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Spectre Labs - US
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Ibutamoren, YK-11,
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USA Warehouse 2
YK-11 is perhaps the strongest sarms. There is no other anabolic that can compare to it’s effect. It increases muscle mass because it a myostatin inhibitor, meaning that it will stretch the user’s genetic limits much higher. It also repress the level of pro inflammatory cytokines and organ damage markers in the blood stream. MK677 on the other hand acts like a repair agent much like HGH.