Domestic supply has excellent testosterone in dbol. You're never gonna go wrong. Use Beligas or PharmaQo. Do the dbol 20 to 30 mg a day and testosterone up to 500 mg a week. Make sure you also order Aromasin.
When it comes to sarms, you don't need to over complicate things. I think the safest options for someone your age are nutrobal and GW. Those stack well together and they are not hormonal like anabolic steroids would be.
Definitely you need to use a support supplement and you also have to keep your cycle smart otherwise you'll end up hurting yourself. That's why I recommend going with n2guard as well.
Beligas and Pharmaqo are excellent options from Domestic Supply. They have you covered with great testosterone and equipoise. I would suggest going a little higher, maybe 400 or 500 mg of each for 14 weeks.
You are in luck because domestic supply has amazing growth hormone options. It's definitely the base to any peptide stack. You can go with beligas or you can go with pharmaqo. They are both excellent.
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I think you'll do fine stacking TB500 and BPC. I think those two would be good enough but the key is to run them at least 16 weeks. I know that's a long time but to be most effective that's what you have to do.
Make sure you check out the Deca from domestic supply. They also have excellent NPP as well. If you want to keep the site cycle shorter, you can always go with the NPP route.
I honestly haven't used KLOW yet but I've used several different healing peptides. I would say it's definitely worth a shot because it combines four different peptides all in one.