HOME/BIOMARKERS/TOTAL T
hormonal · ng/dL

Total Testosterone

The primary male sex hormone. Total includes both bound and free fractions.

DIRECTION
↑ higher is better
NORMAL RANGE
300–1000 ng/dL (adult male)
MECHANISMS
4

What
moves it.

These biological pathways influence Total Testosterone. Click any to see what affects it.

emerging
GnRH/LH
GnRH → LH Signaling

Hypothalamus releases GnRH → pituitary releases LH → Leydig cells produce testosterone.

supported
Aromatase
Aromatase Inhibition

Aromatase converts testosterone into estradiol. Inhibiting it keeps more testosterone as testosterone.

supported
Leydig Cells
Leydig Cell Function

Leydig cells are the testosterone factories in the testes.

supported
Cortisol
Cortisol Modulation

Chronic cortisol elevation impairs recovery, sleep, and testosterone. Adaptogens may modulate it.

What
affects it.

adaptogen
Rhodiola Rosea

Adaptogen for stress and fatigue. May improve mood and endurance.

supported$$
botanical
Cistanche tubulosa

Raised LH and testosterone in rodent studies via GnRH signaling. No human testosterone RCT.

emerging$$
botanical
Eurycoma longifolia (Tongkat Ali)

Human RCTs show testosterone increase in hypogonadal men [citation:37]. Aromatase inhibition shown in vitro.

supported$$
adaptogen
Ashwagandha (Withania somnifera)

Reduces cortisol in multiple RCTs. May improve testosterone and stress resilience.

supported$$
botanical
Fenugreek

Contains 4-hydroxyisoleucine, which stimulates insulin release. Studied for testosterone and creatine uptake.

supported$$
botanical
Shilajit (PrimaVie)

Fulvic acid mineral complex. Possibly effective for testosterone in hypogonadal men [citation:31].

supported$$$
mineral
Zinc

Essential for testosterone synthesis. Supplementation helps only if deficient.

established$
vitamin
Vitamin D3 (Cholecalciferol)

Hormone-like vitamin. VDR receptors present in Leydig cells. Supplementation matters mainly in deficiency.

established$
mushroom
Reishi (Ganoderma lucidum)

Adaptogenic mushroom. Studied for immune function and stress.

supported$$
adaptogen
Schisandra Chinensis

Adaptogen studied for liver protection and stress resilience.

supported$$