Overview
Testosterone 400 packs 400 mg of testosterone esters into each millilitre, mainly enanthate and cypionate. The higher concentration means a smaller injection volume for the same amount of hormone.
This listing is Genetix Pharma Testosterone 400 (10 ml vial), photographed as we ship it and priced in Canadian dollars.
How it works
The enanthate and cypionate esters release over several days each. Once freed, the testosterone behaves like the body’s own: androgen-receptor activation in muscle and bone, more red blood cells, partial conversion to estradiol and DHT, and suppression of LH and FSH.
Clinical reference
No prescription product is sold at 400 mg/ml. For comparison, approved enanthate and cypionate products list 50 to 400 mg every two to four weeks for hypogonadism, which this concentration would cover in one millilitre or less.
Reference information from product labels and clinical literature only. It is not a recommendation or dosing advice for you; any use should be set and monitored by a doctor.
Measuring calculator
Type the amount from your prescription or clinician; the calculator only converts it. It does not suggest how much to take.
Label strength: 400 mg/ml in a 10 ml vial.
Combinations and interactions
- Equivalent in effect to the single-ester enanthate or cypionate vials; only the concentration differs.
- Higher concentrations often contain more benzyl benzoate or alcohol to keep the hormone dissolved, which some people find stings.
- Interactions are those of testosterone: warfarin, diabetes medication, corticosteroids.
Risks and side effects
- Measuring errors. At 400 mg per ml, a small misreading of the syringe means a large change in dose. Use the measuring calculator on this page.
- Post-injection irritation. Concentrated oils can sting or cause local swelling.
- Usual testosterone risks. Suppressed fertility, raised hematocrit, lower HDL and estrogen-related side effects.
Do not use it if you are under 18, pregnant, have hormone-sensitive cancer, a high hematocrit or serious heart, liver or kidney disease.
Bloodwork to discuss with your doctor
- Testosterone
- Estradiol
- Hematocrit
- Lipid panel
- Liver enzymes
Testosterone 400 is an oil made for deep intramuscular injection. Our injectables use MCT oil, which is thinner than cottonseed or grapeseed oil and passes more easily through a 25G needle. These are the standard nursing sites, with what to look for at each. Finding it. Place the heel of your opposite hand on the bony bump at the top of the thigh, point your index finger at the front hip bone and fan your middle finger back along the hip crest. The target is the centre of that V. Why it is used. Thick muscle with a thin fat layer and no major nerves or vessels in the target zone. Nursing references now rank it first for adults. Watch for. Finding the landmarks on yourself takes practice; a mirror or a helper makes the first few easier. Nursing reference volume: Up to 3 ml Finding it. Divide the thigh from hip to knee into thirds and use the middle third on the outer front surface. Why it is used. Easy to see and reach while seated, with plenty of muscle. Watch for. Keep to the outer side: the femoral nerve and vessels run along the inner thigh. Soreness when walking for a day is common. Nursing reference volume: Up to 3 ml Finding it. Locate the bony point of the shoulder and move two to three finger widths down to the thickest part of the muscle on the outside of the arm. Why it is used. Quick to reach and good for small volumes. Watch for. It is a small muscle. Stay high: the axillary and radial nerves lie lower on the arm. Nursing reference volume: Up to 1 ml Finding it. The traditional upper outer quarter of the buttock. Why it is used. A large, familiar muscle still shown in older guides. Watch for. The sciatic nerve and a major artery are nearby and the fat layer is thicker. Most current guidance prefers the ventrogluteal site. Nursing reference volume: Up to 3 ml Every time: wash your hands, swab the stopper and skin with alcohol, use a new sterile needle and syringe and never share. See a doctor for spreading redness, heat, swelling, fever or numbness. This is general reference information from standard injection guidance, not medical advice. Peer-reviewed papers behind the facts on this page, each linked to its PubMed record.Injection sites
1VentroglutealSide of the hip · Gluteus mediusIM
2Vastus lateralisOuter thigh · QuadricepsIM
3DeltoidShoulder · DeltoidIM
!DorsoglutealUpper outer buttock · Gluteus maximusIM
Chemistry
Testosterone enanthate
Testosterone cypionate
Research
Storage and handling
Keep the vial at room temperature (15 to 25 °C), out of direct light. Do not refrigerate or freeze it: cold can make the hormone crystallise. Wipe the rubber stopper with alcohol before each draw and use a fresh needle every time.
Canadian legal status
Anabolic steroids are listed in Schedule IV of the Controlled Drugs and Substances Act. Simple possession of a Schedule IV substance is not itself an offence, but importing, exporting, producing or selling one without authorisation is. Anabolic agents are prohibited in tested sport. Laws change, so check the current rules for your situation.
FAQ
Is 400 mg/ml stronger than 250 mg/ml?
Each millilitre contains more hormone, so the same volume delivers more. The hormone itself is the same.
Why can it feel warm after injecting?
Concentrated blends use more solvent to stay liquid, which can cause brief warmth or stinging.
Which esters are in the Zionova and Genetix versions?
Both are labelled as enanthate-based blends; Genetix T400 states enanthate and cypionate on the vial.
How fast will it reach me?
Orders leave Vancouver by Canada Post Xpresspost and the tracking number arrives within 72 hours of your e-Transfer. Most provinces receive parcels 1 to 6 business days after that; the territories can take up to 10. Xpresspost is free on orders over $300, and a lost or seized parcel is reshipped at no charge.
Reviews
5.0 out of 5 from 16 reviews by customers.
Very good product, I'm gonna use again
Thank you, Jacek! We'll be glad to pack your next order whenever you're ready.
Must have
Agreed, Brian: testosterone is the foundation. Thanks for the review!
Fast delivery , great results
Jacek, you're one of our regulars and we really appreciate it. Glad the Test 400 is giving you great results.
Great service everything was exactly as discussed product is top notch no pip no issues at all, mct oil is where it’s at!
Ben, thank you! No PIP is a big deal, and you're right that the MCT oil carrier makes a difference. Glad everything matched what we discussed.
The best is test
Can't argue with that, Brian. Thanks!
Go to have it
Got to have it indeed. Thanks, Brian!
16 reviews for Testosterone 400 by Genetix Pharma – High-Potency Testosterone Blend
Only logged in customers who have purchased this product may leave a review.















Jesse (verified owner) –
Steroids Canada (store manager) –
Thank you, Jesse, for rating Genetix Test 400.
Mike N. (verified owner) –
Amazing Service, great results
Steroids Canada (store manager) –
Thanks, Mike! Amazing service and great results is the whole idea.
Renee S (verified owner) –
My order came super fast and I was extremely surprised and even more pleased to see a return address as well as my instructions on the package. I’ve ordered through other companies and other policies were that if it was lost, stolen, or sent to the wrong address the order was lost. I will be ordering more. My boyfriend also likes the product, he said that he feels great.
Steroids Canada (store manager) –
Renee, thank you for such a thoughtful review! You’ve put your finger on why we reship lost or seized parcels free: you should never lose an order you paid for. Please tell your boyfriend we’re glad he feels great.
Russell Smith (verified owner) –
Steroids Canada (store manager) –
Thank you, Russell, for rating Genetix Test 400.
Darryl G. (verified owner) –
Excellent stuff. Great gains!
Steroids Canada (store manager) –
Excellent stuff and great gains. Thanks for three reviews in one go, Darryl!
Anonymous (verified owner) –
Powerful and effective! Great results!
Steroids Canada (store manager) –
Powerful and effective: thank you for the Test 400 review!
Christopher P. (verified owner) –
Always what I expect to receive!
Steroids Canada (store manager) –
Thanks again, Christopher. Always what you expect is exactly what we promise.
George Anderson (verified owner) –
Steroids Canada (store manager) –
Thank you, George, for the Test 400 rating.
Steven S. –
👊👊
Steroids Canada (store manager) –
Fist bumps right back, Steven! Thanks for the Test 400 review.
George Anderson –
Steroids Canada (store manager) –
Thanks, George, for the five-star Test 400 rating.
Brian B. (verified owner) –
Go to have it
Steroids Canada (store manager) –
Got to have it indeed. Thanks, Brian!
Brian B. (verified owner) –
The best is test
Steroids Canada (store manager) –
Can’t argue with that, Brian. Thanks!
Ben Chamberlain (verified owner) –
Great service everything was exactly as discussed product is top notch no pip no issues at all, mct oil is where it’s at!
Steroids Canada (store manager) –
Ben, thank you! No PIP is a big deal, and you’re right that the MCT oil carrier makes a difference. Glad everything matched what we discussed.
Jacek (verified owner) –
Fast delivery , great results
Steroids Canada (store manager) –
Jacek, you’re one of our regulars and we really appreciate it. Glad the Test 400 is giving you great results.
Brian B. (verified owner) –
Must have
Steroids Canada (store manager) –
Agreed, Brian: testosterone is the foundation. Thanks for the review!
Jacek (verified owner) –
Very good product, I’m gonna use again
Steroids Canada (store manager) –
Thank you, Jacek! We’ll be glad to pack your next order whenever you’re ready.