HCG and Free Testosterone

There are number of disease states that can increase blood levels of SHBG and therefore lower free T levels.



1.Testicular cancer,

2.Breast cancer, fibrocystic breast disease,

3.Elevated estradiol levels,

4.Elevated thyroid levels,

5.Aging,

6.Extreme weight loss as in anorexia nervosa.

7.Pregnancy,

8.Estrogen containing birth control pills,

9.Diets low in protein. In elderly men ages 40 to 70 years. Increased SHBG leads to lower FT and increased risk for fragility, low bone density, fractures, anemia, decreased sexual function etc. [J Clin Endocrinol Metab. 2000 Jan; 85 (1) 293-6]

10.Certain meds such as the Dilantin (a phentyoin) drug class, which can produce increased activity of the enzyme for SHBG synthesis.

11.Liver chirrosis (fibrosis) occurs from scar tissue in the liver , usually formed from excess alcohol abuse or maybe other drugs or chemicals over time. Liver chirrosis is associated with increased SHBG,

12.Cigarettes smoking leads to increased SHBG,

13.Any compromise of liver detoxification such as alcohol abuse, certain meds, heavy metals etc can decrease liver capacity to excrete excess estrogens from the body,

14.Any estrogen use, maybe even the plant estrogens (phytoetrogens) can increase SHBG,

15.Increased conversion T to E (aromatization).
https://www.excelmale.com/forum/sho...adiol-and-Sex-Hormone-Binding-Globulin-in-Men
 
well. I am on TRT and HCG and have noticed a decline in free t percentage which is why I ask. Before I pull the plug on HCG I would like to know if anyone else has the same observations

That's more likely an SHBG issue than HCG, every man on TRT should be on HCG and Free T isn't one of those reasons.
 
Agree with Vince Carter! HCG will promote the testosterone and increase total serum levels (all depending on leydig function) ... Free testosterone will be factored at that point primarily by SHGB and somewhat by albumin.
 
I've been on 80mg Cyp x2 + 500U HCG x2 for about 10 weeks now (and was on 200mg biweekly for 4 weeks before that - was with a horrible urologist). Free went from 6.5 to 19.6 and SHBG has decreased from 80.2 to 62.4. Obviously I'm on the combo therapy, but I've been happy with the effects. (Total went from 498 to 1,383).
 
my levels actually went higher with HCG, free T was at 168 added HCG 100mcgs daily blood work showed free T at 278 way over the 250 max (for that lab any way)
 

hCG Mixing Calculator

HCG Mixing Protocol Calculator

TRT Hormone Predictor Widget

TRT Hormone Predictor

Predict estradiol, DHT, and free testosterone levels based on total testosterone

⚠️ Medical Disclaimer

This tool provides predictions based on statistical models and should NOT replace professional medical advice. Always consult with your healthcare provider before making any changes to your TRT protocol.

ℹ️ Input Parameters

Normal range: 300-1000 ng/dL

Predicted Hormone Levels

Enter your total testosterone value to see predictions

Results will appear here after calculation

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

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