but this is not medical advice.
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Possible side effects include sleep disturbance and androgen‑related issues.
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Not for pregnant or breastfeeding women, or anyone under 18 years old.
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Not for people with an existing health condition or comorbidities.
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Always consult a physician before considering experimental substances.
Ingredients
Component
Dose per Serving
% DV
YK11
10 mg
*
Black Pepper Fruit Extract (Piper nigrum)
5 mg
*
Vegetable capsule (HPMC)
—
*
*Daily value (DV) not established
Use together (Bundle)
FAQ
How does YK11 work?
YK11 binds to androgen receptors in muscle and boosts follistatin, a protein that counters myostatin. Lower myostatin activity may allow more muscle growth than usual, which is why advanced lifters use it in heavy muscle‑building phases. Always treat it as experimental.
Is YK11 legal?
In many places YK11 is sold for research use only and is not an approved drug. Sports federations usually ban it. Always check your local laws and anti‑doping rules before buying or using any SARM‑like compound to stay compliant.
Can I stack YK11 with other SARMs?
Yes, many users stack YK11 with other SARMs for stronger effects. That also increases risk and stress on the body. Combining powerful compounds should only be considered by experienced users under medical supervision and with proper cycle support.
Will YK11 show up on a drug test?
Standard workplace tests don’t usually screen for YK11, but dedicated sports anti‑doping panels can detect it or its metabolites. Competitive athletes should assume it can be found and will be treated as a banned performance‑enhancing substance.
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