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Testosterone half life table

Hi Vince, I made a spreadsheet to investigate half-lives of T variants, and concluded that I needed a double-dose up front, then match the dose timing with the half-life (e.g if HL is 4.5 days, inject every 4 (accumulate slightly) or 5 (decumulate slightly) days.
- JohnTaylorHK
- Post #45
- Dec 19, 2018
- Forum: Testosterone Basics & Questions
Testosterone half life table

No Nope, Enanthate is 4.5 days as per the insert in the box
- JohnTaylorHK
- Post #42
- Nov 3, 2018
- Forum: Testosterone Basics & Questions
One injection of Sustanon250 over three weeks graph (With bloodwork)

I understand the average male T level to be 270-1,070 ng/dl. So your starting levels were fine? Testosterone Levels by Age
- JohnTaylorHK
- Post #5
- Nov 3, 2018
- Forum: Testosterone Basics & Questions
The 12 Year-Old Study That Proves Testosterone Injections Every Two Weeks Fail

I have a regular dosage of 250mg TE every 5 days. I preload at the start of a cycle with a double dose. Attached is the analysis of expected levels given a 4.5 day half-life. I am concerned about the safety aspects, and generally do 3 months on, 1 month off. Any feedback please?
- JohnTaylorHK
- Post #15
- Nov 3, 2018
- Forum: Testosterone and Men's Health Articles

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