Sustanon + Deca + Dianabol — Intermediate Bulking Stack

Intermediate Bulking Stack — Full Protocol

This is the classic intermediate mass cycle: Sustanon 270 as the testosterone base, Deca 300 for additional anabolic volume and joint support, and Dianabol 20 as an oral kickstart in the first four weeks. The combination of these three compounds has been a cornerstone of competitive bodybuilding mass phases for decades — each compound adds something distinct to the cycle.

Sustanon 270 is a five-ester testosterone blend providing both fast-acting and long-lasting testosterone release. Compared to a single-ester testosterone, Sustanon reaches effective blood levels faster while still maintaining stable concentrations throughout the week. At 540 mg/week (2 ml) the anabolic effect is substantial — well above beginner territory but within the manageable range for a user with one or two previous cycles.

Deca 300 (Nandrolone Decanoate) is the second anabolic compound in this stack. At 300 mg/week it adds significant lean mass independently of testosterone, improves nitrogen retention, and is well-known for its positive effect on joint comfort during heavy training. Deca has a slow onset — it takes 4 to 5 weeks to reach full blood concentration — which is exactly why Dianabol is used as a kickstart during this loading window.

Dianabol 20 bridges the gap. At 30 mg/day during weeks 1 through 4, it delivers immediate strength and mass while Sustanon and Deca are still building to full effect. By week 5, when both injectables are fully active, the oral phase ends and the injectable compounds carry the cycle through to week 14.

What Is Included

• Sustanon 270 — Testosterone blend 270 mg/ml, 10 ml vial × 3
• Deca 300 — Nandrolone Decanoate 300 mg/ml, 10 ml vial × 2
• Dianabol 20 — Methandienone 20 mg/tab, 100 tabs × 1

On-cycle support (estrogen and prolactin control) and post-cycle therapy are available separately in the On-Cycle & PCT Stacks section. Note: Nandrolone raises prolactin — Cabergoline is recommended alongside this stack and can be added separately.

Full 14-Week Schedule

Week	Sustanon 270	Deca 300	Dianabol 20
1–4	540 mg/week (1 ml Mon + 1 ml Thu)	300 mg/week (1 ml Mon)	30 mg/day with meals
5–14	540 mg/week (1 ml Mon + 1 ml Thu)	300 mg/week (1 ml Mon)	—

Injection Protocol

Inject 1 ml of Sustanon 270 on Monday and 1 ml on Thursday each week. Inject 1 ml of Deca 300 on Monday (can be combined in the same syringe as Sustanon). This keeps the weekly injection schedule to two days with a single additional draw on Monday. Total Sustanon used: 28 ml over 14 weeks — 3 vials cover the full cycle. Total Deca used: 14 ml over 14 weeks — 2 vials cover the full cycle exactly.

Dianabol Kickstart

Take 30 mg of Dianabol 20 daily during weeks 1 through 4. Split as 20 mg in the morning and 10 mg in the afternoon with food. The purpose of this oral phase is to provide immediate anabolic effect while Sustanon and Deca reach full concentration. By week 4 the injectables are approaching peak blood levels — at week 5 the Dianabol phase ends and the full injectable stack drives the cycle through to completion.

Expected Timeline of Results

• Week 1–2: Rapid strength and weight increases from Dianabol, improved pumps and recovery
• Week 3–4: Peak Dianabol effect, Sustanon fully active, early Deca contribution beginning
• Week 5–6: Dianabol ends — some water from Dbol clears, Deca approaching full effect
• Week 7–10: Both injectables fully active — steady lean mass accumulation, joint comfort improved
• Week 11–14: Consolidation and peak mass phase — strength and size at their highest point

Post-Cycle Notes

Deca 300 has a very long half-life (approximately 15 days). After the last injection wait 3 weeks before starting PCT to allow full clearance. This is longer than standard testosterone-only cycles. Full PCT bundles including HCG, Clomid, and Nolvadex are available in the On-Cycle & PCT Stacks section.