What testosterone injections are
Testosterone cypionate is testosterone attached to an ester and dissolved in oil, so it releases slowly from the injection site. The Depo-Testosterone label gives its half-life as about eight days after an intramuscular injection. Injections are the most widely used form of testosterone therapy because the dose is direct, easy to adjust and does not depend on absorption through skin or gut.
Injections are one of four testosterone options at Ultimate Male, alongside oral Kyzatrex, Pellecome pellets and HCG. They tend to suit men who want precise, adjustable dosing and do not mind a small injection on a set schedule.
Who should not start injections
Testosterone is contraindicated in breast cancer and known or suspected prostate cancer. Men who are actively trying to conceive should not use it, because the AUA guideline notes it suppresses sperm production; HCG is the usual alternative. A hematocrit above 50% before treatment, untreated severe sleep apnea or uncontrolled heart failure calls for evaluation before any start.
How your dose is set from pre-screening labs
There is no single standard dose. The label range, 50 to 400 mg every two to four weeks, is wide on purpose, and your starting dose comes from your own numbers.
Your TRT pre-screening panel gives the baseline: total testosterone, estradiol, PSA and a complete blood count. The guideline asks for two low morning testosterone results before diagnosis. It also says to look for a cause before treating when hematocrit is above 50%, to measure PSA in men over 40, and to check estradiol if you have breast symptoms.
Your provider weighs those results with your age, weight, symptoms and goals, then picks a conservative starting dose. After several injections, testosterone is rechecked, and the dose is adjusted toward the middle third of the normal range. The AUA defines a good outcome as levels of roughly 450 to 600 ng/dL together with symptom improvement. Reference ranges vary by lab. Our page on the target testosterone level on TRT explains the numbers, and the dose is always set by your provider, never adjusted on your own.
Weekly versus twice-weekly schedules
Because cypionate has a half-life of about eight days, longer gaps between shots create bigger swings: a high peak a day or two after the injection and a low point before the next one. Some men feel those swings as energy or mood dips late in the cycle.
| Schedule | How levels behave | Who it tends to suit |
|---|---|---|
| Every 2 weeks (within label) | Higher peak, deeper trough | Men who prefer fewer injections |
| Weekly | Smaller swings, steadier levels | Most men starting today |
| Twice weekly | Smallest swings, smaller doses each time | Men with symptoms at the trough or high hematocrit or estradiol at the peak |
Splitting the same weekly total into two smaller shots does not add testosterone; it smooths the curve. It does mean twice as many injections, which matters if you come to the clinic for them. Timing of your follow-up draw matters more as schedules change; the guideline notes there is little data on the ideal moment in the cycle and suggests waiting at least three to four cycles. Our page on weekly or twice-weekly injections goes further, and trough versus peak labs explains draw timing.
Into the muscle or under the skin
The cypionate label lists intramuscular use only, deep in the gluteal muscle. In practice, the thigh and the deltoid are also used for intramuscular shots. Subcutaneous injection, a short needle into the fat of the belly or thigh, has become common because it is easier to do at home and usually less uncomfortable.
The evidence for subcutaneous dosing is growing but limited. A 2022 review in the Journal of Clinical Endocrinology and Metabolism concluded that doses similar to intramuscular ones produce comparable average testosterone levels, and that men can safely self-inject this way with training. An FDA-approved subcutaneous product exists for testosterone enanthate, given weekly, as MedlinePlus describes. For cypionate, subcutaneous use is off-label, so your provider explains that choice if you make it. Our step-by-step guides cover intramuscular injection and subcutaneous injection.
The visit, then the first months
- Free 10-minute call, then a same-day lab draw with results in 24 to 48 hours.
- Consultation with a PA-C or MD to confirm the diagnosis, review risks and choose a schedule and route.
- First injection, supervised. You either learn technique or schedule in-clinic shots.
- Recheck labs after several injections: testosterone, hematocrit, and estradiol where needed.
- Ongoing follow-up. The AUA recommends checking testosterone every 6 to 12 months once stable.
Energy, libido and mood often shift within the first weeks to months, while body composition changes take longer. Side effects to watch include acne, rising hematocrit, breast tenderness, fluid retention and soreness at the site. The label also warns that testosterone can raise blood pressure, so readings are part of each visit.
Get emergency help, not a clinic appointment, for chest pain, trouble breathing, sudden weakness on one side, or a painful swollen calf. Call 911.
Paying and booking
Ultimate Male charges per visit and does not bill insurance. There are no memberships and no published prices, and longer plans can be bundled; our page on testosterone shot cost explains what moves the total. Itemized receipts support FSA and HSA claims, and you can finance through CareCredit, Prosper Healthcare Lending or Afterpay. Arcadia Police Officers Association members get 13% off TRT and a free monthly B-12 injection.
If shots sound like the right fit, the next step is confirming the diagnosis and choosing a schedule you can keep. Call 626-319-5261 or book your TRT visit in San Gabriel or Downey, and compare injections with the other testosterone therapy options at your consultation.
