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I take undecanoate and think it's massively superior. I skimmed over what you wrote, and just comparing your experience to mine:

- Far too frequent. Undecanoate half-life is 15-35 days depending. T should be dosed at 1/2-1 of the half-life. I get away w/ once every 2 weeks, which happens to be the right amount to throw in an insulin pin.
- You could try lowering your dose 10-20%. A rule of thumb from the regression equations from the studies online is that a dose of C/E will put your AVERAGE T at 8-9x the weekly dose. 100 mg/week for 800-900 total T avg. Will vary greatly each week. Given the higher ester weight of Und, it's probably ~7-8x, which is right were your results are. It'll be easier to see this w/ the longer ester. You're on ~13 mg/day free T, which is an amount rarely achieved by natural adult males. A bit less would put you ~1,000 and might lower E a bit, which could possibly do what you want.
- If this doesn't work then it's probably something else, assuming anything is in fact off. From years of being on these various boards, probably 70% of the postings are people tinkering w/ a single hormone while missing other things wrong (insulin resistance, thyroid, vit D, stress, inadequate electrolyte intake, zinc/iron/copper deficiencies, no sleep, etc.). Just my .02 there.

<blockquote data-quote="CaptianCurious" data-source="post: 189431" data-attributes="member: 38740">I take undecanoate and think it&#039;s massively superior.&nbsp;&nbsp; I skimmed over what you wrote, and just comparing your experience to mine: - Far too frequent.&nbsp; Undecanoate half-life is 15-35 days depending.&nbsp; T should be dosed at 1/2-1 of the half-life.&nbsp; I get away w/ once every 2 weeks, which happens to be the right amount to throw in an insulin pin.&nbsp;&nbsp; - You could try lowering your dose 10-20%.&nbsp; A rule of thumb from the regression equations from the studies online is that a dose of C/E will put your AVERAGE T at 8-9x the weekly dose.&nbsp; 100 mg/week for 800-900 total T avg. Will vary greatly each week. Given the higher ester weight of Und, it&#039;s probably ~7-8x, which is right were your results are.&nbsp; It&#039;ll be easier to see this w/ the longer ester.&nbsp; You&#039;re on ~13 mg/day free T, which is an amount rarely achieved by natural adult males.&nbsp; A bit less would put you ~1,000 and might lower E a bit, which could possibly do what you want. - If this doesn&#039;t work then it&#039;s probably something else, assuming anything is in fact off.&nbsp; From years of being on these various boards, probably 70% of the postings are people tinkering w/ a single hormone while missing other things wrong (insulin resistance, thyroid, vit D, stress, inadequate electrolyte intake, zinc/iron/copper deficiencies, no sleep, etc.).&nbsp; Just my .02 there.</blockquote>

[QUOTE="CaptianCurious, post: 189431, member: 38740"] I take undecanoate and think it's massively superior. I skimmed over what you wrote, and just comparing your experience to mine: - Far too frequent. Undecanoate half-life is 15-35 days depending. T should be dosed at 1/2-1 of the half-life. I get away w/ once every 2 weeks, which happens to be the right amount to throw in an insulin pin. - You could try lowering your dose 10-20%. A rule of thumb from the regression equations from the studies online is that a dose of C/E will put your AVERAGE T at 8-9x the weekly dose. 100 mg/week for 800-900 total T avg. Will vary greatly each week. Given the higher ester weight of Und, it's probably ~7-8x, which is right were your results are. It'll be easier to see this w/ the longer ester. You're on ~13 mg/day free T, which is an amount rarely achieved by natural adult males. A bit less would put you ~1,000 and might lower E a bit, which could possibly do what you want. - If this doesn't work then it's probably something else, assuming anything is in fact off. From years of being on these various boards, probably 70% of the postings are people tinkering w/ a single hormone while missing other things wrong (insulin resistance, thyroid, vit D, stress, inadequate electrolyte intake, zinc/iron/copper deficiencies, no sleep, etc.). Just my .02 there. [/QUOTE]

Verification

TRT Hormone Predictor Widget

Understanding Your Hormones

Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

DHT

Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.

Free Testosterone

The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038