- They’re the same hormone with slightly different esters. In practice, they work almost identically.
- Cypionate lasts a little longer (about 5 to 8 days vs 4 to 5), but both are injected once or twice a week.
- The real differences are carrier oil (relevant if you react to one), what your pharmacy or source stocks, and price per mg.
- Switching between them is simple: use the same weekly amount and the same schedule.
“Should I use enanthate or cypionate?” is one of the most common questions from Canadians starting testosterone, whether it’s prescribed or not. The honest answer is that it matters much less than people think. This guide explains the small differences that do exist, and how to choose.
Side by side
| Enanthate | Cypionate | |
|---|---|---|
| Ester length | 7 carbons | 8 carbons |
| Half-life | About 4 to 5 days | About 5 to 8 days |
| Testosterone per 100 mg | About 72 mg | About 70 mg |
| Typical injections | Once or twice a week | Once or twice a week |
| Common pharmaceutical oil | Sesame | Cottonseed |
| Canadian pharmacy brands | Generic testosterone enanthate | Depo-Testosterone, generics |
Half-life: the difference that barely matters
Cypionate’s extra carbon makes it release a little more slowly. On paper that means slightly more stable levels; in practice, with weekly or twice-weekly injections, blood levels on the two are almost indistinguishable. Studies comparing them find no meaningful difference in effects. What matters far more is how often you inject: twice a week gives steadier levels than once every two weeks, whichever ester you use.
Testosterone per milligram
Part of every milligram is ester rather than hormone. Enanthate is about 72% testosterone and cypionate about 70%, so 200 mg of either delivers around 140 to 144 mg of actual testosterone. That 2% gap is smaller than the normal variation between batches and isn’t worth adjusting for.
Carrier oils and reactions
The oil is the most practical difference. Pharmaceutical cypionate is usually made in cottonseed oil and enanthate in sesame oil, though non-pharmaceutical products vary. If you get unusual redness, itching or pain after injection that doesn’t settle, a reaction to the carrier oil is one possibility, and switching esters (and so oils) sometimes helps. Persistent or worsening pain, heat or swelling needs a doctor, since infection is the bigger concern.
Cost in Canada
At the time of writing, our prices per 10 ml vial at 250 mg/ml are:
- Genetix cypionate: about $75 (3 cents per mg)
- Genetix enanthate: about $80
- Zionova enanthate or cypionate: about $105
Price per mg is usually the deciding factor for people choosing between them. Live prices are on the injectables page.
How to choose
- If you’re prescribed one, stay on it unless your doctor suggests switching.
- If you’ve reacted to one, try the other.
- Otherwise, pick on price and availability. Both work the same.
Switching mid-way: keep the same weekly amount and injection days. Levels stay effectively the same.
What doesn’t change
Whichever you choose, the side effects and monitoring are identical: estradiol, hematocrit, blood pressure, cholesterol and natural testosterone suppression. Get bloodwork before, during and after use through your family doctor or LifeLabs or Dynacare. Our single-compound guides go deeper: testosterone enanthate and testosterone cypionate.
Frequently asked questions
Is cypionate stronger than enanthate?
No. They contain almost the same amount of testosterone per mg and produce the same effects at the same weekly amount.
Can I switch from enanthate to cypionate?
Yes. Keep the same weekly amount and schedule; blood levels stay effectively unchanged.
Which one hurts less?
Neither consistently. Pain depends more on volume, technique, the carrier oil and the product than on the ester.
Which one do Canadian doctors prescribe?
Both. Cypionate (Depo-Testosterone and generics) and enanthate are both prescribed for low testosterone in Canada.
Products mentioned in this guide
This article is general information for adults in Canada, not medical advice. Talk to a doctor or pharmacist before using any prescription drug, anabolic steroid or research compound, and get bloodwork done. If you’re in crisis, call or text 9-8-8 (Suicide Crisis Helpline) any time.
