6 Clinical-Grade
Compounds. One Formula.
Every ingredient is a standardized, research-backed extract — dosed at the level used in human clinical studies. No proprietary blends. No hidden fillers. No under-dosed afterthoughts. Just the cleanest, most effective natural T-stack we could build.
KSM-66® Ashwagandha
The gold-standard Ashwagandha. KSM-66 is the world's most clinically studied extract — standardized for maximum withanolide content, the active compound behind its hormone-supporting effects.
- Clinically raises free testosterone
- Lowers cortisol & stress hormones
- Improves strength & recovery
D-Aspartic Acid (DAA)
A powerful amino acid that signals the brain to release luteinizing hormone — the hormone that tells your body to produce more testosterone. Dosed at the exact clinical level.
- Triggers natural T-production
- Enhances muscle strength & output
- Improves sperm quality
Tribulus Terrestris
Standardized to 90% steroidal saponins — the bioactive compounds behind Tribulus's centuries-old reputation for drive, libido, and athletic performance.
- Supports testosterone levels
- Boosts libido & drive
- Enhances athletic performance
Fenugreek Seed Extract
Not raw fenugreek powder — a concentrated extract standardized to 50% active saponins. These are the compounds responsible for Fenugreek's clinically-studied effect on free testosterone.
- Supports free testosterone
- Improves strength & output
- Maintains healthy cholesterol
Tongkat Ali 100:1
The strongest available concentration of Tongkat Ali. Clinically studied for testosterone support, cortisol reduction, and male vitality enhancement.
- Supports testosterone production
- Reduces cortisol levels
- Enhances male vitality
Nettle Root Extract
Standardized to 45% β-Sitosterol. Binds to SHBG so more of your testosterone stays free and bioavailable — working where it actually matters.
- Increases free testosterone
- Blocks SHBG binding
- Supports prostate health
Panax Ginseng Root
One of the most studied adaptogens in the world. Enhances physical performance, mental clarity, and sustained energy without the crash.
- Enhances physical performance
- Improves mental clarity
- Sustains energy levels
Magnesium Glycinate
The most absorbable form of magnesium. Supports muscle recovery, sleep quality, and over 300 enzymatic processes including testosterone production.
- Supports muscle recovery
- Improves sleep quality
- Aids testosterone production
Vitamin D3
The "sunshine vitamin" at the dose clinically linked to healthy testosterone. Essential for UK men — most are severely deficient, especially October through April.
- Supports healthy testosterone
- Strengthens immune system
- Improves mood & energy
Vitamin K2 (MK-7)
The essential D3 partner. Directs calcium to bones instead of arteries. MK-7 is the longest-acting form — one dose stays active for up to 72 hours.
- Essential D3 co-factor
- Supports bone density
- Protects cardiovascular health
Zinc Bisglycinate
The most bioavailable form of zinc. Directly involved in testosterone synthesis — deficiency is one of the most common causes of low T in men over 35.
- Direct T-synthesis support
- Strengthens immune function
- Promotes muscle recovery
Boron Citrate
The "hidden gem" mineral. Just 10mg has been shown to increase free testosterone by reducing SHBG binding — one of the most underrated ingredients in men's health.
- Increases free testosterone
- Reduces SHBG binding
- Supports bone strength
What Most Men Feel on the Full Stack
A realistic timeline of what most men feel when they run the full 90-day Testo Prime cycle.
The stack flood your bloodstream. Morning energy feels different. 3pm crash disappears. Sleep deepens.
Libido fully back. Workouts hit harder. Strength and stamina climbing week over week. Confidence building.
Leaner body composition. People start asking what you're doing differently. Peak strength, peak drive, peak focus.
T-production fully supported — safely. Not a temporary boost. This is your new baseline: the man you were meant to be.