MK-677 and MK-2866 Capsules – 10mg Each Capsule | Ultra-Pure Research Stack
Verified third-party tested: MK-677 at 99.54% purity and MK-2866 at 99.84% purity. Certificates of Analysis available in the Data Sheet section.
High-Performance SARMs Duo: Build Lean Mass & Improve Recovery
Combining MK-677 (Ibutamoren) with MK-2866 (Ostarine) at 10mg each per capsule offers a powerhouse research formula aimed at promoting muscle development, metabolic efficiency, and overall vitality.
This carefully dosed stack is widely researched for its potential to:
Increase lean muscle mass
Accelerate fat loss
Enhance sleep quality and GH production
Improve bone mineral density & joint function
Support hormonal balance and reduce cortisol
Improve physical recovery & reduce inflammation
MK-677 (Ibutamoren) – Long-Lasting Growth Hormone Support
A potent GH secretagogue, MK-677 helps your body naturally increase growth hormone and IGF-1 levels—key players in muscle growth, fat metabolism, and tissue repair. Unlike injectable GH, MK-677 stimulates your own production, avoiding suppression and tolerance build-up.
Benefits of MK-677:
Promotes deep, anabolic sleep aiding muscle recovery
Boosts metabolism & energy levels
Encourages collagen synthesis for healthier skin, hair & nails
Improves skin tone & elasticity
Can emulate effects of 6IU/day of synthetic GH, without needles or cost
Zero suppression – no need for PCT or AI.
Unlike synthetic GH, which is fragile, expensive, and often counterfeit, MK-677 is orally bioavailable, highly stable, and safe for long-term use.
MK-2866 (Ostarine) – Lean Muscle Builder & Strength Booster
MK-2866, also known as Ostarine or Enobosarm, is a selective androgen receptor modulator (SARM) that binds precisely to muscle and bone tissue—stimulating growth without unwanted side effects on other organs.
Key Benefits:
Increases strength & muscle mass
Enhances stamina and endurance
Shortens recovery time between workouts
Reduces muscle wasting
Supports joint & bone health
Because MK-2866 works selectively, it allows for lean, quality gains while maintaining high performance and lower androgenic risk.
Post-Cycle Therapy (PCT) Support – Optimise Hormones & Preserve Gains
Even though MK-677 doesn’t require PCT, cycles involving MK-2866 should be followed by proper post-cycle support to help restore natural testosterone levels and maintain muscle gains.
Our premium PCT formula includes:
NAC (N-Acetyl Cysteine) – 1000mg
Antioxidant powerhouse that supports liver detox, boosts immune response, and protects against oxidative stress during recovery.
D-Aspartic Acid – 500mg
Helps stimulate Luteinizing Hormone (LH), kickstarting natural testosterone production after your SARM cycle. A key tool to reduce fatigue and mood swings during hormone rebound.
Fenugreek – 500mg
Traditionally used to enhance libido, balance hormones, and support testosterone recovery.
Milk Thistle – 300mg
Provides liver protection and regeneration. Contains silymarin, a powerful antioxidant supporting liver detoxification during and after your cycle.
Mucuna Pruriens (98% L-Dopa) – 200mg
Natural dopamine precursor to improve mood, motivation, libido, and hormonal function during recovery.
Vitamin B6 – 25mg
Essential for energy production, neurotransmitter balance, and nervous system function—especially important while the body rebalances post-cycle.
Recommended Use: Take 3 PCT capsules in the morning with your first meal for optimal hormonal recovery and support.
Important: MK-677 and MK-2866 are intended solely for research purposes.

















November 7, 2024
Best combo deal I’ve come across so far for mk677 and mk2866 which always work well for me. Coupled with fast and informative responses from support and no delivery charge makes it a no-brainer. Delivery was quick and efficient.
July 25, 2024
This 2866 combo seems really good, getting some big pumps and moving up the weight quite quick it seems 👌
January 5, 2024
My first experience into sarms and afrer researching both compounds this stack seemed perfect. After finishing the PCT I'm back re-ordering today a good stone heavier and if anything leaner too – Win Win !!!