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Best Steroid Cycle for Lean Bulking in 2025
Bulking doesn’t have to mean getting bloated or puffy. In 2025, the goal is lean bulking — packing on solid muscle mass with minimal fat gain. That’s where smart steroid cycles come in.
This guide reveals the best steroid cycle for lean bulking, including compounds, dosages, cycle structure, and support supplements to help you grow clean and stay dry.
🏗️ What Is Lean Bulking?
Lean bulking focuses on quality over quantity. Instead of gaining 20 pounds with 10 pounds of fat, a lean bulk aims to add:
- Dense muscle mass
- Minimal fat
- Strength and fullness
- Aesthetic proportion
💉 Best Steroid Stack for Lean Bulk (2025)
🔹 Testosterone Enanthate – The Foundation
- Dose: 300–500mg/week
- Cycle Length: 12 weeks
- Promotes size, strength, and recovery
🔹 Boldenone Undecylenate (Equipoise) – Lean Mass Builder
- Dose: 400–600mg/week
- Adds quality size and vascularity
- Increases appetite and endurance
🔹 Primobolan (Optional 3rd Compound)
- Dose: 400–600mg/week
- Clean gains, zero water retention
- Mild on liver and heart
🔁 Sample Lean Bulking Cycle (12 Weeks)
| Week | Test E | EQ | Primo (optional) | Arimidex (AI) |
|---|---|---|---|---|
| 1–12 | 400mg | 500mg | 400mg | 0.25mg EOD |
👉 Add liver support (NAC), cardio 2x/week, and a high-protein diet.
🛡️ On-Cycle Support Tips
- Use Arimidex or Aromasin to control estrogen
- Monitor blood pressure and RBC (EQ can raise hematocrit)
- Stay hydrated and track cholesterol
- Bloodwork before, mid, and after cycle
🔄 PCT After Lean Bulk
Start 14–18 days after your last injection.
- Clomid: 50/50/25/25 mg
- Nolvadex: 40/40/20/20 mg
- Duration: 4 weeks minimum
💡 HCG is optional (pre-PCT) if suppression was high.
🧠 Bonus: Nutrition for Lean Gains
- Eat in a small surplus (+250–500 kcal/day)
- Emphasize protein (1g/lb bodyweight)
- Clean carbs like rice, oats, and sweet potatoes
- Track your macros to avoid unwanted fat gain
