Testosterone Cypionate 300 mg/mL | 10 mL or 20 mL
What you are buying and why lifters choose it
Testosterone Cypionate is a single-ester injectable built for steady strength, lean mass, and predictable day-to-day training. The cypionate ester releases at a measured pace. Two injections per week hold levels smooth, reduce swings, and keep mood stable across long blocks. At 300 mg/mL, targets land with fewer total milliliters, which simplifies planning and leaves room for partner compounds when needed.
Ready to order. Go to Testosterone Cypionate. Check free shipping eligibility and recent reviews. Questions before checkout. Use Contact.
Product overview
| Attribute | Detail |
|---|---|
| Compound | Testosterone Cypionate |
| Also known as | Test C |
| Strength | 300 mg/mL |
| Formats | 10 mL or 20 mL multi-dose vial |
| Class | Injectable anabolic androgenic steroid |
| Ester | Cypionate, medium to long acting |
| Approx half-life | 6 to 8 days |
| Aromatization | Yes. Manage by labs only |
| Progestin activity | None meaningful |
| Primary goals | Lean size, strength, performance, stable look |
| Injection frequency | 2 times per week for smooth levels |
| Typical partners | EQ or Primo for clean phases. Mast E as a late cosmetic option |
| Kick-in window | Weeks 2 to 4 for full rhythm |
| PCT | Required after long-ester clearance |
What Testosterone Cypionate does in the gym and in the mirror
Drives strength with a calm daily feel when sleep, food quality, and hydration stay consistent.
Builds lean tissue with steady nitrogen balance and reliable recovery.
Holds water swings in a manageable range when sodium and potassium stay level.
Anchors long-ester stacks without schedule friction or complex timing games.
What is Testosterone Cypionate
A single testosterone molecule attached to a cypionate ester. Release is gradual from the depot. Split shots keep peaks lower and troughs higher for a stable curve.
How long it stays in your system
Meaningful activity extends roughly two weeks after the last injection based on the 6–8 day half-life. Plan PCT after that window.
Dosing principles
Start modest, confirm sleep and BP, then progress only if training and photos support it. The goal is productive weeks you can recover from, not runaway totals.
Common weekly ranges
| User | Conservative start | Common range | Upper end for advanced users* |
|---|---|---|---|
| Men | 300 mg per week | 300–600 mg per week | 650–750 mg per week |
| Women | Not typical | — | — |
*Upper-end values reflect community practice, not a recommendation. Most buyers hit goals inside the common range.
Injection rhythm with dosage-included schedules at 300 mg/mL
Supplies for a smooth experience. 3 mL Syringe. Alcohol Swabs. Rotate sites. Warm the vial. Push slowly.
Twice-weekly schedule
| Weekly total | Mon dose | Thu dose | mL per shot | Notes |
|---|---|---|---|---|
| 300 mg | 150 mg | 150 mg | 0.50 mL | Simple anchor start |
| 450 mg | 225 mg | 225 mg | 0.75 mL | Log lifts, sleep, waist |
| 500 mg | 250 mg | 250 mg | 0.83 mL | Mid-block range |
| 600 mg | 300 mg | 300 mg | 1.00 mL | Higher output, watch lipids |
| 750 mg | 375 mg | 375 mg | 1.25 mL | Advanced only, labs tight |
M-W-F schedule
Three smaller shots suit those who prefer tighter day-to-day feel.
| Weekly total | Mon | Wed | Fri | mL per shot |
|---|---|---|---|---|
| 300 mg | 100 mg | 100 mg | 100 mg | 0.33 mL |
| 450 mg | 150 mg | 150 mg | 150 mg | 0.50 mL |
| 600 mg | 200 mg | 200 mg | 200 mg | 0.67 mL |
| 750 mg | 250 mg | 250 mg | 250 mg | 0.83 mL |
Quick volume guide at 300 mg/mL
100 mg = 0.33 mL • 125 mg = 0.42 mL • 150 mg = 0.50 mL • 187.5 mg = 0.63 mL • 200 mg = 0.67 mL • 225 mg = 0.75 mL • 250 mg = 0.83 mL • 300 mg = 1.00 mL • 375 mg = 1.25 mL
Example schedules
14-week lean mass plan
| Week | Test C 300 | Partner | Notes |
|---|---|---|---|
| 1–2 | 450 mg per week, 225 mg = 0.75 mL Mon/Thu | — | Establish sleep, BP, electrolytes, step goal |
| 3–10 | 500–600 mg per week, 250–300 mg = 0.83–1.00 mL Mon/Thu | EQ 300–400 mg per week | Logbook, waist, weekly photos |
| 11–12 | 450 mg per week | — | Step down and maintain strength |
| 13–14 | 300 mg per week | — | Coast toward clearance, prep PCT |
12-week recomposition plan
| Week | Test C 300 | Partner | Diet and cardio focus |
|---|---|---|---|
| 1–4 | 300–450 mg per week, 100–150 mg M-W-F | — | Small deficit, protein 2.0 g/kg |
| 5–8 | 600 mg per week, 200 mg = 0.67 mL M-W-F | Primo E 300–400 mg per week | Hold lifts, steady electrolytes |
| 9–12 | 300–450 mg per week | — | Exit ramp. Labs decide any AI step |
Estrogen management the adult way
Testosterone aromatizes. Avoid reflex AI dosing. Use labs and symptoms for small, deliberate moves. Reassess in 10–14 days before changing again.
If tissue sensitivity shows while you adjust totals, a SERM shields during that window.
Prefer structured help on dose, timing, and labs. Add the Post-Cycle Therapy Protocol at checkout.
Side effects and how to manage them
Blood pressure and hematocrit
Track BP at home. Schedule periodic CBCs. Hydrate daily. Salt and potassium intake stay consistent.
Lipids
Easy cardio two to three sessions per week helps HDL. Favor unsaturated fats and fiber. Recheck lipids mid-block when totals rise.
Androgenic effects
Acne or oil tends to climb with totals. Pull back before stacking additional items. Keep skin routine simple and regular.
Appetite and GI comfort
Hold fiber steady. Favor whole foods. Avoid chasing scale weight with low-quality calories.
Suppression
Plan the exit. Long esters require a gap before PCT begins.
Post-cycle therapy timing
Begin SERM therapy about 10–14 days after the final injection to allow clearance.
| Weeks | Nolvadex | Clomid | Notes |
|---|---|---|---|
| 1–2 | 40 mg daily | 50 mg daily | Start 10–14 days post last shot |
| 3–4 | 20 mg daily | 25–50 mg daily | Taper guided by labs and symptoms |
For a mapped plan with dates and reminders, use the PCT Protocol.
Stacking logic that stays clean
Keep Test C as the anchor at the lowest effective total.
Add one lean partner if the goal requires it. EQ pairs well for appetite and work capacity. Primo suits dry, cosmetic phases.
If a finisher is desired near the end, Masteron Enanthate is a common option when labs support it.
Skip overlapping methylated orals. If an oral bridge is used, keep it brief and non-overlapping.
Nutrition and training that let Test C work
Protein 1.8–2.2 g per kg split across 3–5 meals.
Carbohydrates timed around training to fuel performance and recovery.
Dietary fat at least 0.6 g per kg to support hormones and joints.
Electrolytes consistent day to day for predictable water and BP.
Cardio two or three easy sessions per week to support lipids without flattening training.
Lifting with clean reps, a stable exercise menu, and a stepwise increase in weekly volume.
Who should choose Testosterone Cypionate and who should not
Choose Test C if you want a stable weekly rhythm, simple stack logic, and reliable strength with manageable water when nutrition stays clean.
Skip Test C if narrow on-off control or frequent micro-adjustments are the priority. Short esters fit those timelines better.
Why Canadians buy Test C from GHCanada
In-country shipping with predictable timelines and support through Contact.
300 mg/mL strength lowers volume per injection and simplifies planning.
Clear labeling, recognizable formats, and one checkout for ancillaries, supplies, and PCT.
Confidence from recent reviews and transparent shipping policy.
Quick answers
How often do you inject Testosterone Cypionate
Two injections per week keep levels smooth.
Do you always need an AI
Use labs. Start with the smallest effective dose if support is required, then retest in 10–14 days.
When do you start PCT
Roughly 10–14 days after your final long-ester injection.
Is Test C good for a recomp
Yes, with protein high, electrolytes steady, and a logged progression in the gym.
Dosing schedule visualizations with dosages
Twice-weekly calendar at 300 mg/mL
| Week | Mon dose | Thu dose | mL each | Notes |
|---|---|---|---|---|
| 1–2 | 150 mg | 150 mg | 0.50 mL | Baseline BP, sleep, electrolytes |
| 3–8 | 225–300 mg | 225–300 mg | 0.75–1.00 mL | Log lifts, waist, photos |
| 9–10 | 200–250 mg | 200–250 mg | 0.67–0.83 mL | Hold strength, review labs |
| 11–12 | 150–225 mg | 150–225 mg | 0.50–0.75 mL | Exit ramp and PCT prep |
| 13–14 | — | — | — | Clearance window toward PCT start |
M-W-F calendar at 300 mg/mL
| Week | Mon | Wed | Fri | mL each | Notes |
|---|---|---|---|---|---|
| 1–4 | 100–150 mg | 100–150 mg | 100–150 mg | 0.33–0.50 mL | Easy on-ramp |
| 5–8 | 200 mg | 200 mg | 200 mg | 0.67 mL | Mid-block focus |
| 9–12 | 100–150 mg | 100–150 mg | 100–150 mg | 0.33–0.50 mL | Step down to exit |
Related items to complete your order
SERM and planning. Nolvadex and the Post-Cycle Therapy Protocol
Injection supplies. 3 mL Syringe and Alcohol Swabs





Dan –
That is some smooth high quality test right here !
Mike Clinth –
The best site for this product! I get it fast in 2-4 days!
alexander0800 (verified owner) –
Ordered on the 17th and received on the 23rd. I live in Florida so its a good distance. Easy purchasing and good site. Price could be lower but im not complaining. I can’t attest to its strength but ao far this has been a good experience.
Thank you
Brendan W. –
Have been running Test Cyp from GHCanada for almost a year of TRT now and the consistency is what stands out most. Bloodwork comes back clean and predictable, every batch holds the labeled mg/mL when I get private labs done, and the oil is smooth — never had a PIP issue beyond the occasional warm spot for a day. The vials are clearly labeled, sealed properly, and the COA matched what I had verified independently. Pinning twice a week (200mg total) keeps my trough levels stable in the 700-800 range. Shipping was domestic and fast — 4 days to Manitoba in plain packaging. Will keep ordering. Solid go-to for anyone doing legitimate TRT under medical guidance.