Promagnon prohormones are very similar to Halodrol prohormones. In terms of effects (mass gains, strength increase), we can consider that they are at the same levels. However, Promagnon prohormones are known to be more good/effective at bulking.
The active compound of promagnon prohormones is 4-Chloro-17a-Methyl-Andro-4-Ene-3,17b-Diol. It converts to the promagnon steroid aka Chloromethylandrostenediol.
The Promagnon prohormones were first introduced by Peak Performance Labs with Promagnon-25. Then Competitive Edge Labs launched their official clone with P-Mag.
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