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YK-11 suppresses Myostatin, which means muscles grow faster and larger without any side effects usually experienced with other Myostatin suppressing compounds like AAS or Prohormones.
One of the most frequently reported effects of YK-11 is that of increased pumps and muscle fullness, with many users claiming that this effect is even greater than when using oral AAS or Prohormones. YK-11’s ability to build muscle has been compared to testosterone, far exceeding other SARM’s.
YK-11 has few side effects. Low level of suppression is possible in long term high dose use.
YK-11 is dosed at 5mg per day for beginners and 10mg per day for advanced users. Cycle’s should run 4-6 weeks. Half-life is estimated at 6-10 hours. YK-11 can be stacked with other compounds for a big boost in muscle gaining potential. YK-11 is suited for cutting or bulking cycles and will excel in both uses.
(17-alpha,20E) 17,20- [(1-methoxyethylidene)bis(oxy)] 3-oxo-19-norpregna-4,20-diene 21-carboxylic acid methyl ester
YK-11 was first created as a novel compound in 2011 by Yuichiro Kanno of Toho University who confirmed in a study that this compound was in fact a SARM.
YK-11 is a partial androgen receptor agonist binding weakly at the androgen receptor and a potent myostatin inhibitor. Myostatin is a protein that slows muscle cells growing and dividing. YK-11 causes increased levels of another protein called Follistatin. Follistatin is an antagonist that suppresses the activity of Myostatin, leading to faster muscle growth and cell development in muscle tissue.
YK-11 can increase Follistatin production more than DHT - which the strongest male hormone we naturally produce. Usually excess DHT would have the effect of causing baldness and prostate enlargement as side effects, but not with YK-11 - it doesn’t have this side effect at all due to it’s weak AR affinity. The methyl ester may cause very mild liver toxicity in long-term high dose use.
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You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.