I’ve never encountered any prolactin issues with either at doses up to 600 of deca and tren. Probably a good idea to keep it on hand and my experiences are anecdotal. As for mast, it’s a great drug to run alongside and it’s the only AI type product I’ve run with high doses of test but I’m also not estrogen sensitive or gyno prone. Test, tren and mast stack is tried and true. Whether you’ll need and AI or SERM is purely individual and your sensitivities to gyno will be the critical factor. Any issues previous? Again, probably good to have on hand. I do better with higher estrogen levels and increased prolactin doesn’t seem to negatively affect me either except for some slight anorgasmia





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