Escrito por Alexander · Entrenador Personal Certificado ISSA
PCT (Post Cycle Therapy) is the most important part of any steroid cycle — and the most neglected. Many beginners and even intermediate users lose much of their gains, feel awful for months, and take a long time to recover natural testosterone simply because their PCT was incomplete or non-existent. This guide covers everything: why it’s mandatory, when to start, the best protocols, doses and duration.
Educational information
This is general information, not medical advice. Clomid, Nolvadex and HCG have side effects and should be used responsibly, ideally with bloodwork and a doctor’s guidance.
What is PCT and why is it mandatory?
When you use exogenous anabolics (testosterone, Deca, Trenbolone, Dianabol, etc.), your body detects the excess and shuts down its own natural production — this is HPTA suppression (Hypothalamus–Pituitary–Testes axis).
After the cycle ends, your natural testosterone can stay very low for weeks or months, causing:
Rapid loss of strength and muscle size
Extreme fatigue and low energy
Loss of libido and erectile issues
Low mood, irritability, mood swings
Increased body fat
PCT quickly stimulates your body to resume producing testosterone, minimizes lost gains, and helps you recover as fast as possible.
Golden rule: if you ran a cycle, you always do PCT. No exceptions.
When to start PCT
Timing depends on the half-life of your last compound:
Testosterone Enanthate / Cypionate: wait 14 days after the last injection.
Sustanon: wait 14–18 days.
Deca Durabolin: wait 18–21 days (long half-life).
Dianabol or orals: start 2–3 days after the last dose.
Example (12-week Enanthate cycle): last injection week 12 (day 84) → start PCT on day 98.
PCT isn’t comfortable. You may get mood swings, blurred vision or “flashes” (especially with Clomid), headaches, fatigue, and low libido at first (it improves).
To get through it better: sleep 8+ hours, eat high-protein at maintenance (don’t crash-diet), train lighter for the first 2–3 weeks, take B-complex and zinc, and avoid alcohol.
Keeping your gains during PCT
Diet: maintenance or a slight surplus for the first 4 weeks — no aggressive cut.
Training: reduce volume and intensity the first 2 weeks, then progress again.
Sleep: critical — hormonal recovery depends heavily on deep sleep.
Supplements: creatine, zinc, vitamin D, omega-3, a good multivitamin.
Recommended blood work
Before the cycle: total & free testosterone, estradiol, full blood count, lipids, liver & kidney function.