We accepte-Transfer
Free ship$300+
Rating4.9★ · 767
TrackingWithin 72 h
Lost / seizedReship freeSince2003
Masteron Propionate Genetix Pharma 10ml vial at 100mg/ml for cutting cycles and lean muscle growth.

Batch COA on requestPage checked Oct 2026

Genetix PharmaInjectables SteroidsIn stock

Masteron Propionate Genetix Pharma

Drostanolone propionate · 10 ml vial

$96.00CAD$0.096 per mg

Buy Masteron Propionate Genetix Pharma (Drostanolone Propionate) online in Canada. Lab-tested injectable steroid delivering fast-acting muscle hardening, cutting support, and a dry, defined look. Order from SteroidsCanada.is for guaranteed quality, discreet packaging, and fast Canadian shipping.

or

Free shipping on orders over $300 CAD. Add $204 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

BUY 3+ SAVE 5% · 5+ SAVE 10%

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
  • Plain, unbranded box
  • Pay by Interac e-Transfer
  • Lost or seized: reshipped free
Spec sheetDrostanolone propionateGenetix Pharma · Masteron Propionate Genetix Pharma
Compound
Drostanolone propionate
Strength
100 mg/ml
Pack
10 ml vial
Total per order
1,000 mg
Form
Injectable (oil)
Half-life
About 2 days
Value
$0.096 per mg

01The basics

What Masteron Propionate by Genetix Pharma is

Genetix Pharma’s Masteron Propionate contains drostanolone propionate at 100 mg per ml in a 10 ml vial, 1,000 mg in total. It’s a DHT-derived injectable that doesn’t convert to estrogen, and its short ester means it starts and stops working quickly.

It’s mainly used near the end of a diet, when body fat is already low, to keep muscle and add a harder, drier look. Its androgenic side effects are its main downside, especially for anyone worried about their hair.

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 propionate

Drostanolone propionate

C23H36O3

Molar mass
360.5 g/mol
CAS
521-12-0
PubChem
224004

03How it works

How it works

Drostanolone binds androgen receptors and supports muscle retention when calories are low.

  • Can’t become estrogen, so it adds no estrogen-driven water.
  • Half-life about 2 days: injections every 2–3 days keep levels even, and it’s mostly gone within a week of stopping.
  • DHT-like effects on hair, skin and prostate.

04Half-life

Half-life, in plain numbers

A half-life of about 2 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%2 days25%4 days13%6 days6.3%8 days3.1%10 days
One half-life
2 days
About 97% gone
10 days
Levels level out with regular use after
8 days–10 days

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

05Clinical reference

Dosing information

Clinical reference. Drostanolone propionate was once prescribed for advanced breast cancer at 100 mg three times a week. It has no current medical use.

At 100 mg per ml, 1 ml is 100 mg. Every risk on this page rises with dose. 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

—

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.

07Injection sites

Where it is injected

Masteron Propionate 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 PropionateInto the muscle (IM)

  • Pick the big musclesShort esters such as propionate and acetate are the oils most often described as stinging or leaving 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.

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

The risks below rise with dose, and with every extra compound in a stack.

Hair loss

Can speed up male-pattern hair loss in men who are genetically prone.

Lipids

Lower HDL and higher LDL, which strain the heart over time.

Acne

Common on the back, chest and shoulders.

Testosterone suppression

Natural production drops; without testosterone alongside, low libido and fatigue follow.

Injection sites

Frequent injections raise the chance of irritation and infection. New sterile equipment every time.

Don’t use it if you

Are under 18, pregnant or breastfeeding, have prostate or breast cancer, heart disease, high blood pressure, or are a woman wanting to avoid virilization.

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, at 4 weeks, and 3–4 weeks after you finish.

  • Lipids: HDL, LDL, triglycerides
  • Testosterone, estradiol, LH, FSH
  • CBC and liver panel
  • PSA for men over 40

12After a course

Post-cycle therapy and support

With its short ester, post-cycle therapy using a SERM such as tamoxifen (Nolvadex) or clomiphene (Clomid) can start a few days after the last injection, unless a longer-acting testosterone is in the same cycle. 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

How does it compare to Zionova Masteron Propionate?

Same compound and strength (100 mg/ml, 10 ml). The difference is manufacturer and price; compare them under Compare brands on this page.

When does Masteron work best?

When you’re already lean. Its “hardening” effect is most visible at low body fat, which is why it’s used late in a diet.

How often is Masteron Propionate injected?

Every 2–3 days, because of its short half-life.

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

No reviews for this product yet. After an order is delivered we email the customer 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.