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Advanced Workshop

Las Vegas, NV: February 9-11, 2018

Early Bird Discount: Save $50

Interested in gaining a deeper understanding of how hormone and neurotransmitter imbalances are affecting your patient’s health? Register today for the Labrix Advanced Workshop to lock in your early bird discount price of $229, a savings of $50! Includes a Free NeuroAdrenal Panel (Value $215).


Core Training

Core Training is designed for practitioners who are new to the field of neuroendrocrine testing and optimization, including BHRT, or are new to using Labrix. Registration for next year's core events will be made available soon. Click here for more information.


Wellness Wednesday

Webinar Series

Adrenal Function & Dysfunction

December 6, 2017

Join Labrix clinical staff and special guests on the first Wednesday of every month at 9:30 AM and 12:00 PM PST. This free, live webinar series will cover a variety of neuroendocrine topics that will enhance your knowledge, with clinically applicable testing and treatment considerations.


Boston, MA: November 9-12, 2017

Come visit the Labrix booth at the International Lyme and Associated Diseases Society Conference in Boston, MA, this weekend.



Greenwood Village, CO: November 11, 2017

Labrix co-founder and Medical Director, Dr. Jay Mead, will be speaking at this exciting Colorado Association of Naturopathic Doctors Conference this weekend.


PracticalCME Webinar

Webinar Series

Choose from two LIVE Online Training Webinars with world-class hormone and neurotransmitter expert Gregory Zengo, MD. These full-day courses include up to 8 hours of CME credit and up to 6 months of private consultations with Dr. Zengo. 

Bioidentical Hormone Training Course 

Covers how to accurately test Male hormones, Female hormones, Adrenal function, Thyroid function and treat the most common imbalances including prescribing Bio-Identical Hormones, treating adrenal fatigue, menopause and andropause. The course even includes hands on tips for integrating BHRT into your practice with customizable office forms and advertising materials


Enhancing Testosterone without Testosterone


Published on 11/8/17

Testosterone is an essential hormone for men. It helps to regulate libido, bone mass, fat distribution, muscle mass and strength, and the production of sperm. As men age, they often produce less testosterone. When testosterone hormone therapy is unavailable or inappropriate for a particular patient, there are non-hormonal ways to boost testosterone secretion.


Stress Relief

  • Studies have shown that minimal hormone concentrations of testosterone in mice corresponded to high levels of anxiety.
  • Another study found that stressful conditions reduced testosterone levels in normal subjects.
  • It is important to identify and relieve daily sources of stress in order to maximize the body’s ability to produce testosterone and retard the process of andropause.
  • Address sub-optimal/low cortisol levels when warranted.


  • Sleep duration is associated with androgen concentrations in men.
  • A good night’s sleep and good sleep hygiene may be an important adjunct modality


  • Research has shown that exercise is an effective way to maintain testosterone levels.
  • Slow movement exercises significantly raises the concentrations of plasma epinephrine, serum growth hormone, and free testosterone.
  • Short-term, moderate intensity and low volume endurance training can significantly increase testosterone concentration in previously untrained men.
  • Weight resistance exercises build muscle mass which boosts testosterone levels.

Herbs and Nutrient Support


  • Required by the pituitary to release luteinizing hormone which stimulates the testes to produce testosterone
  • Zinc deficiency upregulates the aromatase enzyme. Zinc helps to suppress aromatase and prevent conversion of testosterone to estradiol

Tribulus terrestris

  • Steroid saponins extracted from tribulus terrestris were shown to stimulate sperm production and improved sperm viability in rats
  • A tribulus-containing supplement resulted in significantly increased serum levels of androstenedione, free testosterone, estradiol and DHT

Epimedium grandiflorum

  • Epimedium, aka “Horny goat weed”, includes several flavenoids that act as aromatase inhibitors as well as glycosides that stimulate testosterone production.
  • Epimedium may also block calcium channels causing vasodilation which can enhance erections as well as increase testosterone production.

Saw Palmetto

  • Saw palmetto has been shown to inhibit 5-α-reductase activity on testosterone in vitro, thereby preventing the conversion of testosterone to dihydrotestosterone (DHT)
  • May act to increase the metabolism and excretion of DHT through inhibition of cellular and nuclear receptor binding
  • Shown to be as effective as finasteride (Proscar) without the loss of libido as a side effect

Stinging Nettle Root

  • Displaces testosterone from SHBG binding sites, rendering more free (bioavailable) hormone
  • Works to inhibit aromatase activity, preventing testosterone from converting to estrogen
  • Interferes SHBG binding with receptors in the prostate that activate androgen receptors

DIM/Indole-3-carbinol (I3C)

  • These are compounds found in cruciferous vegetables.
  • I3C converts into DIM in the stomach if there is sufficient acidity
  • DIM blocks aromatization of testosterone into estrogen; thus, enhances testosterone levels. DIM also promotes healthy metabolism of estrogen, treating estrogen dominance

Chrysin, Luteolin, myricetin, and resveratrol

  • Help to block aromatase (the enzyme that converts testosterone into estradiol).

Hormone Supplementation


  • DHEA is a precursor to testosterone (and also to estrogen) in the hormone cascade
  • DHEA supplementation can be an effective way to raise testosterone levels in hypoandrogenic men, but because it can also raise estradiol levels, patients will need to be monitored with repeat testing.


  • Progesterone can work to block the conversion of testosterone to DHT, and in doing so preserves testosterone levels.


Khonicheva NM, et al. Blood testosterone in rats: correlation of the level of individual anxiety and its impairment after "death threat". Neurosci Behav Physiol. 2008; 38: 985-9.

Spivak B, et al. Plasma testosterone levels in patients with combat-related posttraumatic stress disorder. Neuropsychobiology. 2003; 47: 57-60.

Goh VH, Tong TY. Sleep, Sex Steroid Hormones, Sexual Activities, and Aging in Asian Men. J Androl. 2009 Aug 14.

Reduction in circulating testosterone relates to exercise capacity in men with chronic heart failure. J Card Fail. 2009 Jun;15(5):442-50. Epub 2009 Feb 10.

Endurance training of moderate intensity increases testosterone concentration in young, healthy men. Int J Sports Med. 2009 Jul;30(7):489-95. Epub 2009 Mar 19.

Om A, Chung K. Dietary zinc deficiency alters 5 alpha-reduction and aromatization of testosterone and androgen and estrogen in rat liver. J Nutrition. 1996; 126: 842-48. 

Kumar N, et al. Effect of different levels and sources of zinc supplementation on quantitative and qualitative semen attributes and serum testosterone level in crossbred cattle (Bos indicus x Bos taurus) bulls. Reprod Nutr Dev. 2006; 46: 663-75.

Zarkova S. [Steroid saponins of Tribulus terrestris L. have a stimulant effect on the sexual function]. Rev Port Ciencias Vet. 1984; 79: 117-126

Wu H, et al. Chemical and pharmacological investigations of Epimedium species: a survey. Prog Drug Res. 2003; 60: 1-57.

Kuang AK, et al. Effects of yang-restoring herb medicines on the levels of plasma corticosterone, testosterone and triiodothyronine. Zhong Xi Yi Jie He Za Zhi. 1989; 9: 737-8, 710.

Effects of the lipidosterolic extract of Serenoa repens (Permixon) on human prostatic cell lines. Prostate. 1996; 29: 219-30.

Comparison of finasteride (Proscar), a 5 alpha reductase inhibitor, and various commercial plant extracts in in vitro and in vivo 5 alpha reductase inhibition. Zhong Xi Yi Jie He Za Zhi. 1989; 9: 737-8.

Rhodes L, et al. Comparison of finasteride (Proscar), a 5 alpha reductase inhibitor, and various commercial plant extracts in in vitro and in vivo 5 alpha reductase inhibition. Prostate. 2006; 22: 43-51.

Koch E. Extracts from fruits of saw palmetto (Sabal serrulata) and roots of stinging nettle (Urtica dioica): viable alternatives in the medical treatment of benign prostatic hyperplasia and associated lower urinary tracts symptoms. Planta Med. 2001; 67: 489-500.

Chang YC, et al. Cytostatic and antiestrogenic effects of 2-(indol-3-ylmethyl)-3,3'-diindolylmethane, a major in vivo product of dietary indole-3-carbinol. Biochem Pharmacol. 1999; 58: 825-34. 


Labrix Core Training

Join the hundreds of practitioners who have attended Labrix live training events and learn more about these exciting opportunities directly from a Labrix attendee and Dr. Jay Mead, Medical Director and co-founder of Labrix.