Bulking Stack vs Cutting Stack: Which SDI Labs® Stack Fits Your Goal?

Most lifters train in phases: a bulk to build muscle, and a cut to lose fat while keeping it. A stack bundles the products that fit one phase into a single order. This guide explains the difference between a bulking stack and a cutting stack, what is in each SDI Labs® stack, and how to match one to the phase you are in.

First, What Does "Legal Steroid" Mean?

Anabolic steroids are controlled drugs. In the United States they are Schedule III controlled substances (21 CFR 1308.13(f)), and it is illegal to buy or possess them without a valid prescription.

The products in our stacks are not steroids. They are dietary supplements, sold legally over the counter. "Legal steroid stack" is simply the everyday term people search for when they want legal supplements designed to support their training.* For a product-by-product comparison, see our Best Legal Steroids buyer's guide.

Bulking vs Cutting: Pick Your Phase First

Before you pick a stack, pick your phase. Our guide Bulking vs Cutting: Should You Bulk or Cut First? walks through it in detail. The short version:

• Bulking means eating in a small calorie surplus while training hard, to gain muscle while keeping fat gain limited. It is not a "dirty bulk."
• Cutting means eating in a calorie deficit while you keep lifting and keep protein high, to lose fat while holding on to muscle.
• Recomp means eating around maintenance calories. It suits newer lifters and people returning after a long break. If that is you, you may not need a phase-specific stack yet.

In this article, "bulk" and "cut" mean diet and training phases, nothing more.

The Bulking Stack: Extreme Mass Stack

The Extreme Mass Stack is built for a bulking phase. According to the product page, it includes:

• 4 bottles of D-BOL®
• 2 bottles of Anodrol®

D-BOL® and Anodrol® are our two bulking formulas. Together they are designed to support strength and training intensity while you bulk.* Pair the stack with a small calorie surplus, enough protein and a progressive training plan.

Choose a bulking stack if: you are already fairly lean, you are eating in a small surplus, and your main goal right now is building muscle and strength.

The Cutting Stack: The Combination Cutting Cycle

The Combination Cutting Cycle is our cutting stack (see it here). According to the product page, it includes:

• 4 bottles of Winni-V®
• 4 bottles of Equidren®
• 4 bottles of Masterbolan®

Winni-V® and Masterbolan® are our cutting formulas. Equidren® is used in both phases, and it is most often run as part of a cutting stack alongside those two. Together they are designed to support strength, recovery and training performance while you diet.*

Choose a cutting stack if: you are carrying more body fat than you want, you are eating in a deficit, or you are getting ready for a show, a photo shoot or summer.

How to Choose the Right Stack

Ask yourself three questions:

1. Am I eating in a surplus or a deficit? Surplus means a bulking stack. Deficit means a cutting stack.
2. What is my main goal for the next few months? More muscle and strength, or less body fat?
3. What does my budget allow? Stacks bundle several bottles. If you would rather start with a single product, the buyer's guide helps you pick one.

You can see every bulking and cutting stack side by side on our stacks page.

Common Stack Mistakes to Avoid

• Using a bulking stack in a deficit. If you are dieting, a cutting stack matches your goal better.
• Skipping the label. Every bottle lists its own directions. Follow them, and do not go above the amounts listed.
• Changing everything at once. Start your stack when your training and diet are already steady, so you can tell what is working.
• Expecting a stack to replace effort. Supplements support your training.* They do not replace it.
• Ignoring recovery. Hard training without sleep and rest days stalls progress in any phase.

Single Products vs Stacks

Not everyone needs a full stack. If you are new to SDI Labs® products, starting with a single bottle is a sensible way to see how a product fits your routine. Lifters who are bulking often start with D-BOL®, and lifters who are cutting often start with Winni-V® or Masterbolan®. A stack makes more sense once you know your phase and want everything for it in one order.

Talk to your physician before using any dietary supplement, especially if you take medication or have a medical condition.

Frequently Asked Questions

Are legal steroid stacks actually steroids? No. They are dietary supplements. Anabolic steroids are controlled drugs and are not in any of our products.

What is the best bulking stack? For a bulk, the Extreme Mass Stack combines D-BOL® and Anodrol®, our two bulking formulas.

What is the best cutting stack? For a cut, the Combination Cutting Cycle combines Winni-V®, Equidren® and Masterbolan®.

Can I bulk and cut at the same time? That is called a recomp, and it works best for newer lifters or people returning after a break. Most lifters do one phase at a time. Read Bulking vs Cutting to see which fits you.

Where can I compare all the stacks? Visit our stacks page to see every bulking and cutting stack.

The Bottom Line

Pick your stack by your phase. Bulking? Start with the Extreme Mass Stack. Cutting? Go with the Combination Cutting Cycle. Not sure which phase you are in? Read Bulking vs Cutting first.

Sources

• 21 CFR 1308.13(f) – anabolic steroids are Schedule III controlled substances.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.