My friend read of a strong bulking cycle that involves combining Tren with Deca durabolin (he is not computer literate so I am posting for him)

Does anyone have experience or knowledge of this?

He has previously had good results with Deca, and then subsequently extremely bad results with oral steroids and then bad results with injectable testosterone (he lost all that he gained after testosterone despite post cycle therapy. But with the deca he maintained gains without even using post cycle therapy! Now he wants to try this combination of Tren with Deca to bulk up substantially.

Are there any precautions he must take, for example must he still use Tamoxifen when combining Tren with Deca etc. He is extremely prone to acne and blowing up of his face and prone to premature balding. Testosterone also made his skin tan all over.

Should he use an alpha reductase inhibitor when taking Tren combined with Deca. Please advise on what precautions he should take while on this cycle.

Many thanks in advance
Thanks