Weight Loss
Tirzepatide / GLP-1
Men's Health
TRT & Testosterone ED Treatment Hair Restoration
Women's Health
HRT & Hormones Prescription Skincare Hair Restoration
Longevity
Peptide Protocols NAD+ Injections Sleep NOR Recovery
Our Physicians About ZENKAI Contact Patient Login Start Free Assessment
Men's Performance Program

Men's health.
Optimized.
Physician-prescribed.

ZENKAI Men prescribes testosterone replacement therapy, a 3-in-1 ED formula, and hair restoration — online, discreetly, with a licensed US physician review in 24 hours.

  • ✓Tirz + NAD+ + L-Carnitine + B12 — muscle and energy stack
  • ✓Sema + NAD+ + B12 — focus and mental acuity injection
  • ✓Tirz + NAD+ + B12 — weight and performance injection
  • ✓Sleep ODT — tirz + NAD+ + Magnesium + L-Theanine
  • ✓TRT available for qualifying patients
See If I Qualify — Free →
🔒 4-minute intake. If you don't qualify, you don't pay.
ZENKAI Men Program
Build Your Stack
Select your program
Full Stack Best Value
TRT + Performance + Hair — everything
$249
/mo
TRT Only
Testosterone replacement · injections or cream
$149
/mo
Performance Only
3-in-1 ED formula · sublingual · 15-min onset
$129
/mo
Hair Restoration
Finasteride + minoxidil clinical protocol
$89
/mo
Every plan includes
👨‍⚕️ Licensed physician review + prescription
📅 Monthly check-in + dose optimization
💬 24/7 medical support messaging
📦 Free discreet shipping, every order
No qualifying = no charge. Cancel anytime.
🔒
HIPAA
↩️
Cancel
TRT+
ED + Hair — all from one physician
15min
Performance formula onset time
4.9★
Men's program satisfaction rating
24hr
Physician review time
Treatment Protocols

Four compound stacks. One physician. One price.

Take one, two, or all three — your physician sees the full picture and optimizes everything together.

⚡
Testosterone Replacement
TRT Protocol
Restore testosterone to optimal levels. Improved energy, body composition, mental clarity, libido, and muscle recovery. Monthly lab reviews and dose optimization included.
Testosterone CypionateTopical CreamHCG (optional)
🎯
Performance Formula
3-in-1 Sublingual
Tadalafil (36-hr window) + sildenafil (peak strength) + apomorphine (desire activation). Fast-absorbing sublingual drop. Works in 15 minutes. No food restrictions. No timing anxiety.
TadalafilSildenafilApomorphine
💪
Hair Restoration
Clinical Regrowth Protocol
Finasteride (oral DHT blocker) + minoxidil 5% (topical follicle stimulation). The most evidence-backed combination for male pattern hair loss, physician-monitored monthly.
Finasteride 1mgMinoxidil 5%Biotin (optional)
Patient Reviews

Physician-led men’s health.

A US-licensed physician reviews your intake and labs before prescribing, then adjusts your protocol based on follow-up results.

ZENKAI care team
T: 280 → 740 ng/dL

Every protocol is managed end to end — ongoing monitoring and dose adjustments, not a one-time prescription.

ZENKAI care team
Performance Formula

Unlimited secure messaging with your care team, transparent pricing, and discreet delivery.

ZENKAI care team
Full Stack — 6 months
FAQ

Common questions.

Is TRT safe? ▾
Testosterone replacement therapy is one of the most well-studied treatments in men's health. It is FDA-approved and has been prescribed safely for decades. Your ZENKAI physician reviews your labs, symptoms, and history before prescribing — and monitors your levels monthly to keep you in the optimal range.
How is the performance formula different from Viagra or Cialis alone? ▾
Single-ingredient ED medications (Viagra = sildenafil, Cialis = tadalafil) address blood flow only. Our 3-in-1 formula adds apomorphine, which activates dopamine receptors to enhance desire and neurological arousal — the "wanting" piece. It also combines rapid onset (vardenafil) with long duration (tadalafil) in one sublingual dose.
Do I need labs to start TRT? ▾
Your physician will review your intake questionnaire and symptoms. If they prescribe TRT, they will typically order or review recent lab work (testosterone levels, CBC, PSA). ZENKAI can coordinate lab orders through partner labs, or you can upload recent results from your own physician.
How quickly does TRT work? ▾
Most men notice improved energy and mood within 3–6 weeks. Libido typically improves within 4–6 weeks. Body composition changes (increased muscle, decreased fat) develop over 3–6 months with consistent treatment. Your physician tracks your progress monthly and adjusts dosing accordingly.
Is this confidential? ▾
Completely. Your intake, physician consultations, and prescriptions are HIPAA-protected. Your medication ships in plain, unmarked packaging with no indication of the contents. No one will know what you ordered.
Testosterone Replacement Therapy (TRT) is also available for qualifying patients. TRT requires additional lab work and clinical review. Ask your physician during your assessment if TRT may be appropriate for you.
Get Started

Your 4-minute assessment starts here.

Licensed physician review in 24 hours. If you don't qualify, you don't pay.

Start My Free Assessment →
Licensed US Physicians
Discreet Shipping
No Insurance Needed
Cancel Anytime

Complete your protocol

Patients often pair this with

ED TreatmentMany men on TRT also manage performance — available in one protocol.Hair RestorationPair hormone care with physician-managed hair restoration.Longevity & PeptidesAdd peptides and NAD+ to support recovery and healthspan.
⚡

ZENKAI Health Coach

AI · Available 24/7

HIPAA-safe · Not medical advice