Choosing the right testosterone delivery method is one of the most important decisions you'll make when starting TRT. Each method has distinct advantages, drawbacks, and cost profiles. The "best" option depends on your lifestyle, budget, comfort with needles, and how your body responds.
This guide breaks down every available delivery method so you can have an informed conversation with your provider.
Injectable Testosterone
Injections are the most commonly prescribed form of TRT, and for good reason. They deliver predictable blood levels, cost the least per month, and give you precise control over dosing.
Testosterone Cypionate
Testosterone cypionate is the most widely prescribed form of TRT in the United States. It's suspended in cottonseed oil and has a half-life of approximately 8 days.
Typical dosing: 100-200mg per week, usually split into two injections (e.g., 50-100mg every 3.5 days).
Why it's popular: Cypionate's half-life is long enough to allow twice-weekly injections while maintaining reasonably stable blood levels. It's been in clinical use since the 1950s, giving clinicians decades of safety data to reference.
Cost: $30-80/month for the medication itself (compounded or generic). Insurance-covered generics can be even cheaper.
Testosterone Enanthate
Enanthate is functionally interchangeable with cypionate. The half-life is nearly identical (approximately 7-8 days), and most men won't notice a difference between the two. It's suspended in sesame oil rather than cottonseed oil, which matters if you have a cottonseed allergy.
Typical dosing: Same as cypionate -- 100-200mg per week, split into two or more injections.
Cost: Comparable to cypionate. Some compounding pharmacies offer one or the other, rarely both.
Testosterone Propionate
Propionate has a much shorter half-life of roughly 2-3 days. This means more frequent injections -- typically every other day or daily. It clears the system faster, which some clinicians prefer for initial TRT trials because dose adjustments take effect more quickly.
Typical dosing: 25-50mg every other day.
Why it's less common: The injection frequency is a dealbreaker for most patients. It's primarily used in specific clinical scenarios or by experienced users who prefer daily micro-dosing protocols.
Testosterone Undecanoate (Aveed/Nebido)
Undecanoate is the long-acting option. A single injection of 750mg (Aveed in the US) or 1000mg (Nebido internationally) lasts approximately 10-14 weeks. The catch: it must be administered in a clinical setting due to a small risk of pulmonary oil microembolism (POME), and it requires a 30-minute observation period after each injection.
Typical dosing: 750mg initially, then 750mg at 4 weeks, then every 10 weeks thereafter.
Cost: $1,000-1,500 per injection before insurance. Some insurance plans cover it, making it more affordable than it appears.
Best for: Men who want minimal injection frequency and don't mind clinic visits. Poor choice for anyone who wants precise dose control.
IM vs SubQ Injections
Intramuscular (IM): The traditional method. Testosterone is injected into a large muscle (glute, quad, or deltoid) using a 22-27 gauge needle, 1-1.5 inches long. Absorption is reliable and well-studied.
Subcutaneous (SubQ): Injected into the fat layer just beneath the skin, typically in the abdomen or outer thigh. Uses a shorter needle (27-30 gauge, 0.5 inch). Research published in the Journal of Clinical Endocrinology & Metabolism confirms SubQ injections produce equivalent testosterone levels to IM injections.
SubQ advantages: smaller needles, less post-injection pain, easier self-administration. The main downside is that some men develop small lumps at injection sites with larger volumes (over 0.3-0.4mL), so it works best with concentrated testosterone or smaller doses.
Topical Gels
Testosterone gels (AndroGel, Testim, Vogelxo) are applied daily to the skin, where testosterone absorbs through the dermal layers into the bloodstream.
How Gels Work
You apply a measured dose -- typically 50-100mg of testosterone in gel form -- to your shoulders, upper arms, or abdomen each morning. The testosterone absorbs over several hours, providing relatively steady blood levels throughout the day.
Advantages
- No needles required
- Daily application mimics the body's natural circadian testosterone rhythm (levels peak in the morning)
- Easy dose adjustments -- just change the amount you apply
Disadvantages
Transfer risk: This is the biggest concern. Testosterone gel can transfer to partners, children, or pets through skin contact. Cases of virilization in children exposed to testosterone gel have been documented by the FDA. You must wash your hands thoroughly after application and cover the application site with clothing.
Variable absorption: Absorption rates differ based on skin type, body fat percentage, sweating, and application technique. Some men absorb very little, requiring higher doses or a switch to another method. Studies show absorption can vary by 30-40% between individuals.
Cost: $200-500/month without insurance. Generic options have reduced this somewhat, but gels remain significantly more expensive than injectable testosterone.
Daily commitment: You must apply it every single day. Missing doses causes noticeable drops in levels within 24-48 hours.
Who Gels Work For
Men who genuinely cannot tolerate needles and have no children or partners at risk of transfer exposure. Some men also prefer gels because they can stop and clear the system within days -- useful for those who want to maintain the option of easy discontinuation.
Testosterone Creams
Compounded testosterone cream differs from commercial gels in concentration and formulation. Creams typically use a higher concentration (100-200mg/mL) applied to the scrotum or inner arm, allowing a smaller application area.
Scrotal Application
Scrotal skin has 5-8x higher absorption rates than other skin sites due to thinner epidermis and richer blood supply. This allows smaller volumes and more reliable absorption. Scrotal application also increases DHT conversion more than other application sites, which some clinicians consider beneficial for libido and sexual function.
Typical dosing: 50-100mg applied to the scrotum daily.
Key considerations:
- Must be compounded by a pharmacy (not commercially available)
- Cost: $50-150/month from compounding pharmacies
- Transfer risk is lower than gel due to the application site, but still present
- Some men experience irritation on scrotal skin
Testosterone Pellets (Testopel)
Pellets are small crystallized testosterone implants (each about the size of a grain of rice) inserted under the skin, typically in the upper buttock or hip area.
The Procedure
A clinician numbs the insertion area with local anesthesia, makes a small incision, and uses a trocar to implant 6-12 pellets into the subcutaneous fat. The procedure takes about 10 minutes. Pellets dissolve slowly over 3-6 months, releasing a steady stream of testosterone.
Typical dosing: 6-12 pellets (each containing 75mg), totaling 450-900mg per insertion.
Advantages
- Longest duration between interventions (3-6 months)
- Very stable blood levels with no daily or weekly action required
- No transfer risk
- No needles at home
Disadvantages
No dose adjustment: Once implanted, you can't easily change your dose. If levels are too high or you experience side effects, you have to wait for pellets to dissolve or have them surgically removed.
Pellet extrusion: In about 5-10% of cases, pellets work their way out of the insertion site before fully dissolving. This is more common in physically active patients.
Cost: $500-1,000 per insertion, typically every 3-4 months. Some insurance plans cover it.
Declining levels: Testosterone levels can drop significantly in the final weeks before re-insertion, causing a "roller coaster" effect that some men find unpleasant.
Oral Testosterone
Oral testosterone has historically been avoided due to liver toxicity concerns with older formulations (methyltestosterone). Newer options have addressed this.
Testosterone Undecanoate Capsules (Jatenzo, Tlando)
These FDA-approved oral formulations use a different absorption pathway -- they're absorbed through the lymphatic system rather than passing through the liver, significantly reducing hepatotoxicity risk.
Typical dosing: Jatenzo 158-396mg twice daily with food. Tlando 225mg twice daily.
Advantages:
- No needles, no topical transfer risk
- Convenient oral dosing
Disadvantages:
- Must be taken with food containing at least 30g of fat for proper absorption
- Twice-daily dosing with strict meal requirements is cumbersome
- Cost: $500-800/month without insurance
- Less clinical long-term data compared to injections
- Blood pressure increases have been noted in clinical trials
Best for: Men who can't tolerate injections or topicals and have good insurance coverage.
Nasal Testosterone (Natesto)
Natesto is a nasal gel applied three times daily (every 6-8 hours). Each actuation delivers 5.5mg of testosterone.
Typical dosing: 11mg (one actuation per nostril) three times daily, totaling 33mg/day.
Unique Advantage: HPG Axis Preservation
Natesto is the only TRT delivery method shown to potentially preserve endogenous testosterone production and fertility. Because of its rapid absorption and clearance, it may not fully suppress the HPG axis the way other methods do. Research published in the Journal of Urology (2019) demonstrated maintained sperm counts in most men using Natesto.
Disadvantages
- Three-times-daily dosing is impractical for many
- Nasal irritation, runny nose, and altered sense of smell
- Lower peak testosterone levels compared to injections
- Cost: $500-700/month
- Limited long-term data
Delivery Method Comparison
| Method |
Frequency |
Cost/Month |
Stability |
Transfer Risk |
Needles |
Dose Control |
| Cypionate/Enanthate (IM/SubQ) |
2-3x/week |
$30-80 |
High |
None |
Yes |
Excellent |
| Propionate |
Daily/EOD |
$40-100 |
Very High |
None |
Yes |
Excellent |
| Undecanoate (Aveed) |
Every 10 weeks |
$100-150* |
Moderate |
None |
Yes (clinic) |
Poor |
| Gel (AndroGel) |
Daily |
$200-500 |
Moderate |
High |
No |
Good |
| Cream (compounded) |
Daily |
$50-150 |
Moderate-High |
Moderate |
No |
Good |
| Pellets (Testopel) |
Every 3-6 months |
$125-333* |
High then declining |
None |
No |
Poor |
| Oral (Jatenzo) |
Twice daily |
$500-800 |
Moderate |
None |
No |
Moderate |
| Nasal (Natesto) |
3x daily |
$500-700 |
Low-Moderate |
None |
No |
Moderate |
*Averaged per month from per-procedure cost.
How to Choose Your Delivery Method
Start with injections if: You're comfortable with needles (or willing to try), want the best cost-to-efficacy ratio, and value precise dose control. This covers the vast majority of TRT patients.
Consider gels or cream if: You absolutely cannot do injections, live alone (no transfer risk), and can commit to daily application.
Consider pellets if: You travel frequently, want minimal maintenance, and are comfortable with a less adjustable approach. Many online TRT clinics now offer pellet insertion through local provider networks.
Consider oral if: You have good insurance coverage and can't tolerate injections, topicals, or pellets.
Consider Natesto if: Fertility preservation is your top priority and you're willing to dose three times daily.
Most experienced TRT clinicians will recommend starting with testosterone cypionate or enanthate injections. They're effective, affordable, well-studied, and give you the most control. If injections don't work for you, then explore alternatives. The right clinic will help you find the best delivery method for your situation -- see our independently scored clinic reviews.
Related Reading
This content is for informational purposes only and is not medical advice. Consult a qualified healthcare provider before starting any treatment.