Types of Injectable Testosterone:

  • Testosterone Cypionate
  • Testosterone Enanthate
  • Testosterone Propionate

All testosterone types are contained in USP grade oil

How To Fill the syringe:

  • Remove safety seal (plastic cap) from the unopened vial and wipe rubber-stopper top with alcohol. Wipe rubber-stopper top before every injection to help ensure sterility.
  • Using a 3cc syringe and attached needle; push the needle into the rubber-stopper top and turn the vial upside-down while making sure that the needle tip is below the level of the top of the testosterone inside the vial.
  • Pull back the plunger and draw out your dose of testosterone (push plunger back and forth to try and remove as much air-bubbles as possible) using the far end of the plunger tip and the syringe demarcations to measure the quantity of the dose.
  • Remove needle from the vial and pull plunger back to pull testosterone which might be trapped in needle tip.
  • Carefully twist off the needle used to “draw’’ the testosterone and replace it with a new needle for injection (usually a 25G 1-inch needle).

You can inject into one of 2 places: Deltoid (shoulder) or Gluteus muscle (“butt-cheek”). Find whichever works best for you, or alternate between them.

How to inject Testosterone via IM (Intramuscular – “in the muscle”) injection:

Type of needle to use for injecting testosterone intramuscular (IM):

  • 25g 1”- Best to use with testosterone in grapeseed oil
  • 23g 1”- Best to use with testosterone in sesame or cottonseed oil

*the type of oil should be stated on the bottle’s label

  • Determine which site you will be using: Gluteus muscle – always inject into upper-outer quadrant of the butt-cheek.
  • Clean the injection site with an alcohol pad.
  • Make sure plunger is pushed sufficiently toward the needle to remove all air-bubbles, leaving only the testosterone.
  • Relax the muscle being injected. For example – if injecting into your gluteus muscle, you may lay down on your front side or lean your opposite side onto a counter-top in order to relax the side to be injected. Tensed muscle may cause a little pain.
  • Push the needle all the way straight into (perpendicular to the surface of) the muscle.
  • Once the needle is in, pull back very slightly on the plunger to ensure you do not see blood in the syringe (indicating the needle is in a vein). If you are indeed in a vein (which is rare) then you will see blood in the syringe and you should then  remove the needle and re-inject and repeat the process until no blood is seen in the syringe when the plunger is pulled back.
  • If the needle is not in a vein then simply push the plunger all the way to the end of the syringe, injecting the testosterone into the muscle and then remove the needle.


Additional Information

  • “CC” is the same thing as a “ML” CC=ML
  • 100 units an “insulin” syringe equals 1ML. 100units = 1ML
  • Be sure to keep your injections CLEAN. Always wipe your injection site with alcohol and store your medications in a clean location. Always use a new, unopened needle for each injection.  Do not reuse your needle and syringe!

Author Dr. Rand

Dr. McClain has dedicated over 35 years of his personal and professional life studying nutrition, exercise, herbs and supplements and is also a Master of Acupuncture and Traditional Chinese Medicine.

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