Mass stack – level 1



-Increases endogenous growth hormone production

-Increases IGF-1 production

-The androgenic LGD-4033 increases the boy’s sensitivity to the operative effect of the IGF-1

-Increased strength

-Increased fullness

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Read individual product descriptions for a more comprehensive analysis of the respective compounds, but this particular combination works synergistically to add substantial amounts of bodyweight.


MK-677 increases natural IGF-1 production, which is an incredibly potent muscle builder. As a ghrelin mimetic it also increases natural growth hormone production significantly. Expect a boost to your appetite and metabolism, which pairs well with the strength and muscle gain you can achieve with the androgenic LGD-4033. The products are hydrophilic, so expect a substantial increase in fullness, that may come with water retention.




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