If you have a blend that is going to work for you give it a go. Most used blend is probably a cut mix which is very handy and alot of us have probably used. Often times 1 compound isn't at the dose you like so you have to add more of that compound separately. Helps to reduce pinning volume is really the only advantage, which is a biggie when running a complex cycle, for most though just better off mixing the compounds separately to tailor doses for you. Pip can often be a concern with blends because you are normally packing a lot of mg into 1ml.

Yeah, I prefer separate. Mixes can come in handy on complex cycles to keep oil volume down, but unless you are building your cycle around the doses in the mix, it is rare that you will find just the right amount of each substance to meet your dosing goals. Also, you can only hope that there is actually as much of each substance as advertised. Finally, the higher the concentration of gear the greater the chances of bad pip.

I have used them in the past from trusted sources, but must prefer to keep them separate.

Personally I prefer separate , most of the time when I see a blend and read the ester breakdown and mg per ester i always think I wish I could remove one ester or change one ester to a higher mg so in the I don't buy it .

You should have searched this because it’s been asked 100 times.

My blends are never recommended and individual bottles always will be. When you’re mixing two compounds together and one is going to cost more than the other, how often do you think the mix ratio will be exactly what they say? Rare, if ever. On top of that, finding the right mix ratio is almost impossible. And would not allow you to change or adjust it if youerbgetting side effect from one compound or the other.

Stick with the seperates - Blends are always either underdosed or have a hormone missing, and often cause lumps as they are so thick.

I like the idea of having it all in one vial instead of having to draw from two, or in some people's case three, but I usually can't find blends in the ratio I need and have to buy separate.

I would stick with separate.

But that is just me.