
$120.00
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Zionova Testosterone 400
Testosterone blend · 10 ml vial
★★★★★5.0100 reviewsBuy Zionova Testosterone 400 (Testosterone Blend 400mg/ml) online in Canada. Lab-tested injectable steroid delivering high-concentration testosterone formula for maximum anabolic output, strength, and recovery. Order from SteroidsCanada.is for guaranteed quality, discreet packaging, and fast Canadian shipping.
🚚Free shipping on orders over $300 CAD. Add $180 more with this item to qualify.
Needed with this: Syringes Pack of 10 - 25 Gauge - 3mlUse a new sterile syringe for every injection. $18Add🛡 Delivery guaranteed: lost or seized, we reship your order free. Delivery policy
You will need
It ships by Canada Post Xpresspost with tracking.
- Ships from inside Canada
- Plain, unbranded box
- Pay by Interac e-Transfer
- Lost or seized: reshipped free
- 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 Zionova Testosterone 400 is
Testosterone 400 is a high-strength blend of two long-acting testosterone esters: 200 mg of testosterone cypionate and 200 mg of testosterone enanthate in every ml, for 400 mg per ml. A 10 ml vial holds 4,000 mg, so the same weekly dose takes less oil than a standard 250 mg/ml product.
Blends like this aren’t made by pharmaceutical companies; doctors prescribe single-ester testosterone. Test 400 is used mainly by people running higher doses who want fewer or smaller injections. The trade-offs are a sharper injection and a strength that makes small measuring errors bigger.
02Molecule
The molecule
What is actually in the vial or tablet, from the public chemistry databases of the U.S. National Library of Medicine.


03How it works
How it works
Once in the body, both esters release plain testosterone, which binds to androgen receptors to drive protein synthesis, red blood cell production and strength gains. Some of it converts to estradiol (estrogen) and some to DHT.
- Two similar esters. Enanthate (half-life about 4–5 days) and cypionate (about 5–8 days) release at almost the same rate, so the blend behaves much like either one alone: inject once or twice a week.
- More hormone per ml. That’s the main difference from regular testosterone. Keeping 400 mg dissolved usually needs more solvent, which is why many people find high-strength oils sting more and cause more post-injection soreness.
04Clinical reference
Dosing information
Clinical reference. There’s no prescription equivalent of this blend, so the reference is testosterone itself: for low testosterone, guidelines suggest 75–100 mg a week or 150–200 mg every two weeks. Doses used for bulking are often several times that, and every risk on this page rises with dose.
Talk to a doctor before use, and get bloodwork before, during and after.
Measuring at 400 mg/ml. Small volumes carry big doses:
- 0.25 ml = 100 mg
- 0.5 ml = 200 mg
- 1 ml = 400 mg
Use a 1 ml syringe with fine markings, and double-check the volume before every injection.
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
—
Enter your amount
- —
- —
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.
1Hip (ventrogluteal)Gluteus medius and minimusIM
- 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.
- 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.
- 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
- Sit down. Find the bony knob at the top of the thigh and the top of the kneecap.
- Divide the distance between them into three equal parts.
- 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
- Find the bony ridge at the top of the shoulder (acromion).
- Measure two to three finger-widths straight down from it.
- 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
- Picture a cross dividing one buttock into four quarters.
- The traditional site is the upper outer quarter, close to the hip crest.
- 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.

Zionova Testosterone 400
- Strength
- 400 mg/ml
- Pack
- 10 ml vial
- Total
- 4,000 mg
- Per unit
- $0.03 per mg
- Rating
- 5.0 ★ (100)
$120.00

Testosterone 400 Genetix Pharma
- Strength
- 400 mg/ml
- Pack
- 10 ml vial
- Total
- 4,000 mg
- Per unit
- $0.03 per mg
- Rating
- 5.0 ★ (19)
$120.00
Add to cart08Risks
Side effects and risks
Testosterone 400 is usually used at higher doses, and every risk below scales with dose.
Suppression and fertility
Natural testosterone production shuts down while you use it; sperm production falls and testes shrink. Recovery after stopping can take months.
Hematocrit and clots
Higher doses push red blood cell counts up faster. Thick blood raises the risk of clots, heart attack and stroke, so check your CBC regularly.
Blood pressure and cholesterol
Expect higher blood pressure and lower HDL cholesterol at bulking doses. Monitor both, keep up cardio and keep salt in check.
Estrogen side effects
More testosterone means more conversion to estradiol: bloating, sensitive nipples and possible gynecomastia. Bloodwork tells you whether estradiol is actually high.
Injection pain and infection
High-strength oils can cause more soreness. Inject slowly into a large muscle, rotate sites and always use new, sterile equipment. Increasing heat, swelling or redness needs medical attention.
Don’t use it if you
Are under 18, pregnant or breastfeeding, have or have had prostate or breast cancer, untreated sleep apnea, high hematocrit, or heart, liver or kidney disease. In women it causes virilization that can be permanent.
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
Get tested before you start, at 6 weeks, and 4–6 weeks after you finish. At higher doses, a mid-course CBC matters most.
- CBC: hematocrit and hemoglobin
- Hormones: total and free testosterone, estradiol (sensitive test), LH, FSH
- Lipid panel: HDL, LDL, triglycerides
- Liver and kidney: ALT, AST, creatinine
- PSA if you’re over 40
- Blood pressure: at home, weekly
11After a course
Post-cycle therapy and support
Because both esters are long-acting, post-cycle therapy (PCT) usually starts about two weeks after your final injection. Most PCT uses a SERM, such as tamoxifen (Nolvadex) or clomiphene (Clomid), to help your body restart its own testosterone. An aromatase inhibitor such as anastrozole (Arimidex) is only worth using if bloodwork shows high estradiol with symptoms. Find these 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.
- 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
Is Test 400 stronger than regular testosterone?
Not per mg. 400 mg of Test 400 has the same effect as 400 mg of testosterone enanthate or cypionate. It’s simply more concentrated, so you inject less oil.
Why does Test 400 hurt more to inject?
High-strength oils usually need more solvent to keep the hormone dissolved, and that can sting and cause soreness. Injecting slowly, warming the vial first and using large muscles helps.
How often should I inject it?
Once or twice a week. Splitting the weekly amount into two smaller injections gives steadier levels and less soreness per shot.
My vial has crystals in it. Is it bad?
High-concentration oils can crystallize when cold. Warm the vial in warm water and swirl until completely clear before use. If it won’t clear, don’t inject it.
How fast is shipping in Canada?
Orders ship by Canada Post Xpresspost, with tracking within 72 hours of payment, with tracking.
Is Testosterone 400 legal in Canada?
Testosterone and other anabolic steroids 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.
- 1Testosterone Therapy in Men With Hypogonadism: An Endocrine Society Clinical Practice Guideline
J Clin Endocrinol Metab2018Bhasin S et al.PMID 29562364
- 2The effects of supraphysiologic doses of testosterone on muscle size and strength in normal men
N Engl J Med1996Bhasin S et al.PMID 8637535
- 3Testosterone therapy and secondary erythrocytosis
Int J Impot Res2022White J et al.PMID 34987178
- 4Recovery of spermatogenesis following testosterone replacement therapy or anabolic-androgenic steroid use
Asian J Androl2016McBride JA, Coward RMPMID 26908067
16Reviews
What customers say
- 5 ★97
- 4 ★3
- 3 ★0
- 2 ★0
- 1 ★0
MarcinVerified order ·
★★★★★Did not start. Hope will b as good as other
Thanks for the five stars, Marcin! We appreciate you ordering with us again. Reach out any time if you have questions.
Matthew L.Verified order ·
★★★★★Great strong product
Thanks for taking the time to review, Matthew! We're glad the Zionova Testosterone 400 met your standards. See you next time!
Nick B.Verified order ·
★★★★★Always superior quality and no hassle delivery. Been ordering now for 4 years without ever having any issues. Highly recommended!
Thanks so much, Nick! Happy to hear the delivery was fast. We really appreciate you coming back to us. We appreciate your support.
Maria K.Verified order ·
★★★★★Thank you, Maria! We're glad everything went well with your Zionova Testosterone 400. Reach out any time if you need anything.
Chris W.Verified order ·
★★★★★Five stars, thank you, Chris! We appreciate you ordering the Zionova Testosterone 400 from us.
Sean M.Verified order ·
★★★★★Absolutely amazing quality, product is unmatched and delivered fast and discreet
Thanks for taking the time to review, Sean! Getting orders packed and tracked quickly is something we work hard at, so we're glad it showed. We're glad the packaging was discreet and secure. We look forward to your next order.
After your order is delivered we email you a link to review it.
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