SARMs
Best SARMs for Cutting vs Bulking: A Complete UK Comparison (2025)
Apr
Choosing the Right SARM for Your Goal
Not all SARMs are equal, and not all goals are equal. The SARM that will transform your cutting phase is likely not the best choice for a lean bulk. This guide breaks down which SARMs are optimal for each goal and why — based on their pharmacological mechanisms, not anecdotal marketing.
Before reading further, make sure you’ve read our complete SARMs guide for a foundation understanding of how SARMs work.
Best SARMs for Cutting
1. Cardarine (GW-501516) — The #1 Cutting SARM
For sheer fat-burning effectiveness, nothing in the SARM category touches Cardarine. It activates PPAR-delta pathways, dramatically improving fat oxidation and endurance while preserving muscle mass during a caloric deficit. Users report being able to train harder and longer while consuming fewer calories — the ideal cutting scenario.
- Dose: 10–20 mg/day
- Cycle: 8–12 weeks
- Suppression: None (no PCT required)
- Best stacked with: Ostarine for muscle preservation
2. Ostarine (MK-2866) — Best for Muscle Preservation
During a caloric deficit, the body’s biggest enemy is muscle loss. Ostarine is uniquely effective at preventing catabolism (muscle breakdown) while allowing fat loss to proceed normally. It’s also the gentlest SARM on suppression, making it beginner-friendly.
- Dose: 15–25 mg/day
- Cycle: 8–12 weeks
- Suppression: Mild at lower doses
The Ultimate Cutting SARM Stack
Cardarine 20mg/day + Ostarine 20mg/day + MK-677 15mg/day. This combines fat-burning, muscle preservation, and improved sleep/recovery into one powerful steroid-free cutting protocol. An excellent alternative to the Clenbuterol + Anavar stack for users preferring to avoid traditional steroids.
Best SARMs for Bulking
1. RAD-140 (Testolone) — The Most Potent Bulking SARM
RAD-140 has the highest anabolic-to-androgenic ratio of any known SARM (90:1). Users on RAD-140 experience significant lean muscle gains, dramatic strength increases, and enhanced training aggression. It produces results closer to a low-dose testosterone cycle than any other SARM.
- Dose: 10–20 mg/day
- Cycle: 8 weeks maximum
- Suppression: Significant — PCT required (Nolvadex 20mg/day for 4 weeks)
2. LGD-4033 (Ligandrol) — Best for Lean Bulk
LGD-4033 is the closest thing in the SARM world to a mild testosterone cycle. It builds meaningful muscle mass with minimal fat gain and moderate water retention — ideal for a lean bulk. Most users gain 3–6 kg of lean mass on a proper LGD cycle.
- Dose: 5–10 mg/day
- Cycle: 8 weeks
- Suppression: Notable — mini-PCT recommended
3. MK-677 — The Bulk Enhancer
While not technically a SARM, MK-677 massively enhances any bulking stack through improved sleep quality, elevated GH/IGF-1, increased recovery, and dramatic muscle fullness. It doesn’t suppress testosterone, making it an ideal addition to RAD-140 or LGD stacks.
SARMs Cutting vs Bulking: Summary
| Goal | Top SARM Choice | Stack Partner |
|---|---|---|
| Fat loss / Cutting | Cardarine | Ostarine + MK-677 |
| Muscle preservation | Ostarine | Cardarine |
| Lean bulk | LGD-4033 | MK-677 |
| Maximum strength | RAD-140 | MK-677 |
SARMs vs Steroids for Cutting
Wondering how SARMs compare to traditional compounds like Clenbuterol or Anavar for cutting? See our full comparison: SARMs vs Steroids.
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Disclaimer: Research chemicals sold for research purposes. For educational use only.
