The OG Stack

What is the OG Stack by Legacy Laboratories?

The OG Stack is a powerhouse combination designed for experienced bodybuilders and elite athletes who want to achieve a dry, shredded, and powerful physique. With four legendary compounds — Trenbolone Acetate, Primobolan, Winstrol, and Sustanon — this advanced stack delivers an unmatched synergy of strength, hardness, lean muscle, and performance.

This stack is ideal for users who want the full spectrum: mass from Sustanon, vascularity from Primo, raw conditioning from Tren Ace, and the finishing polish of Winstrol. Whether prepping for a show or undergoing an aggressive transformation phase, the OG Stack lives up to its name.

Included Compounds

• 1 × Legacy Laboratories Trenbolone Acetate (100 mg/ml – 10 ml)
• 1 × Legacy Laboratories Primobolan (Methenolone Enanthate) (100 mg/ml – 10 ml)
• 1 × Legacy Laboratories Winstrol (50–100 mg/tab – oral)
• 1 × Legacy Laboratories Sustanon 250 (250 mg/ml – 10 ml)

Stack Benefits

• Unmatched muscle density and hardness
• Dry, vascular physique with minimal water retention
• Explosive strength and recovery gains
• Balanced anabolic/androgenic output from Test + Primo + Tren
• Ideal for high-end recomposition or cutting phases

Suggested Usage

• Trenbolone Acetate: 300 mg/week (e.g., 100 mg EOD)
• Primobolan: 500 mg/week (e.g., 2 x 250 mg injections)
• Winstrol: 50–100 mg/day (oral, split AM/PM)
• Sustanon: 750 mg/week (e.g., 3 x 250 mg/week)
• Cycle Duration: 8 weeks (advanced users may extend to 10)
• Support: Aromasin 12.5 mg EOD, Cabergoline 0.25 mg 2x/week, NAC or TUDCA

8-Week OG Stack Cycle Plan

Post Cycle Therapy (Recommended)

• Start: 14–21 days after last Sustanon injection
• Clomid: 50/50/25/25 mg (Weeks 9–12)
• Nolvadex: 40/40/20/20 mg (optional, Weeks 9–12)
• Bloodwork advised before and after cycle

Common Questions About the OG Stack

Who should use the OG Stack?

This stack is built for experienced users who want serious results — whether it’s stepping on stage or pushing your limits. Not recommended for beginners due to the presence of Tren and Winstrol.

How fast can I expect results?

You’ll notice strength and aggression by Week 1 (from Tren Ace and Winstrol), muscle density by Week 2–3, and significant changes to physique and hardness by Week 4 onward.

Is liver protection necessary?

Yes. Winstrol is hepatotoxic. Support with TUDCA or NAC throughout the cycle. Stay well hydrated and consider bloodwork mid-cycle.

Can I run this for 10 weeks?

Yes, if you are experienced and using full support. Monitor side effects and liver enzymes closely, especially with Winstrol in the mix.