When to start AI with Test E

**against_grain** · 04-05-2014, 11:46 AM

When running Test E it seems that the onset of effects is commonly between 2-4 weeks- beginning after week 3 for many people. Therefore would it not make sense to begin running AI at week 2 at the earliest?

Likewise- if it takes 3 or 4 weeks for your body to strip the Enanthate ester off the Testosterone , would it not seem logical to not begin PCT until 4 weeks or even longer after your last Injection?

**Bio-Active** · 04-05-2014, 11:52 AM

Originally Posted by against_grain

When running Test E it seems that the onset of effects is commonly between 2-4 weeks- beginning after week 3 for many people. Therefore would it not make sense to begin running AI at week 2 at the earliest?

Likewise- if it takes 3 or 4 weeks for your body to strip the Enanthate ester off the Testosterone, would it not seem logical to not begin PCT until 4 weeks or even longer after your last Injection?

Labs are the only way to know 14 days from my last pin of test c my levels drop to about 140 ng/dl. I would start your ai when you start the cycle

**kelkel** · 04-05-2014, 11:54 AM

Test peaks in about 24 hrs or so. This means estrogen will spike as well. It takes time to build up serum levels of T but it does not mean you can avoid estrogen spikes or sides. Begin your AI on day two.

Fourteen days is fine to start pct with test E. You don't want to wait until you have zero T in your system to start pct. How do you think you'd feel if you did that?

**kelkel** · 04-05-2014, 11:54 AM

Afternoon Jim.

**NoBulkNoCutJustGrow** · 04-05-2014, 11:56 AM

I start my AI from day one. Just because the testosterone isn't "active" yet doesn't mean it's not converting to estrogen during the first 2 weeks. The idea is to have hormone levels as stable as possible; adding an AI at week 3 or 4 would disrupt (temporarily) this balance IMO. I run it from day one because I'm gyno prone and I don't want to give Estrogen a remote chance of building up, but that's just me.

As for the second part. Test E has a half life of 14 days; that's why we say to start PCT 14 days after last test e pin because 14 days after your last pin all the external test you were introducing would be gone from your system as it's not active testosterone any more and that's the time when you need to start producing your own.

Hope it helps.

**Bio-Active** · 04-05-2014, 11:57 AM

Originally Posted by kelkel

Afternoon Jim.

Hi Kelkel its still morning here

**against_grain** · 04-05-2014, 12:27 PM

Originally Posted by NoBulkNoCutJustGrow

I start my AI from day one. Just because the testosterone isn't "active" yet doesn't mean it's not converting to estrogen during the first 2 weeks. The idea is to have hormone levels as stable as possible; adding an AI at week 3 or 4 would disrupt (temporarily) this balance IMO. I run it from day one because I'm gyno prone and I don't want to give Estrogen a remote chance of building up, but that's just me.

As for the second part. Test E has a half life of 14 days; that's why we say to start PCT 14 days after last test e pin because 14 days after your last pin all the external test you were introducing would be gone from your system as it's not active testosterone any more and that's the time when you need to start producing your own.

Hope it helps.

If test E has a half-life of 14 days- then that would mean that exactly half (50%) of the last injection would still be in your system in 14 days. In another 14 days- 50% again of that value would now be present.

You said "14 days after your last pin all the external test you were introducing would be gone"

I don't think this is exactly correct. Based on a 14 day half life- some Test E will be present for several weeks after the last injection. I do understand it makes sense not to wait until your test reaches zero before staring PCT- but starting PCT with exogenous test in your system would be too early.

**kelkel** · 04-05-2014, 12:29 PM

Originally Posted by against_grain

If test E has a half-life of 14 days- then that would mean that exactly half (50%) of the last injection would still be in your system in 14 days. In another 14 days- 50% again of that value would now be present.

You said "14 days after your last pin all the external test you were introducing would be gone"

I don't think this is exactly correct. Based on a 14 day half life- some Test E will be present for several weeks after the last injection. I do understand it makes sense not to wait until your test reaches zero before staring PCT- but starting PCT with exogenous test in your system would be too early.

Half life is 5-7 days. Terminal is 14 or so metabolism dependent.

**against_grain** · 04-05-2014, 12:45 PM

Originally Posted by kelkel

Half life is 5-7 days. Terminal is 14 or so metabolism dependent.

That would make more sense. One aspect I am still trying to understand: If test E has a half-life of 5-7 days, why does it take 3+ weeks for it to become active and start raising test levels? This would imply it is active in the body for longer than 14 days??

**kelkel** · 04-05-2014, 01:14 PM

It simply takes time to raise serum levels and for your body to start utilizing it. Think of someone who starts TRT. It doesn't work "that day," it takes time for the effects and benefits to be noticed. Or other medications, like maybe Claritin or even Nolvadex . They take time to build up to where they are noticeable and effective.

**Bio-Active** · 04-05-2014, 01:38 PM

Originally Posted by against_grain

That would make more sense. One aspect I am still trying to understand: If test E has a half-life of 5-7 days, why does it take 3+ weeks for it to become active and start raising test levels? This would imply it is active in the body for longer than 14 days??

it takes time for levels to become steady. It doesn't take long to raise test levels at all. Your levels peak 24-48 hrs post injection. It just takes time for your levels to become steady