Once testosterone deficiency is confirmed and you and a prescriber decide treatment makes sense, the next question is format. Injections, gels and creams all deliver testosterone, but they differ in how often you dose, how steady your levels are, and what the risks look like for you and the people around you.
Key Takeaways
- No format is best for everyone; the right one depends on routine, skin, household, monitoring and preference.
- Injections give peaks and troughs between doses; topical gels and creams give steadier daily levels.
- Testosterone gels carry an FDA boxed warning about secondary exposure, especially for children who touch treated skin.
- Many "creams" sold online are compounded, which means they are not FDA-approved products.
- In 2025 the FDA required class-wide label updates for testosterone, including blood pressure warnings; monitoring matters with every format.
The main formats at a glance
| Format | Dosing rhythm | Level pattern | Key practical issue |
|---|---|---|---|
| Intramuscular injection (cypionate, enanthate) | Typically every 1 to 2 weeks, sometimes split more often | Peak after injection, trough before next | Needles; mood or energy swings for some men near the trough |
| Subcutaneous injection | Weekly or more often, small needle | Smaller swings with frequent dosing | Needs comfort with self-injection |
| FDA-approved gels and solutions | Daily, on skin | Relatively steady | Skin-to-skin transfer risk; must dry, cover, wash hands |
| Compounded creams | Daily, on skin | Varies with formulation | Not FDA-approved; absorption and strength less standardized |
| Other FDA-approved options | Oral capsules, nasal gel, pellets, long-acting injection | Varies by product | Availability, insurance, and some require in-office procedures |
Injections
Injections are the most widely used format in online TRT programs, partly because they are flexible and typically less expensive than branded topicals. Testosterone cypionate and enanthate are oil-based and given into a muscle or, increasingly, just under the skin.
The trade-off is rhythm. Levels rise after an injection and fall before the next one. Some men notice the difference, feeling great early in the cycle and flat at the end. Splitting the same weekly amount into smaller, more frequent doses can smooth this out, which is why many prescribers now favour weekly or twice-weekly dosing.
Injections are also more often associated with a rise in hematocrit, the proportion of red blood cells in the blood. That is why hematocrit is a standard part of TRT monitoring. The TRT monitoring checklist covers what should be checked and when.
Gels and solutions
FDA-approved testosterone gels are applied once a day to the shoulders, upper arms or another labeled area. Because absorption is continuous, levels tend to be steadier than with injections. Many men like that there are no needles.
Other practical points: some men get skin irritation, timing around showers and swimming matters, and absorption varies between people. Prescribers usually check levels after starting and adjust the dose.
Creams, and why the word matters
Many online clinics advertise "testosterone cream". In most cases this is a compounded product made by a pharmacy rather than an FDA-approved brand or generic. The FDA states that compounded drugs are not reviewed for safety, effectiveness or quality before marketing. Strength and absorption can be less standardized than an approved gel, so follow-up labs become even more important. The skin-transfer precautions for gels apply to creams too.
Some men use compounded creams on the scrotum or other high-absorption areas under a prescriber's direction. That is a clinical decision with its own monitoring needs, not a DIY tweak.
Other FDA-approved options
The menu is broader than the three formats in the title. FDA-approved options include oral testosterone undecanoate capsules, a nasal gel, subcutaneous pellets placed in a clinic, and a long-acting injection given in a medical office. These are less common in cash-pay online programs, often because of cost, insurance or in-office requirements, but they are worth asking about if the usual formats do not suit you.
Safety and the 2025 label changes
In 2025 the FDA required class-wide labeling changes for testosterone products. After the TRAVERSE trial found testosterone was noninferior to placebo for major adverse cardiovascular events in men with or at high risk of heart disease, the FDA asked manufacturers to remove boxed warning language about increased cardiovascular risk. It also required a warning about blood pressure increases on products that did not already carry one. The label continues to limit use for age-related low testosterone without an identified cause.
Whatever the format, responsible TRT includes baseline and follow-up testosterone levels, hematocrit, blood pressure, and prostate monitoring as appropriate for age. See TRT side effects and safety.
BiltRx
Broader Telehealth PlatformED treatment inside a broader men's-health, hormone and wellness telehealth platform.
Listed because it offers hormone care alongside ED and wellness services. Ask which testosterone formats it prescribes and how its monitoring labs work before you sign up.
- Online intake; a licensed prescriber decides whether treatment is appropriate
- Confirm eligibility, medication options, total price and renewal terms on the provider's own checkout
- Check that the service operates in your state before starting
Signs your current format may not be the right fit
Many men start on whatever their clinic offers by default. These are reasonable prompts to raise a format change with your prescriber:
- Energy, mood or libido reliably dips in the days before your next injection.
- Follow-up labs show levels that stay low despite good adherence to a topical.
- Persistent skin irritation at gel or cream application sites.
- Rising hematocrit on follow-up bloodwork.
- A new baby, young children or a pregnant partner at home, which makes skin-transfer risk more pressing.
Changing format is routine. Expect a recheck of testosterone and hematocrit a few weeks after the switch.
Cost and convenience, qualitatively
We are not listing prices because they change often and vary by insurer and program. In general terms, generic injectable testosterone tends to be the least expensive medication option, while brand-name gels and newer FDA-approved formats tend to cost more, especially without insurance coverage. Compounded creams sit somewhere in between, depending on the pharmacy. Online programs usually charge a membership or visit fee on top of medication and labs, so compare the total monthly cost, not the medication alone. The telehealth TRT access guide explains how programs bundle these pieces.
Convenience cuts different ways. Injections mean fewer dosing days but a needle. Gels mean a daily routine and transfer precautions. Pellets avoid both but require an in-office procedure every few months. The best format is often the one you will use consistently.
How to choose
- Children or a partner at home, lots of skin contact? Injections avoid transfer risk.
- Needle-averse? An FDA-approved gel is the standard non-injection choice.
- Noticing swings on injections? Ask about smaller, more frequent doses before switching formats.
- Hematocrit creeping up? Your prescriber may adjust dose, frequency or format.
- Considering a compounded cream? Ask why it is preferred over an approved gel and how levels will be checked.
The online TRT guide explains how telehealth programs structure care, and the testosterone provider comparison lists services side by side.
Frequently Asked Questions
Which TRT format is most effective?
All of the main formats can raise testosterone into the normal range when dosed and monitored properly. They differ more in rhythm, convenience and side-effect profile than in overall effectiveness.
Are injections or gels safer?
Each has different risks. Injections are more often linked to rising hematocrit; gels carry a risk of transferring testosterone to others through skin contact. Monitoring is required either way.
Is testosterone cream the same as gel?
Not necessarily. FDA-approved products are gels and solutions. Most creams sold online are compounded, which means they are not FDA-approved.
Can I switch formats?
Yes, with your prescriber's guidance. Switching usually means rechecking levels a few weeks later to confirm the new dose is right.
Did the FDA remove the testosterone heart warning?
In 2025 the FDA required removal of boxed warning language about increased cardiovascular risk after the TRAVERSE trial, and added blood pressure warnings across the class. Check the current label for your specific product.
Sources
- FDA: Class-wide labeling changes for testosterone products
- Pharmacy Times: FDA labeling changes for testosterone after TRAVERSE
- AUA: Evaluation and Management of Testosterone Deficiency (2024)
- FDA: Compounding and the FDA — Questions and Answers
Medical guidance and labeling change. We link primary sources so you can check the current version yourself.