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Masteron Enanthate

Batch COA on requestPage checked Oct 2026

Genetix PharmaInjectables SteroidsIn stock

Masteron Enanthate Genetix Pharma

Drostanolone enanthate · 10 ml vial

4.910 reviews
$150.00CAD$0.075 per mg

Buy Masteron Enanthate Genetix Pharma (Drostanolone Enanthate) online in Canada. Lab-tested injectable steroid delivering muscle hardening, anti-estrogenic properties, and a lean physique during cutting cycles. Order from SteroidsCanada.is for guaranteed quality, discreet packaging, and fast Canadian shipping.

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Complete your cycle

What most customers add with this:

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

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Spec sheetDrostanolone enanthateGenetix Pharma · MasteronEGenetix
Compound
Drostanolone enanthate
Strength
200 mg/ml
Pack
10 ml vial
Total per order
2,000 mg
Form
Injectable (oil)
Half-life
About 5 days
Value
$0.075 per mg

01The basics

What Masteron Enanthate by Genetix Pharma is

Masteron is drostanolone, an injectable anabolic steroid made from DHT. This version uses the long-acting enanthate ester at 200 mg per ml in a 10 ml vial (2,000 mg in total). It doesn’t convert to estrogen, so it adds little water, and it’s mostly used in cutting phases for a harder, drier look.

Drostanolone was once prescribed for advanced breast cancer and has no current medical use. Like any DHT-derived steroid, it’s strongly androgenic, which matters for your hair, skin and prostate. Here’s what to know.

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 Drostanolone enanthate

Drostanolone enanthate

C27H44O3

Molar mass
416.6 g/mol
CAS
13425-31-5
PubChem
13014314

03How it works

How it works

Drostanolone binds androgen receptors and supports muscle retention and strength during a calorie deficit. Its traits come from its DHT origin:

  • No aromatization. It can’t become estrogen, so it doesn’t cause estrogen-driven water retention or gynecomastia.
  • Strongly androgenic. Like DHT itself, it can speed up scalp hair loss and cause acne in people prone to them.
  • Long-acting ester. Enanthate gives a half-life of about 5 days, so it’s injected once or twice a week. The propionate version needs injections every other day.

Because it shuts down your own testosterone without providing any estrogen, it’s almost always used alongside testosterone.

04Half-life

Half-life, in plain numbers

A half-life of about 5 days means half of what is in the body is gone after that time, then half of the rest, and so on. The ester decides how slowly the hormone leaves the injection depot, which is why long esters are injected less often than short ones.

100%Start50%5 days25%10 days13%15 days6.3%20 days3.1%25 days
One half-life
5 days
About 97% gone
25 days
Levels level out with regular use after
20 days–25 days

A textbook model built from the half-life alone. Real numbers vary from person to person.

05Clinical reference

Dosing information

Clinical reference. When drostanolone propionate was prescribed for advanced breast cancer in women, the dose was 100 mg injected three times a week. It was later withdrawn, and there’s no clinical dose for the enanthate form or for men.

At 200 mg per ml, 0.5 ml is 100 mg and 1 ml is 200 mg. Doses used for physique goals vary widely, and every risk on this page rises with dose and length of use.

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

06Measure 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.

07Injection sites

Where it is injected

Masteron Enanthate 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 Masteron EnanthateInto the muscle (IM)

  • Hip, thigh or shoulderLong-ester oils like this one tend to be smooth on the muscle, so all three common sites are used. Keep the shoulder for smaller volumes.
  • Rotate sidesGoing back to the same spot before it has healed builds lumps and scar tissue. Most people rotate through at least four spots: both hips and both thighs.
  • 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.

08Brand 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.

09Risks

Side effects and risks

Masteron is considered milder than many steroids, but its androgenic side effects are pronounced.

Hair loss

If male-pattern baldness runs in your family, drostanolone can speed it up. Hair lost this way often doesn’t grow back.

Acne and oily skin

Common, especially on the back, shoulders and chest. Keep skin clean and see a doctor about severe or scarring acne.

Cholesterol and blood pressure

It lowers HDL (“good”) cholesterol and can raise blood pressure, adding to the strain from other compounds in a stack.

Suppression

It shuts down natural testosterone. Used without testosterone, the result can be low libido, low mood and poor energy.

For women: virilization

Deeper voice, body and facial hair, clitoral enlargement and menstrual changes. Some changes are permanent.

Don’t use it if you

Are under 18, pregnant or breastfeeding, have or have had prostate or breast cancer, have heart disease or high blood pressure, or are already losing hair and want to keep it.

10Interactions

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.

11Bloodwork

Bloodwork checklist

Test before you start, around week 6, and 4–6 weeks after you finish.

  • Lipid panel: HDL, LDL, triglycerides
  • Hormones: total and free testosterone, estradiol, LH, FSH
  • CBC, especially if you’re also using testosterone
  • Liver panel: ALT, AST
  • PSA if you’re over 40
  • Blood pressure weekly at home

12After a course

Post-cycle therapy and support

Masteron suppresses natural testosterone, so after a course many people use post-cycle therapy with a SERM such as tamoxifen (Nolvadex) or clomiphene (Clomid), usually starting about two weeks after the last enanthate injection. Since drostanolone doesn’t aromatize, an aromatase inhibitor isn’t needed for it, though the testosterone it’s paired with may still need watching. See Pairs well with below.

13Pairs well with

Pairs well with

14Delivery

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.

15Questions

Common questions

Masteron enanthate or propionate: what’s the difference?

Same hormone, different ester. Propionate acts quickly and needs injections every other day; enanthate lasts longer (about 5 days), so once or twice a week is enough.

Can Masteron be used on its own?

It’s rarely used alone. It shuts down your testosterone without replacing it or providing estrogen, which tends to cause low libido, low mood and joint discomfort. That’s why it’s usually added to testosterone.

Does Masteron cause hair loss?

It can. As a DHT derivative, it speeds up male-pattern hair loss in people who are genetically prone to it.

Is Masteron safe for women?

No steroid is free of risk for women, and Masteron is quite androgenic. Virilization, including a deeper voice, can be permanent.

How fast is shipping in Canada?

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

Is Masteron legal in Canada?

Drostanolone is an anabolic steroid, listed in Schedule IV of the Controlled Drugs and Substances Act. Possessing it 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.

16Research

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
    Anabolic-androgenic steroids: How do they work and what are the risks?

    Front Endocrinol (Lausanne)2022Bond P et al.PMID 36644692

17Reviews

What customers say

4.910 ratings
  • 5 ★9
  • 4 ★1
  • 3 ★0
  • 2 ★0
  • 1 ★0

DominicVerified order ·

Excellent product, fast shipping as usual.

SteroidsCanada.is replied

Thank you, Dominic! Getting orders packed and tracked quickly is something we work hard at, so we're glad it showed. We really appreciate you coming back to us. We look forward to your next order.

DominicVerified order ·

Very good product, the dosage is perfect fast shipping as usual.

SteroidsCanada.is replied

Thank you for the review, Dominic! Fast, tracked shipping from inside Canada is a big part of what we do, so this is great to hear. We really appreciate you coming back to us. Thanks for choosing SteroidsCanada.is.

AnonymousVerified order ·

SteroidsCanada.is replied

Thanks so much for the rating! It means a lot to our small Canadian team. See you next time.

JacekVerified order ·

Good product, fast delivery

SteroidsCanada.is replied

Thank you for the review, Jacek! Fast, tracked shipping from inside Canada is a big part of what we do, so this is great to hear. We stand behind every product we ship, so this is great to hear. See you next time!

JacekVerified order ·

Fast delivery, food product

SteroidsCanada.is replied

Much appreciated, Jacek! Happy to hear the delivery was fast. See you next time!

Brian B.Verified order ·

So dry

SteroidsCanada.is replied

Thanks so much, Brian! See you next time!

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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.