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injection frequency and esters explained

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  • injection frequency and esters explained

    I wanted to write this as an expansion to DC’s comments on why more frequent shots are better for those of you in Europe and Mexico. I figured I would put the science in English so we could understand how its effects apply to the real world.

    First off, I want to give a little lesson on esters and how they affect the hormone itself. We have to understand that the longer acting esters have longer carbon chains. For example, Decanoate as we all know, is a long acting ester which has 10 carbons. Acetate on the other hand, a shorter acting ester has only 2 carbons. Now common sense and physics tells us the larger the ester is the more weight it takes up in the compound when mixed with the hormone and put into a solution. For example, it takes 461 mg of a hormone with a propionate ester attached to equal 288mg of the base hormone without an ester. This means the shorter the ester, the more of the actual hormone you will receive on a milligram per milligram basis. This would mean in the real world that higher doses of long acting esters would be required to get the same effective amount of hormone found in the shorter esters attached to the hormones.

    1000 mg of hormone A with a Propionate ester only effectively yields 625 mg of raw the hormone

    Now we will talk about ester half lives and frequency of injections. First off what is a half life? A half life is one half of the time it takes for the ester to be completely metabolized by the body. It is at this time that it is estimated that hormone attached to the ester is at it’s peak concentrating in its free form in the body.

    Approximate Half Lives of Esters
    Prop = 4 days
    Acetate = 2 days
    Enanthate = 4 days
    Cyp = 8 days
    Decanoate = 10 days

    With this said we can see that it takes deca roughly 10 days to reach it’s peak concentration in the body and 20 days to clear it. Well you think by seeing this you can take a shot once a week or even more with no problems. As common sense would tell us the levels of hormone gradually increase in the body until it has reached it’s half life and then begins to decline. With this said we can now see that once a week doses would lead us to peaks and dips in the level of the hormone. Visualize the half life like a curve on a graph when you think of the levels of the hormone in your body. The more frequent the injections are, the more often your body will have stable and peak levels of the hormone present.

    With shorter acting esters it becomes easier to control the level of the hormone in the body, not to mention you receive a more effective dose of the hormone. With the shorter esters it is much easier to predict when the hormone is at it’s peak and when to time the injections. We can obviously see the advantage of using shorter acting esters due to these facts.

    This a a quote from Anabolics 2004 “Consistent blood levels probably lead to the greatest efficiency of use for the drug and the highest anabolic/androgenic ratio.” So we can see that more frequent injections are much better for gains.

    I hope this clears up some things.
    I do not condone the use of anabolic steroids or any illegal drug, any information discussed is for educational purposes only.

    "Every goal has a price if you are willing to pay it"

  • #2
    Cool stuff. I am a lifetime natural, but it is always nice to have more knowledge for in the future when I decide to touch the juice.

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    • #3
      I always thought enanthate and cyp were very close in regards to length of carbon chains (enan 7 carbons, cyp 8 carbons)

      Am I wrong about this??
      [email protected] http://www.proactivehealthnet.com

      " We know that to err is human, but the HIV/AIDS hypothesis is one hell of a mistake"
      Dr. Kary Mullis, Nobel Prize Winner in Chemistry for inventing the Polymerase Chain Reaction


      "The fact is that you can not start off with bad science and end up with good medicine"

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      • #4
        you are right they are 7 and 8 but their half lives are much different. Honestly, I can't tell you why but they are. I will do some research on it.
        I do not condone the use of anabolic steroids or any illegal drug, any information discussed is for educational purposes only.

        "Every goal has a price if you are willing to pay it"

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        • #5
          Thanks bro.....stuff like this is interesting to me. lol.
          [email protected] http://www.proactivehealthnet.com

          " We know that to err is human, but the HIV/AIDS hypothesis is one hell of a mistake"
          Dr. Kary Mullis, Nobel Prize Winner in Chemistry for inventing the Polymerase Chain Reaction


          "The fact is that you can not start off with bad science and end up with good medicine"

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          • #6
            Even though Enanthate is one less carbon atom than Cyp it has been seen to have the same peaks and drops in your system with no variations from both drugs, they are pretty much identical.

            They have the exact same make up, I think the major difference is that Enanthate having one less carbon it might cause it to last longer being that it is slower released than Cyp, but not by much.

            The peak of these two drugs seem to level off at day 2 and start to drop rapidly after that...
            "That damn log book"

            www.trueprotein.com Highest quality protein at the lowest price...

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            • #7
              So esther half life is different than a nuclear Half life? In your explination you say.

              First off what is a half life? A half life is one half of the time it takes for the ester to be completely metabolized by the body.

              I always thought it was a chemical half life. Which is the amount of time it takes for 1/2 of the Nuclear material to degrade. If you follow this out after 2 half lifes you would still have 1/4 of the material availible. After 3 1/8 do you see what I am saying? If not I can try and explain it different. And am I all wrong in comparing these?


              Log Book PIMP! It ain't a crime if it likes it!

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              • #8
                I am not sure on the exact details,,, I took my information from anabolics 2004. What I know is that Deca for example has a half life 10 days and it takes it roughly 20 days to be completely metabolized by the body. Hope this helps!!!
                I do not condone the use of anabolic steroids or any illegal drug, any information discussed is for educational purposes only.

                "Every goal has a price if you are willing to pay it"

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                • #9
                  bigpaul, Did you notice that on the half life of each chemical peaks out at half of the half life, if that made sense at all...
                  "That damn log book"

                  www.trueprotein.com Highest quality protein at the lowest price...

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                  • #10
                    It really doesn't make a practical difference-Except in timing of PCT when dropping from a ton of drugs. IE 2 grams-would make your time different than 1 gram.


                    Log Book PIMP! It ain't a crime if it likes it!

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                    • #11
                      Originally posted by In-Human
                      bigpaul, Did you notice that on the half life of each chemical peaks out at half of the half life, if that made sense at all...
                      lol,,, yea I dont think it is rocket science.
                      I do not condone the use of anabolic steroids or any illegal drug, any information discussed is for educational purposes only.

                      "Every goal has a price if you are willing to pay it"

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                      • #12
                        Bigp, curious why some of your listed half-lifes are so different from the lab tests I've seen. Here's a quick list I keep:

                        Formate 1.5 days
                        Acetate 3 days
                        Propionate 4.5 days
                        Phenylpropionate 4.5 days
                        Butyrate 6 days
                        Valerate 7.5 days
                        Hexanoate 9 days
                        Caproate 9 days
                        Isocaproate 9 days
                        Heptanoate 10.5 days
                        Enanthate 10.5 days
                        Octanoate 12 days
                        Cypionate 12 days
                        Nonanoate 13.5 days
                        Decanoate 15 days
                        Undecanoate 16.5 days

                        Enanthate is the one that struck me the most.

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                        • #13
                          Also, does it not make a difference what the parent compound is in determining the half-life? For example, Dazed has said that even though 1-testosterone cypionate is a "cyp" ester, it has a similar solubility to test-prop, and therefore a similiar half-life. Thoughts?

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                          • #14
                            I pulled this info from anabolics 2004,, ,fyi. What you may have is the total time it takes the ester to clear your system and not the time when the hormone maxes out in your blood (ie half life). Also in the book, Lewellyn noted that the half lives are estimates and can never be pinned down exactly due to different people metabolizing them differently.
                            I do not condone the use of anabolic steroids or any illegal drug, any information discussed is for educational purposes only.

                            "Every goal has a price if you are willing to pay it"

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