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  #1  
Old 09-23-2018, 05:34 PM
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Percentage of actual a/s your getting once injected

ESTROGEN GUY
VET



QUESTIONABLE INFO ON HALF LIFE ONCE INJECTED?

None of the information on this here is guaranteed to be accurate. Use at your own risk.
The formula used for calculating the rate of compound release at a given day t is:
λ * N(t)
Where λ is the decay constant equal to ln(2)/h, h being the half life of the compound given in days; and N(t) is the half-life equation given by:
N(t) = n * e^(-t/λ)
Where n is the original dose of the compound in mg and t is given in days.
Terminal Half-lives
Testosterone Propionate: 0.8 days
Testosterone Phenylpropionate: 1.5 days
Testosterone Isocaproate: 4.0 days
Testosterone Enanthate: 4.5 days
Testosterone Cypionate: 5.0 days
Testosterone Decanoate: 7.5 days
Testosterone Undecanoate: 20.9 days
Trenbolone Acetate: 1.0 days
Trenbolone Enanthate: 4.5 days
Masteron Propionate: 0.8 days
Masteron Enanthate: 4.5 days
Nandrolone Phenylpropionate: 1.5 days
Nandrolone Decanoate: 7.5 days
Equipoise: 14.0 days
Primobolan Oral: 5 hours
Primobolan Injectable: 4.5 days
Halotestin: 7 hours
Anadrol: 14 hours
Dianabol: 5 hours
Turinabol: 16 hours
Winstrol Oral: 8 hours
Winstrol Injectable: 1.0 days
Anavar: 10 hours
Superdrol: 10 hours
These half-lives are approximations, and may vary slightly depending on injection site, carrier oil, and other factors.
Note: A different list of half-lives is often copy and pasted on various sites, claiming that, for example, the half-life for the propionate ester is 4.5 days and that the half-life for the enanthate ester is 10.5 days. This list is incorrect, and is the result of flawed calculations many years ago. See the "References" section for more information.
Active Dose
Injectable steroids are typically bound by esters, which comprise a portion of the steroid's weight. Because of this, 100mg of, for example, testosterone enanthate does not equate to 100mg of pure testosterone. In this case, there is only 70mg of testosterone being injected, and the remaining 30mg is the enanthate ester. This is taken into account when plotting cycles on this site, as different esters have different weights. Listed below is the percentages of the actual hormones for different steroid and ester combinations:
Testosterone Propionate: 80%
Testosterone Phenylpropionate: 66%
Testosterone Isocaproate: 72%
Testosterone Enanthate: 70%
Testosterone Cypionate: 69%
Testosterone Decanoate: 62%
Testosterone Undecanoate: 61%
Trenbolone Acetate: 87%
Trenbolone Enanthate: 70%
Masteron Propionate: 80%
Masteron Enanthate: 70%
Nandrolone Phenylpropionate: 67%
Nandrolone Decanoate: 64%
Equipoise: 61%
Primobolan Oral: 100%
Primobolan Injectable: 70%
Halotestin: 100%
Anadrol: 100%
Dianabol: 100%
Turinabol: 100%
Winstrol Oral: 100%
Winstrol Injectable: 87%
Anavar: 100%
Superdrol: 100%
References
Behre HM, Nieschlag E. 1998 Comparative pharmacokinetics of testosterone esters. In: Nieschlag E, Behre HM, eds. Testosterone: Action, Deficiency, Substitution, ed 2. Berlin: Springer-Verlag; 329–348.

EG
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  #2  
Old 01-28-2019, 09:32 PM
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Thank you for this.
Given this information, why then is it better to break up my (let's say) 500mg weekly dosage of Test E into two injections? Why not just inject the full 500mg once? Also, if I am only receiving 70% of the dosage should I increase by 30%?
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Old 01-29-2019, 07:04 AM
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Good info.
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Old 01-29-2019, 11:57 AM
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Quote:
Originally Posted by GetnStronger View Post
Thank you for this.
Given this information, why then is it better to break up my (let's say) 500mg weekly dosage of Test E into two injections? Why not just inject the full 500mg once? Also, if I am only receiving 70% of the dosage should I increase by 30%?
I would break it up to avoid peaks and valley's in your level, injecting only once in seven days will give you peaks and valleys in your numbers which can be made much steadier by splitting the dosing.... just my 2 cents

Hypothetically speaking
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Old 01-29-2019, 12:59 PM
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Quote:
Originally Posted by GetnStronger View Post
Thank you for this.
Given this information, why then is it better to break up my (let's say) 500mg weekly dosage of Test E into two injections? Why not just inject the full 500mg once? Also, if I am only receiving 70% of the dosage should I increase by 30%?
Study your half lives of the gear and base your injection schedule on that to keep your blood levels as stable as you can.
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Old 01-30-2019, 09:23 PM
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Thank you, gentlemen.

What about my other question...(hypothetically) should there be an increase by 30% given the information above, that is to say, Test E with a 70% absorbtion rate?
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Old 01-31-2019, 07:10 AM
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Quote:
Originally Posted by GetnStronger View Post
Thank you, gentlemen.

What about my other question...(hypothetically) should there be an increase by 30% given the information above, that is to say, Test E with a 70% absorbtion rate?
If you are happy with the effect no need. It is about the size of the ester attached to the test.

So the cyp ester is bigger than the prop ester so you essentially get more test the smaller the ester, BUT the smaller the ester the shorter the half life. So undeconate is a very large ester that takes up about 39% of the volume of the test and has a 20+ half life where as test base (No ester) is 100% test but has a very short half life.

If you are happy with your results I would not change a thing. Also think overlap. So the cyp half life is long enough where you probably have more than 500mg of test active all the time once you have maxed out saturation (I use that word loosely)

Overlap: this is a real dumb explanation but after a few week and you reach "saturation" you you still have active test in your body when you shoot the next "500mg" so you probably are at 500+ mg for the duration of your cycle.

I am way sleepy and just started my coffee, please forgive me if I am rambling and not making sense.
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