The testosterone delivery debate usually centers on one question: injections or cream? Both work. Both have clinical evidence. But they produce meaningfully different hormone profiles, and the best choice depends on your specific physiology and preferences — not on which one the clinic defaults to prescribing.
Injections vs Cream: The Core Comparison
| Factor | Injectable Testosterone | Testosterone Cream/Gel |
|---|---|---|
| Absorption | 100% (intramuscular depot) | ~10% (transdermal, variable) |
| DHT levels | Moderately elevated | Significantly elevated (5-AR in skin converts T to DHT locally) |
| Hematocrit effect | Moderate elevation | Lower elevation (slower, lower peaks) |
| E2 conversion | Dose-dependent peak | More consistent, fewer peaks |
| Convenience | 1-2x/week injection | Daily application (3-5 minutes drying time) |
| Transfer risk | None | Present — can transfer to partner/children via skin contact |
| Steady state | 2-3 weeks | 3-5 days (faster stabilization) |
| Insurance coverage | Almost always covered | Often requires separate prior authorization |
| Cost (cash) | See current pricing | $50-$200/month (brand vs compounded) |
When Cream Is Better
- Needle aversion or injection anxiety
- High aromatase activity with injectables (cream’s stable levels may reduce E2 peaks)
- Elevated hematocrit with injectable TRT (cream produces lower peaks → lower HCT stimulation)
- Desire for daily application routine similar to other medications
- Travelers who prefer not carrying injection supplies internationally (cream in checked luggage is simpler)
When Injections Are Better
- Predictable dosing (100% absorption vs variable transdermal absorption)
- Lower cost
- No transfer risk to family members
- DHT elevation is moderate vs cream’s significant elevation (relevant for hair loss concern)
- Once or twice weekly application vs daily
- Showering/swimming/sweating irrelevant to absorption
The DHT Distinction (Often Missed)
The skin contains significant 5-alpha reductase activity that converts testosterone to DHT during transdermal absorption. Cream/gel users typically have 2-5x the DHT elevation of injection users with the same total testosterone levels. Men genetically predisposed to hair loss should be aware: cream may accelerate androgenetic alopecia more than injections at equivalent doses.
Viking prescribes both delivery methods and helps patients choose based on individual physiology, not a clinic default. (210) 826-8900 | vikingalternative.com
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