Quick Esther Question

[ottomaddox]

My question is in regards to Test-Cyp. In the below quote, it says that a certain percentage of the Total Testosterone is made up of an Ester.
So if you are taking a shot of Test-Enth: 1ml@250mg/ml, do you take into consideration that your actually getting only 180mg of free Test and shoot a little bit more?
The reason I ask is I'm using Test-Cyp for TRT 1ml@200mg/ml every two weeks, I inject weekly at a .5cc each Sunday,. Would I need to inject more than the ammount I'm using to achieve a true dosage of 200mgs from my Test-Cyp?
Thanks,
CR

http://www.timinvermont.com/fitness/ester.htm
There is however one way that we can say an ester does technically effect potency; it is calculated in the steroid weight. The heavier the ester chain, the greater is its percentage of the total weight. In the case of testosterone enanthate for example, 250mg of esterified steroid (testosterone enanthate) is equal to only 180mg of free testosterone. 70mgs out of each 250mg injection is the weight of the ester. If we wanted to be really picky, we could consider enanthate slightly MORE potent than cypionate (I know this goes against popular thinking) as its ester chain contains one less carbon atom (therefore taking up a slightly smaller percentage of total weight). Propionate would of course come out on top of the three, releasing a measurable (but not significant) amount more testosterone per injection than cypionate or enanthate.

[Phate]

thats a good question, from a chemistry stand point when you inject 100mg of test cyp you get 69.90mg of testosterone and the other 20.10mg is the ester

bump for a vet/mod

[ottomaddox]

Continued from article above.^^^ I hate talking with my doctor and knowing more about a subject than he does. I wonder what he'll say when I bring up this point.

There is however one way that we can say an ester does technically effect potency; it is calculated in the steroid weight. The heavier the ester chain, the greater is its percentage of the total weight. If we wanted to be really picky, we could consider enanthate slightly MORE potent than cypionate (I know this goes against popular thinking) as its ester chain contains one less carbon atom (therefore taking up a slightly smaller percentage of total weight). Propionate would of course come out on top of the three, releasing a measurable (but not significant) amount more testosterone per injection than cypionate or enanthate.

According to this equasion I would have to inject about 287mg's of Test-Cyp to actually get a true 200mg's of Testosterone. While in my reality I'm injecting a total of 400mgs of Test-Cyp per month but only really getting 280mgs.

thats a good question, from a chemistry stand point when you inject 100mg of test cyp you get 69.90mg of testosterone and the other 20.10mg is the ester

bump for a vet/mod

[im83931]

I have never calculted the difference. I run it at 500 / wk. I got great results

[ottomaddox]

That's great running at 500mg/week, but I'm on TRT and don't have the ability to run those kind of doses right now.

I have never calculted the difference. I run it at 500 / wk. I got great results

[Phate]

i'm not really understanding your question, could you restate it. if you want calculations done with send me how many mgs of free test you want to run and i'll calculate it for you with molecular weight, ester weight, etc. shown so you can see exactly all the calculations

[ecto9]

I would think an Endo would base your adjusted TRT dose on periodic blood tests rather than the actual amount of test tied to a particular ester. But I see your point.

[ottomaddox]

Unfortunately I'm still being seen by my General Practioner doctor. I just start with test-cyp on mid March around the 12th. My starting blood level for total test was 97. This is why I'm concearned with the ammount of total testosterone as opposed to testosterone + an ester. My next blood work is on the 16th of April. I hope my testosterone comes up a little, but I'm not expecting miracles. What the hell is 400mgs of test cyp going to do to someone with a sub-par testosterone level of 97 over the course of 1 month?

I would think an Endo would base your adjusted TRT dose on periodic blood tests rather than the actual amount of test tied to a particular ester. But I see your point.