SARMs stacks 2026 – best combinations for bulking and cutting
SARMs stacks 2026 - best combinations for bulking and cutting
08 Mar
We’ve put together a guide to SARM stacks for those of you who want to understand how selective androgen receptor modulators can be combined for specific training goals. Here we go through stack combinations for bulking, cutting and recomp.
Important: SARMs are experimental chemicals not approved for human consumption. This article is for educational purposes only. Always consult a doctor before using any substance.
What are SARM stacks and why stack?
We understand that those interested in training are thinking about how to optimize results by combining substances. A SARM stack is a combination of two or more selective androgen receptor modulators that work synergistically to achieve specific training goals faster than a single substance.
Each SARM has unique properties – some focus on muscle growth, others on fat loss or endurance. Combining SARMs creates a synergistic effect that addresses multiple aspects of your transformation. The main reason for stacking is to achieve better results with lower individual doses, which theoretically reduces the risk of side effects. We recommend that you understand the basic principles before considering any stack protocol.
Bulking stack – RAD-140 and MK-677 combination
We recommend the RAD-140 and MK-677 combination for aggressive muscle growth. RAD-140 (Testolone) is known for its potent androgen receptor binding affinity, while MK-677 (Ibutamoren) stimulates growth hormone release and increases insulin-like growth factor-1.
RAD-140: The Anabolic Powerhouse. We see RAD-140 as one of the most potent SARMs for pure muscle mass. This substance is selective for androgen receptors in skeletal muscle, which promotes muscle protein synthesis. Many users report markedly increased strength within two to three weeks along with building lean mass. RAD-140 signals the body to prioritize muscle protein building. With proper training and nutrition, users can expect two to three pounds of muscle gain per month in the first two months. We emphasize that these results vary depending on exercise volume, nutritional intake, and genetic response.
MK-677: The hormone stimulation. We use MK-677 in this stack to maximize hormone stimulation. MK-677 stimulates the pituitary gland to release growth hormone by binding to ghrelinin receptors. This leads to increased lipolysis, improved muscle protein synthesis and better recovery. Many appreciate MK-677’s ability to increase appetite – a critical factor during bulking. MK-677 helps consume the excess calories required. Users report improved sleep quality, faster healing and increased muscle tone.
Dosing for bulking. We recommend (for educational purposes only) RAD-140: 8-12 mg daily for 8-12 weeks and MK-677: 20-25 mg daily. We emphasize the importance of progressive overload and a calorie surplus of 300-500 calories daily. This combination is designed for aggressive muscle growth followed by post-cycle therapy.
Cutting stack – Ostarine, SR-9009 and Cardarine
We present the combination for cutting periods: Ostarine, SR-9009 and Cardarine. This three-SARM stack is designed to preserve muscle while aggressively reducing body fat percentage. Ostarine focuses on muscle sparing, SR-9009 increases mitochondrial efficiency and Cardarine improves cardiovascular resistance.
Ostarine: Muscle sparing. We value Ostarine (MK-2866) for its selectivity and relatively mild safety profile. During cutting periods, the preservation of lean mass is critical. This SARM signals the body to preserve muscle mass even under caloric deficit. Many users report that Ostarine allows them to maintain strength levels during aggressive cutting periods. Without this muscle sparing, calorie restriction can lead to significant muscle loss along with fat loss. Ostarine protects protein synthesis and reduces protein breakdown.
SR-9009: Mitochondrial optimization. We use SR-9009 (Stenabolic) to optimize mitochondrial function. SR-9009 increases the number of mitochondria in muscle cells and improves their efficiency, leading to increased fat oxidation and improved endurance. SR-9009 increases the effectiveness of cardiovascular exercise without causing muscle loss. Many report increased mental clarity, better exercise capacity and noticeable reduction in body fat. This is valuable for fitness enthusiasts who need to maximize fat loss.
Cardarine: Cardiovascular Boost. We finish this stack with Cardarine (GW501516), a PPARδ agonist that increases fat oxidation and cardiovascular endurance. Cardarine enables longer and more intense training sessions by improving mitochondrial function and fat burning. Cardarine leads to a greater caloric deficit which accelerates fat loss. Users report noticeable decreases in body fat with surprisingly preserved muscle strength despite calorie deficits.
Dosage for cutting. We recommend (for educational purposes only) Ostarine: 20-25 mg daily for 8-12 weeks, SR-9009: 20-30 mg daily and Cardarine: 10-20 mg daily for 8-12 weeks. This stack is designed for an 8-12 week cutting period combined with moderate caloric deficit (300-500 calories during undercut).
Recomp stack – RAD-140 and Ostarine
We present a balanced recomp (body recomposition) stack for those looking to build muscle mass while reducing body fat. This combination of RAD-140 and Ostarine delivers simultaneous muscle gain and fat loss. RAD-140 is potent for muscle building, while Ostarine offers excellent muscle sparing. Together, this combination allows a user to compost their body more efficiently than with either substance alone. During a recomp period, the goal is to replace fat with muscle mass. RAD-140 drives muscle protein synthesis while Ostarine ensures optimal processing.
Dosage for recomp. We recommend RAD-140: 6-8 mg daily for 8-12 weeks and Ostarine: 20-25 mg daily for 8-12 weeks. This lower RAD-140 dose during recomp is often sufficient, while Ostarine maximizes muscle sparing and fat breakdown. An important detail of recomp stacks is that we recommend caloric intake close to maintenance level — neither excess nor deficit. The protein intake should be at least 2.0-2.4 g per kg of body weight to provide the body with sufficient building material.
We’ve created this comparison chart to help you choose the right stack based on your goals:
|Stack Type|Primary Target|Components|Duration|Expected Change|
|Bulking|Maximum Muscle Growth|RAD-140 (8-12 mg) + MK-677 (20-25 mg)|8-12 weeks|+2-3 kg of muscle|
|Cutting|Fat Loss & Muscle Saving|Ostarine + SR-9009 + Cardarine|8-12 weeks|-3-5 kg fat|
|Recomp|Body composition change|RAD-140 (6-8 mg) + Ostarine|8-12 weeks|+1-2 kg muscle, -1-2 kg fat|
Safety, PCT, training and nutrition
We must emphasize that every SARM stack requires post-cycle therapy to normalize hormonal function. After an 8-12 week protocol, your body needs time to return to natural testosterone production. We know from research that without the right PCT you can experience hormonal disruption and muscle loss. An appropriate PCT period of 4-6 weeks helps the body normalize. We recommend reading our guide to PCT and why it’s important for detailed information.
SARMs are experimental substances and the long-term effects on humans are not fully established. They can cause suppression of natural testosterone production, liver damage, lipid profile disturbances and psychological effects. We strongly recommend that you consult a doctor before, during and after each cycle.
No SARM stack can replace basic training and nutrition principles — without proper training volume and nutritional intake, results will be minimal. We recommend 4-5 training sessions per week for bulking, 4-6 sessions for cutting, and 5 sessions for recomp. You should also see our guide to the best SARMs for the gym for detailed training recommendations. During bulking you need a calorie surplus with a high protein intake (2.2-2.5 g per kg), during cutting a moderate calorie deficit. In our SARM category, you will find products from established manufacturers with third-party analysis.
.entry-content