Injections and topical gels/creams are the two most common TRT delivery methods — and choosing between them is one of the first decisions you'll make when starting TRT. There's no universally "better" option, but there's a better option for you based on your lifestyle, priorities, and physiology.
The Core Trade-Off
At a high level:
- Injections = lower cost, more control, needle required
- Gels/creams = no needles, daily application, higher cost, transfer risk
Testosterone Injections: The Details
How They Work
Testosterone cypionate or enanthate is dissolved in oil and injected intramuscularly (into a muscle like the glute or quad) or subcutaneously (into fat tissue, typically the abdomen or thigh). The testosterone depot releases gradually over days. Most protocols call for injections 1–2x per week.
Pros of Injections
- Cost: Compounded testosterone cypionate costs $30–80/month — the most affordable option
- Predictability: 100% bioavailability once injected (no absorption variability)
- Control: Easy to adjust dose precisely; effects of a dose change are visible in 1–2 weeks
- No transfer risk: No risk of accidental exposure to partners or children
- Long track record: Testosterone injections have decades of clinical evidence
Cons of Injections
- Requires self-injection (there is a learning curve, but most men adapt quickly)
- T levels fluctuate between injections (peaks and troughs) — though more frequent dosing (2x/week) minimizes this
- Requires supplies: syringes, needles, alcohol wipes
- Some men experience injection site soreness or oil embolism risk (rare)
Testosterone Gels and Creams: The Details
How They Work
Topical testosterone is applied daily to the skin (shoulders, upper arms, or inner thighs for creams). The active compound is absorbed transdermally into the bloodstream. Absorption rate is highly individual — typically 10–15% for gels, potentially higher for creams applied to scrotal skin.
Pros of Gels/Creams
- No needles — significant advantage for needle-averse individuals
- Stable daily testosterone levels (no injection troughs)
- Easy to apply and adjust
- Can be more discreet than managing injection supplies
Cons of Gels/Creams
- Transfer risk: Testosterone can transfer to partners and children through skin contact — proper hygiene and drying time minimize but don't eliminate this
- Variable absorption: Different individuals absorb 10–60% of applied dose; some men are poor responders
- Higher cost: $60–150/month for compounded versions; brand-name gels can run $300–600/month
- Daily commitment — missed applications matter more than with injections
- Some skin irritation possible
Head-to-Head Comparison
| Factor | Injections | Gels/Creams |
|---|---|---|
| Monthly Cost (compounded) | $30–80 | $60–150 |
| Needles Required | Yes | No |
| T Level Stability | Moderate (1–2x/week) | High (daily) |
| Transfer Risk | None | Yes (moderate) |
| Absorption Variability | None (100%) | High (10–60%) |
| Dose Adjustment | Very easy | Easy |
| Telehealth Availability | Widely available | Widely available |
| Daily Commitment | 1–2x/week | Daily |
Who Should Choose Injections?
- Cost is a primary concern
- You want maximum dose control
- You have children or a partner with hormone sensitivity concerns
- You're comfortable learning a basic skill (self-injection)
- You prefer a 1–2x/week schedule vs. daily application
Who Should Choose Gels or Creams?
- You have a needle phobia or significant aversion to injections
- You prefer the feeling of stable daily levels (no troughs)
- You live alone or can manage transfer risk responsibly
- Your physician recommends topical for your specific case
- You respond well to topical absorption (lab-confirmed)
Including pellets, patches, and nasal gel.
What About Compounded Testosterone Cream?
Compounded testosterone cream (particularly when applied to the scrotum) is gaining popularity due to potentially higher absorption rates and a lower volume of application. Some evidence suggests scrotal testosterone cream achieves higher DHT conversion, which some men prefer for libido effects. However, elevated DHT has its own considerations. Discuss this with your physician.
The Bottom Line
For most men starting TRT, injections are the recommended first choice due to cost, controllability, and predictability. If you have a significant needle aversion or your lifestyle strongly favors daily topical application, gels and creams are a fully legitimate alternative. The most important factor is choosing the method you'll actually use consistently.