Case Study: 12 Weeks on Test & Deca – Real Results

This case study explores the typical results and experiences of a user who completed a 12-week cycle of Testosterone Enanthate and Deca-Durabolin (Nandrolone Decanoate). This is one of the most popular bulking stacks for beginners and intermediates due to its powerful anabolic effects, joint support, and relatively manageable side effects when dosed properly.

Cycle Details

• Testosterone Enanthate: 500 mg/week (Weeks 1–12)
• Deca-Durabolin: 400 mg/week (Weeks 1–12)
• Aromasin: 12.5 mg every other day (on-cycle estrogen control)
• HCG: 250 IU twice weekly (Weeks 3–12)
• PCT: Nolvadex and Clomid starting Week 14

Week-by-Week Results

Weeks 1–4:

• Noticeable strength increase by Week 3
• Weight gain: ~5–7 lbs, mostly water and glycogen
• Slight increase in appetite and pump during workouts
• Mild water retention and fuller muscles
• Libido high; mood uplifted

Weeks 5–8:

• Rapid muscle growth: +5–8 lbs of lean mass
• Big jumps in compound lifts (bench, squat, deadlift)
• Improved joint comfort (thanks to Deca)
• Slight acne on back and shoulders
• Water retention moderated with consistent Aromasin use

Weeks 9–12:

• Plateau in weight gain, but more visible muscle density
• Muscles appear rounder and fuller
• Slight increase in blood pressure
• Testicular shrinkage noticeable but managed with HCG
• Libido starts to drop slightly (possible Deca suppression)

Post-Cycle Therapy (Weeks 14–18):

• Clomid: 50/50/25/25 mg daily
• Nolvadex: 40/40/20/20 mg daily
• Weight stabilizes; small loss in water and glycogen
• Retained ~10–12 lbs of lean muscle overall
• Strength slightly decreased but remained above baseline
• Libido and mood gradually returned to normal

Final Results and Summary

• Total weight gained: ~18 lbs
• Lean muscle retained post-cycle: ~10–12 lbs
• Strength: Major increases, especially in compound lifts
• Side effects: Mild acne, water retention, testicular shrinkage (reversed post-cycle)
• Recovery: Smooth with proper PCT and on-cycle HCG use

Conclusion

A 12-week Test and Deca cycle can produce excellent bulking results with manageable side effects if properly supported. The key is using correct dosages, monitoring estrogen, and not skipping PCT. This stack offers substantial gains in size, strength, and joint comfort—ideal for lifters looking to push beyond their natural limits.