The Male Hormonal Stack: Fadogia, Cistanche, and TMG — What Each Does and Why the Order Matters

Testosterone declines at approximately 1–2% per year after the age of 30. By 45, many men have total testosterone levels 20–30% lower than their peak. The symptoms — reduced drive, declining muscle mass, increased central fat, lower libido, longer recovery from training, reduced cognitive sharpness — are often attributed to stress, poor sleep, or "just getting older." They are these things. They are also a reflection of a hormonal environment that has measurably changed.

The question is not whether to address it. It is how — and in what order.

The Three Compounds and What Each Targets

Fadogia Agrestis 500mg (20:1) — LH pathway stimulation

Fadogia Agrestis operates via the pituitary-gonadal axis, stimulating Luteinising Hormone (LH) production. LH is the body's own signal to the testes to produce testosterone. The approach is upstream — working with the body's hormonal signalling system rather than introducing exogenous hormones. The research base comes primarily from animal studies, which showed significant testosterone elevation. Human data is limited but the mechanism is well-understood. Read the full Fadogia explainer here.

Important: Fadogia is cycled. Eight to twelve weeks on, four weeks off. This is not optional — it is the protocol. The rest period allows the LH pathway to return to its own rhythm before the next cycle.

Cistanche 500mg (20:1) — the longevity layer

Cistanche Tubulosa works via a different mechanism to Fadogia — its echinacoside and acteoside content supports testosterone production via the HPG axis while simultaneously providing neuroprotective and anti-inflammatory effects that give it a broader longevity dimension. It is the compound that sits at the intersection of hormonal support and anti-ageing — relevant both for what it does to testosterone and for what it does to the cellular environment in which testosterone operates. Read the full Cistanche explainer here.

Unlike Fadogia, Cistanche does not require cycling. It can be taken continuously as the baseline of the stack.

TMG 600mg — the methylation foundation

TMG (Trimethylglycine) belongs in this stack for two reasons. First, healthy testosterone metabolism requires methyl donors — the process of converting testosterone and managing its metabolites draws on the methylation cycle. Second, if the stack includes NMN (which most men running a complete protocol do), TMG is non-negotiable to prevent methyl depletion. It is also independently associated with improvements in physical performance across multiple trials. Read the full TMG + NMN explainer here.

The Protocol in Practice

Morning, with water: Cistanche 500mg + TMG 600mg + Fadogia 500mg (during active cycle). These are taken together, and consistently. The stack has no meaningful interactions between the compounds — they operate on different mechanisms and complement rather than duplicate each other.

Add NMN 500mg to the morning protocol for the full longevity and energy layer. The TMG dose covers both the testosterone stack and the NMN methylation requirement simultaneously.

Run the full stack for twelve weeks before assessing hormonal changes. Testosterone is not a compound that shifts in days. Give the biology the time it requires. The 90-day rule applies here more than almost anywhere else.