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Testosterone 400 Genetix Pharma

Batch COA on requestPage checked Oct 2026

Genetix PharmaInjectables SteroidsIn stock

Testosterone 400 Genetix Pharma

Testosterone blend · 10 ml vial

5.019 reviews
$120.00CAD$0.03 per mg

Buy Testosterone 400 Genetix Pharma (Testosterone Blend 400mg/ml) online in Canada. Lab-tested injectable steroid delivering high-concentration testosterone for maximum muscle growth, strength, and performance. Order from SteroidsCanada.is for guaranteed quality, discreet packaging, and fast Canadian shipping.

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Needed with this: Syringes Pack of 10 - 25 Gauge - 3mlUse a new sterile syringe for every injection. $18Add

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Complete your cycle

What most customers add with this:

Arimidex Genetix Pharma$120.00 · Keeps estrogen in check
Add
HCG 5000 IU$108.00 · For after your cycle
Add

You will need

Syringes Pack of 10 - 25 Gauge - 3ml$18 · A new sterile syringe for every injectionAdd

It ships by Canada Post Xpresspost with tracking.

  • Ships from inside Canada
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Spec sheetTestosterone blendGenetix Pharma · Testosterone 400 Genetix Pharma
Compound
Testosterone blend
Strength
400 mg/ml
Pack
10 ml vial
Total per order
4,000 mg
Form
Injectable (oil)
Value
$0.03 per mg

01The basics

What Testosterone 400 by Genetix Pharma is

Genetix Pharma’s Testosterone 400 is an injectable oil that combines testosterone enanthate (200 mg/ml) and testosterone cypionate (200 mg/ml), 400 mg of testosterone per ml in total. Each 10 ml vial holds 4,000 mg.

At 400 mg/ml, it’s a concentrated option for people using higher doses who want less oil per injection. There’s no pharmaceutical version of this blend, so everything on this page is based on what’s known about testosterone itself.

02Molecule

The molecule

What is actually in the vial or tablet, from the public chemistry databases of the U.S. National Library of Medicine.

Structure of Testosterone enanthate

Testosterone enanthate

C26H40O3

Molar mass
400.6 g/mol
CAS
315-37-7
PubChem
9416
Structure of Testosterone cypionate

Testosterone cypionate

C27H40O3

Molar mass
412.6 g/mol
CAS
58-20-8
PubChem
441404

03How it works

How it works

Both esters break off in the body to leave testosterone, which binds to androgen receptors and increases protein synthesis, nitrogen retention and red blood cell production.

  • Timing: enanthate (half-life about 4–5 days) and cypionate (about 5–8 days) release at a similar pace, so the blend is injected once or twice a week, like either ester alone.
  • Conversion: as with any testosterone, part of it becomes estradiol (driving water retention and gynecomastia risk) and part becomes DHT (acne, oily skin and hair loss in men prone to it).
  • Concentration: more testosterone per ml generally needs more solvent, which can make injections sting more than standard 250 mg/ml oils.

04Clinical reference

Dosing information

Clinical reference. For men with low testosterone, medical guidelines suggest 75–100 mg a week or 150–200 mg every two weeks. Bulking doses are typically far higher, and every risk on this page goes up with them.

Talk to a doctor before use, and get bloodwork before, during and after.

Measuring at 400 mg/ml.

  • 0.25 ml = 100 mg
  • 0.5 ml = 200 mg
  • 0.75 ml = 300 mg
  • 1 ml = 400 mg

A 1 ml syringe with fine markings makes small volumes easier to measure.

05Measure it

Measure it

Type in the amount your prescriber gave you, or the one you are working from, and this turns it into what to draw up or count out from this exact product. It only does the arithmetic; it never suggests an amount.

Result

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Enter your amount

 
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Arithmetic from the strength printed on this product. Always check your own vial or bottle, follow your prescriber, and ask a pharmacist to show you how to measure if you are unsure.

06Injection sites

Where it is injected

Testosterone 400 is an oil, so it goes deep into a large muscle with a regular needle: never just under the skin and never into a vein. These are the muscles standard nursing guidance uses.

Common siteOlder site, extra careMuscle drawing: OpenStax & Tomáš Kebert, umimeto.org, CC BY-SA 4.0, recoloured.
1Hip (ventrogluteal)Gluteus medius and minimusIM
Volume per siteUp to 3 mlNeedle1–1.5 in, 22–25G
  1. Lie on your side or stand. Put the heel of your hand on the bony knob at the top of the thigh (greater trochanter): left hand on the right hip, right hand on the left.
  2. Point your index finger at the bony front of the hip (anterior superior iliac spine) and fan your middle finger back along the hip crest to make a V.
  3. The site is the middle of that V.

Why it is used. Many nursing programs now teach it first. The muscle is thick, the fat over it is thin and fairly even, and no large nerve or vessel crosses the target area.

Careful. The landmarks take a few tries to find on your own body. A mirror or a helper makes the first ones easier.

Locating the hip site on a real personConcordia University Ann Arbor, School of NursingSection 0:00–0:58 of their video · YouTube

2Outer thigh (vastus lateralis)Vastus lateralis, quadricepsIM
Volume per siteUp to 3 mlNeedle1–1.5 in, 22–25G
  1. Sit down. Find the bony knob at the top of the thigh and the top of the kneecap.
  2. Divide the distance between them into three equal parts.
  3. Use the middle part, on the outer front of the thigh, roughly where a trouser seam would run.

Why it is used. The easiest large muscle to see and reach on yourself, with plenty of muscle to work with.

Careful. Stay on the outer side. The femoral artery, vein and nerve run along the inner front of the thigh. It can feel stiff for a day or two.

Outer thigh: the landmarks, step by stepDr. Nabil Ebraheim, MD, Orthopaedic surgeon, University of ToledoSection 0:06–1:05 of their video · YouTube

3Shoulder (deltoid)DeltoidIM
Volume per siteUp to 1 mlNeedle1 in, 23–25G
  1. Find the bony ridge at the top of the shoulder (acromion).
  2. Measure two to three finger-widths straight down from it.
  3. Inject into the thickest part of the muscle on the outer side of the arm, well above the armpit line.

Why it is used. Quick to reach and the usual place for vaccines. Good for small volumes.

Careful. A small muscle: larger amounts hurt and can leak back out. Going too low on the arm risks the axillary and radial nerves.

Shoulder injection and the nerves to stay clear ofDr. Nabil Ebraheim, MD, Orthopaedic surgeon, University of ToledoSection 0:06–3:16 of their video · YouTube

!Upper buttock (dorsogluteal)Gluteus maximusIM
Volume per siteUp to 3 mlNeedle1.5 in
  1. Picture a cross dividing one buttock into four quarters.
  2. The traditional site is the upper outer quarter, close to the hip crest.
  3. The hip (ventrogluteal) site reaches the same gluteal muscles with landmarks that are easier to trust.

Why it is used. Still shown in many older guides because the muscle is so large.

Careful. The sciatic nerve and the superior gluteal artery are close by, and the fat layer is often thick enough that oil ends up in fat instead of muscle.

Buttock quadrants and the sciatic nerveDr. Nabil Ebraheim, MD, Orthopaedic surgeon, University of ToledoSection 0:08–1:24 of their video · YouTube

Route for Testosterone 400Into the muscle (IM)

  • Pick the big musclesConcentrated 400 mg/ml oils are among the ones people most often say leave the muscle sore. The hip and outer thigh handle them best; the shoulder is for small volumes only.
  • Rotate widelyShort esters leave the body quickly, so they are injected more often. More injections means more spots in the rotation, so each one fully settles first.
  • Warm it in your handRolling the vial between your palms for a minute thins the oil so it pushes more easily. Never heat it in water or a microwave.
  • Wash your hands
  • Alcohol on the stopper and skin, let it dry
  • New sterile needle and syringe every time
  • Never share any of it
  • Sharps into a puncture-proof container

General reference from standard nursing injection guidance, not medical advice. Spreading redness, heat, swelling, pus, fever, numbness or pain that keeps getting worse needs a doctor. A pharmacist or nurse can show you the technique in person.

07Brand vs brand

Brand vs brand

The same compound from another maker. What changes is the pack, the strength per tablet or ml, and the price per unit.

08Risks

Side effects and risks

Expect the risks of testosterone at higher doses. All of them rise with dose and duration.

Shutdown of natural testosterone

Outside testosterone switches off LH and FSH signalling. Your own production stops, testes shrink, and fertility drops until you recover, which may take months.

Thick blood

Hematocrit rises with dose. When it’s too high, the risk of clots and stroke goes up. A CBC partway through tells you where you are.

Heart health

Raised blood pressure, lower HDL and fluid retention all strain the heart. Track your blood pressure at home and keep doing cardio.

Gynecomastia

High estradiol can lead to tender nipples and breast tissue that may need surgery to remove. Bloodwork helps you catch it early.

Injection sites

Use new, sterile needles each time and rotate between large muscles. Worsening redness, heat or swelling a few days after an injection can mean an abscess and needs a doctor.

Don’t use it if you

Are under 18, pregnant or breastfeeding, have prostate or breast cancer (or a history of it), untreated sleep apnea, high hematocrit, or heart, liver or kidney disease. Women risk permanent virilization.

09Interactions

Interactions

Medicines and substances that change how this product behaves, or that it changes. Show this list to your pharmacist along with everything else you take.

  • SeriousWarfarin and other blood thinners

    Androgens make warfarin work harder. INR can rise quickly and bleeding has been reported, so the blood thinner usually needs closer checks and often a lower dose.

  • CautionInsulin and diabetes tablets

    Anabolic steroids can lower blood sugar and change insulin sensitivity, so diabetes medicines may need to be adjusted.

  • CautionPrednisone and other corticosteroids

    Both hold on to salt and water. Together they make swelling and blood-pressure rises more likely, which matters most with heart, liver or kidney disease.

  • Good to knowOral steroids at the same time

    An oral 17-alpha-alkylated steroid adds liver strain and pushes HDL cholesterol down further on top of what this injectable already does.

10Bloodwork

Bloodwork checklist

Test before you start, around week 6, and 4–6 weeks after your last injection.

  • CBC, especially hematocrit
  • Total and free testosterone, estradiol (sensitive test), LH and FSH
  • Lipids: HDL, LDL, triglycerides
  • Liver and kidney function
  • PSA for men over 40
  • Weekly home blood pressure

11After a course

Post-cycle therapy and support

After a course, most people wait about two weeks for the long esters to clear, then use post-cycle therapy (PCT) with a SERM such as tamoxifen (Nolvadex) or clomiphene (Clomid) to help restart natural testosterone. Keep an aromatase inhibitor such as anastrozole (Arimidex) for when bloodwork confirms high estradiol, not as a routine. Both are under Pairs well with below.

12Pairs well with

Pairs well with

13Delivery

Delivery across Canada

Everything ships from inside Canada, so there is no border, no customs and no currency conversion.

Canada Post Xpresspost$30Free on orders over $300
Purolator / FedEx$60Courier option at checkout
  • DispatchOrders ship by Canada Post Xpresspost, with tracking within 72 hours of payment. Customers commonly report 2 to 4 days to arrive, depending on the province and postal code.
  • PackagingA plain outer box with no product names or branding.
  • Delivery guaranteeIf a parcel is lost or seized in transit, we reship it free. Delivery policy
  • ReturnsBecause of what these products are, opened or delivered orders can’t be returned. A wrong item is replaced free.
  • PaymentInterac e-Transfer, priced in Canadian dollars.

14Questions

Common questions

How does it compare to Zionova Testosterone 400?

Both contain 200 mg of enanthate and 200 mg of cypionate per ml in a 10 ml vial, so the real difference is the manufacturer. You can compare both under Compare brands on this page.

Why choose a 400 mg/ml testosterone?

Less oil per dose. At 600 mg a week, that’s 1.5 ml instead of 2.4 ml of a 250 mg/ml product. If you’re using replacement-level doses, a standard 250 mg/ml testosterone is easier to measure.

How often should I inject?

Once or twice a week. Two smaller injections give steadier levels and usually less soreness.

How do I store it?

At room temperature, away from light. If it crystallizes in the cold, warm the vial and swirl until clear; don’t inject it if it stays cloudy.

How fast is shipping in Canada?

Orders ship by Canada Post Xpresspost, with tracking within 72 hours of payment, with tracking.

Is it legal in Canada?

Anabolic steroids, including testosterone, are Schedule IV substances under the Controlled Drugs and Substances Act. Possessing them for personal use isn’t an offence; trafficking, importing and exporting without authorization are.

How is my order packaged?

In a plain, unbranded box with no product names on the outside.

15Research

Research behind this page

The studies and guidelines the clinical and safety information above leans on. Every link opens the record on PubMed.

  1. 1
  2. 2
  3. 3
    Testosterone therapy and secondary erythrocytosis

    Int J Impot Res2022White J et al.PMID 34987178

  4. 4

16Reviews

What customers say

5.019 ratings
  • 5 ★18
  • 4 ★1
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  • 2 ★0
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Fariq S.Verified order ·

SteroidsCanada.is replied

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AnonymousVerified order ·

SteroidsCanada.is replied

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JacekVerified order ·

Good results, fast delivery

SteroidsCanada.is replied

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JacekVerified order ·

Very good product, I'm gonna use again

SteroidsCanada.is replied

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Brian B.Verified order ·

Must have

SteroidsCanada.is replied

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JacekVerified order ·

Fast delivery , great results

SteroidsCanada.is replied

Thank you, Jacek! Getting orders packed and tracked quickly is something we work hard at, so we're glad it showed. Great to hear the Testosterone 400 (Genetix) lived up to expectations. We appreciate your support.

After your order is delivered we email you a link to review it.

Educational information only, not medical advice. Talk to a doctor or pharmacist before using any anabolic steroid, hormone, peptide or prescription drug. Adults 18+ only. Sold and shipped from Canada by SteroidsCanada.is.