Heavy Mass Bulking Cycle: Testosterone + Deca + Dianabol + PCT (Androlex — 10 Weeks)

Endocrine Pharmacodynamics of the Classic Heavy Mass Bulking Protocol

Engineered for experienced strength athletes, the Heavy Mass Bulking Cycle by Androlex combines three biologically complementary anabolic-androgenic agents to drive massive nitrogen retention and muscular hypertrophy. Utilizing a core androgenic foundation of Testosterone Enanthate at 500 mg weekly, this stack elevates systemic serum androgen levels while counteracting HPTA down-regulation. The addition of Nandrolone Decanoate at 200 mg weekly provides continuous Type I collagen synthesis, articular joint relief, and profound anabolic signaling through high-affinity androgen receptor binding. By saturating cellular satellite recruitment, this stack delivers unprecedented volumetric tissue growth, dense myofibrillar density, and elevated recovery thresholds throughout the ten-week regime.

To eliminate the physiological latency associated with long ester accumulation, oral Methandienone (Dianabol) is integrated at 30 mg daily as an immediate five-week kickstart. This rapid upregulation of hepatic glycogenolysis and intracellular hydration induces substantial early-phase strength leaps. Selected from our elite Bulking Steroid Cycles, this pack integrates pharmaceutical-grade Anastrozole to carefully moderate aromatase enzyme conversion, preventing high estrogen manifestations like excessive extracellular water retention and gynecomastia without sacrificing the anabolic synergy necessary for rapid skeletal muscle accretion.

Complete Cycle Bundle Package Contents

• 2 × Testosterone Enanthate Vial – Androlex | 10 ml | 250 mg/ml
• 1 × Nandrolone Decanoate Vial - Androlex | 10 ml | 200 mg/ml
• 1 × Androlex Methandienone 10 mg/tab | 100 Tabs
• 1 × Androlex Anastrozole 0.5 mg/tab | 60 Tabs
• 1 × Androlex Clomiphene citrate 25 mg/tab | 60 Tabs

10-Week Administration & PCT Dosing Schedule

Administration Protocol, Estrogen Management & HPTA Restoration

Precision dosing remains paramount across this ten-week mass protocol. Administer 500 mg of Testosterone Enanthate weekly split into two distinct 250 mg (1 ml) deep intramuscular injections alongside 200 mg (1 ml) of Nandrolone Decanoate, which can be combined into a single syringe to minimize injection trauma. Ingest Methandienone daily at 30 mg divided across two to three equal doses with meals to maintain consistent peak serum concentrations while managing digestive tolerance. To curb circulating estradiol driven by testosterone and methandienone aromatization, administer Anastrozole at 0.5 mg every other day throughout the entire active 10-week cycle phase.

Because long esters remain bioavailable for multiple weeks post-injection, precise clearance timing is mandatory before initiating endogenous endocrine recovery. As detailed across our foundational Steroid Cycles guides, initiate your Clomiphene citrate PCT precisely at Week 13—allowing 14 to 21 days for androgen metabolites to clear hepatic-renal pathways. Ingest Clomid at 50 mg daily throughout Weeks 13–14 to stimulate hypothalamic GnRH and pituitary LH secretion, tapering down to 25 mg daily during Weeks 15–16 to stabilize endogenous testosterone output and lock in newly acquired mass.

Key Anabolic Advantages & Performance Outcomes

• Maximal Myofibrillar Hypertrophy: Synergistic pairing of three classic mass agents creates profound intramuscular nitrogen retention and rapid protein accretion for dense, permanent contractile mass.
• Joint Cushioning & Articular Recovery: Nandrolone Decanoate accelerates systemic collagen synthesis and improves synovial fluid retention, providing crucial connective tissue protection under maximal structural loading.
• Explosive Early-Phase Strength Surges: Oral Dianabol delivers immediate hepatic glycogen loading, neuro-muscular drive, and dramatic strength increases within the initial 7–10 days of the cycle.
• Comprehensive Hormonal Protection & PCT: Complete on-cycle estrogen management via Anastrozole alongside pharmaceutical Clomiphene citrate ensures minimal water bloat and rapid post-cycle endocrine normalization.